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Schlumberger Technology Corporation patents
Recent patent applications related to Schlumberger Technology Corporation. Schlumberger Technology Corporation is listed as an Agent/Assignee. Note: Schlumberger Technology Corporation may have other listings under different names/spellings. We're not affiliated with Schlumberger Technology Corporation, we're just tracking patents.
ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Schlumberger Technology Corporation-related inventors
A sensor is provided for monitoring a mineral acid dissolved in a liquid. The sensor includes an internal reflection window which, in use, is in direct contact with the liquid. ... Schlumberger Technology Corporation
Method and system for wavefield separation of sonic data using cross-correlation
A method for wavefield separation of sonic data is provided. The method comprises estimating direct phases of waveforms of sonic data observed with two or more sensors by using cross-correlation of waveform traces at adjacent sensor locations, removing the direct phases from the observed waveforms, and extracting event signals from the waveforms after removing the direct phases.. ... Schlumberger Technology Corporation
Well management on cloud computing system
Well management includes receiving, from a user computing system, a simulation job request for simulating well management on the cloud computing system including compute nodes, and obtaining, for the simulation job request, search spaces for completion stage simulations, fracture stage simulations, and production stage simulations. Well management further includes orchestrating, using the search spaces, the completion stage simulations, the fracture stage simulations, and the production stage simulations on the cloud computing system to obtain at least one optional well plan, and sending the at least one optional well plan to the user computer system.. ... Schlumberger Technology Corporation
Method integrating fracture and reservoir operations into geomechanical operations of a wellsite
A method of performing oilfield operations at a wellsite is disclosed. The wellsite is positioned about a subterranean formation having a wellbore therethrough and a fracture network therein. ... Schlumberger Technology Corporation
Method of performing complex fracture operations at a wellsite having ledged fractures
A method of performing a fracture operation at a wellsite is disclosed for a wellsite positioned about a subterranean formation having a wellbore therethrough and a fracture network therein. The fracture network includes natural fractures. ... Schlumberger Technology Corporation
A method of performing oilfield operations at a wellsite is disclosed. The wellsite is positioned about a subterranean formation having multiple wellbores therethrough and a fracture network therein. ... Schlumberger Technology Corporation
A rotary tool for milling tubing in a borehole comprises at least one cutter with a cutter body and a cutting surface on the body. Each cutter is shaped and positioned on the tool so as to reduce tensile stress in the cutter, thereby reducing risk of the cutter becoming chipped or broken in use and produces swarf of reduced rigidity, less likely to form a blockage in the borehole.. ... Schlumberger Technology Corporation
Compositions and methods for well completions
Expansive cements for use in cementing subterranean wells comprise water, an inorganic cement and one or more particulate materials that swell upon contact with a water immiscible fluid. The cements may further comprise a water immiscible fluid. ... Schlumberger Technology Corporation
Compositions and methods for servicing subterranean wells
Aqueous fluids containing hydrophobic particles are effective media for cleaning water-base drilling fluids and drilling fluid solids from the interior surface of a casing string. Hydrophobic fibers may be added to a drilling fluid, a spacer fluid, a chemical wash, or combinations thereof. ... Schlumberger Technology Corporation
A tool can include a substrate with a support surface and at least one mechanical registration feature. The tool can also include a removable wear material including a matrix material. ... Schlumberger Technology Corporation
Method and system for generating a virtual core
Generating a virtual core includes obtaining acquired data for a region of interest, determining a rock type of the region of interest, obtaining a selection of modules based on the rock type, and generating, using the acquired data and an interpolator from the modules, a wellbore image of the region of interest. The interpolator generates interpolated data between data points among the acquired data in the wellbore image. ... Schlumberger Technology Corporation
Reservoir fluid geodynamics system and method
A method includes placing a downhole acquisition tool in a wellbore in a geological formation within a hydrocarbon reservoir. The wellbore or the geological formation, or both, contain a reservoir fluid. ... Schlumberger Technology Corporation
Dart and sleeve mechanism for multiple zone actuation
A system for selectively actuating sliding valves includes a segmented sleeve exhibiting a rocking (or pivoting) function. The rocking allows the bottom end of the sleeve to open wider when the front of a dart is pressed against it, provided the length of the dart is shorter than a “target length” determined by the sleeve geometry. ... Schlumberger Technology Corporation
Method of making particles having a ridge portion for use as proppant
A method for forming particles having a ridge portion includes inducing flow of a slurry of particles and a reactant through one or more orifices, detaching an amount of the slurry from the slurry flow following exit from the one or more orifices, the detached amount forming a slurry body, forming the slurry body into a particle shape, contacting the particle shaped slurry body with a coagulation solution to form a stabilized particle having the ridge portion, and drying and/or sintering the particle having the ridge portion.. . ... Schlumberger Technology Corporation
Method and apparatus for characterizing inorganic scale formation conditions employing a microfludic device
A test method and apparatus employs a microfluidic device to characterize properties of a fluid. The microfluidic device has an inlet port, an outlet port, and a microchannel as part of a fluid path between the inlet port and the outlet port. ... Schlumberger Technology Corporation
Heterogeneous downhole acoustic network
An acoustic network is located in a formation traversed by a borehole having a pipe contained therein. The acoustic network includes a backbone network having a number of backbone modems engaging the pipe and acoustically communicating along the pipe using a first modulation technique. ... Schlumberger Technology Corporation
Scalable computation and communication methods for domain decomposition of large-scale numerical simulations
The present disclosure provides systems and methods for domain decomposition in parallel numerical computer modelling that remove the need for large-scale synchronization, decouple the regions within a simulation, and reduces wait times, increasing linear scalability and thus suitability for large-scale cloud deployment. Presently disclosed systems and methods include asynchronous message passing which decouples the computational units within the system and introduces an elasticity that allows wait time to be largely eliminated. ... Schlumberger Technology Corporation
Assignment of systems tracts
A method (1310) for attributing a systems tract to a geological environment, including computing (1314) a shelf break for a geologic environment based at least in part on implicit function values associated with the geologic environment; identifying (1318) sea level variations with respect to geological time for the shelf break; and assigning (1322) at least one systems tract to the geologic environment based at least in part on the sea level variations.. . ... Schlumberger Technology Corporation
Complex tool for well monitoring
The complex tool for well monitoring comprises a cylindrical housing and at least two lever centralizers aligning the tool along a well axis. Each centralizer has at least three levers, as well as at least one fluid flow temperature sensor, at least one phase composition sensor and at least one thermal flow velocity sensor, all sensors are located on an axis of the tool. ... Schlumberger Technology Corporation
Methods and apparatus to automatically control oil burning operations
Methods and apparatus to automatically control oil burning operations are disclosed. An example apparatus includes a first control valve to control a flow of a first fluid into a fluid mixture to be burned; and a second control valve to control a flow of a second fluid into the fluid mixture. ... Schlumberger Technology Corporation
Downhole configurable testing apparatus and methods
Apparatus and methods for performing downhole testing. Example apparatus include a downhole tool string for conveying within a wellbore, the downhole tool string comprising an anchor device, a testing device, and a linear or rotary actuator. ... Schlumberger Technology Corporation
Compliant module connections
Systems capable of compliantly coupling electrical assemblies located within drill string modules or drill collars to one another can include male and female mating portions, wire-carrying hollow tubes including helical portions thereof, a plurality of wires, and interconnection systems for interconnecting the plurality of wires. Related methods can include manufacturing the drill string modules and various components thereof, coupling the drill string modules to one another, and tripping the drill string modules into a wellbore.. ... Schlumberger Technology Corporation
Compositions and methods for well completions
Expansive cements for use in cementing subterranean wells comprise water, an inorganic cement and one or more particulate materials that swell upon contact with a water-immiscible fluid. The cements may further comprise a water-immiscible fluid. ... Schlumberger Technology Corporation
Method and apparatus of determining a state of a system
A method of determining a parameter and state of a system from a time series of a system measurement, comprising using a processor to: a) build an approximate model of the system; b) sample a plurality of approximate system parameters for a current time interval from a posterior probability distribution; c) determine an estimate of the system parameter at the current time interval from the distribution of the plurality of approximate system parameters; d) determine an estimate of the system state at the current time interval given the estimate of the system parameter; e) repeat b) to d) for the next time interval. An apparatus for performing the method is disclosed, and application of the method to drilling and wellbores is discussed.. ... Schlumberger Technology Corporation
Optimization of neutron-gamma tools for inelastic-gamma ray logging
Systems, methods, and devices for inelastic gamma-ray logging are provided. In one embodiment, such a method includes emitting neutrons into a subterranean formation from a downhole tool to produce inelastic gamma-rays, detecting a portion of the inelastic gamma-rays that scatter back to the downhole tool to obtain an inelastic gamma-ray signal, and determining a property of the subterranean formation based at least in part on the inelastic gamma-ray signal. ... Schlumberger Technology Corporation
Downhole interpretation techniques using borehole dips
Embodiments of the disclosure involve a method comprising a method comprising inputting borehole dip data; determining characteristics of a plurality of dips based on the borehole dip data; applying one or more geological models to the characteristics; and generating one or more geological cross-sections based on geological modeling.. . ... Schlumberger Technology Corporation
Integrated coupling of scintillation crystal with photomultiplier in a detector apparatus
A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). ... Schlumberger Technology Corporation
Apparatus and methodology for measuring properties of microporous material at multiple scales
A method for characterizing properties of a sample that employs a test apparatus including an isolated sample cell and pressure sensor where the isolated sample cell is loaded with the sample and gaseous test fluid to perform a number of different tests to derive properties of the sample. The tests can be performed over different parameters, such as different applied pressures of the test fluid to derive parameters related to apparent gas permeability of the sample as a function of applied pressure, different gaseous test fluids to characterize dependence of permeability of the sample on mean free molecular path or pressure, with both adsorptive and non-adsorptive test gases to characterize at least one property related to adsorptive interaction between the adsorptive test gas and the sample, and with samples of varying saturation levels to derive a measure of at least one property of the subsamples at corresponding saturation levels.. ... Schlumberger Technology Corporation
Remote manifold valve and pump pairing technique for a multi-pump system
A technique for remote pairing of pumps and manifold valves at an oilfield. The technique takes advantage of a control unit having remote capability of opening and closing manifold valves. ... Schlumberger Technology Corporation
Well placement plan optimization
A well placement plan optimization (300) which considers existing wells and heterogeneity constraints in a consolidated manner, rather than relying on individual decisions where to place the next producer (p1-p4), injector i1), or recomplete an existing producer as injector. These individual decisions are combined in a whole field optimization process, in order to discover a plan that maximizes an objective function such as net present value or recovery.. ... Schlumberger Technology Corporation
Methods for interpreting nmr data
Methods for improved interpretation of nmr data acquired from industrial samples by simultaneously detecting more than one resonant nucleus without removing the sample from the sensitive volume of the nmr magnet or radio frequency probe are disclosed. In other aspects, the present disclosure provides methods for robust imaging/analysis of spatial distribution of different fluids (e.g., 1h, 23na, 19f) within a core or reservoir rock. ... Schlumberger Technology Corporation
Seismic constrained discrete fracture network
A method can include receiving values of an inversion based at least in part on seismic amplitude variation with azimuth (avaz) data for a region of a geologic environment; based at least in part on the received values, computing values that depend on components of a second-rank tensor αij, selecting a fracture height for fractures in the geologic environment; selecting an azimuth for a first fracture set of the fractures; based at least in part on the values for the second-rank tensor αij; the fracture height and the selected azimuth, determining an azimuth for a second fracture set of the fractures; and generating a discrete fracture network (dfn) for at least a portion of the region of the geologic environment where the discrete fracture network (dfn) includes fractures of the first fracture set and fractures of the second fracture set.. . ... Schlumberger Technology Corporation
Oil-based mud drill cutting cleaning for infrared spectroscopy
Oil-based mud cuttings are cleaned of drilling fluid and mud additives. After sorting and rinsing the cuttings with diesel, the cuttings are put in a syringe, which is repeatedly filled and emptied of diesel. ... Schlumberger Technology Corporation
Measurement and control of shock and vibration
A system for measuring and control of shock and vibration is disclosed. The system may include a bottomhole assembly having a downhole end and an uphole end opposite the downhole end. ... Schlumberger Technology Corporation
Compliant module connections
Systems capable of compliantly coupling electrical assemblies located within drill string modules or drill collars to one another can include male and female mating portions, wire-carrying hollow tubes including helical portions thereof, a plurality of wires, and interconnection systems for interconnecting the plurality of wires. Related methods can include manufacturing the drill string modules and various components thereof, coupling the drill string modules to one another, and tripping the drill string modules into a wellbore.. ... Schlumberger Technology Corporation
Measurement and processing to detect weak interfacial layers in hydrocarbon-bearing laminated formations with acoustic logging devices
Methods utilizing ultrasonic acoustic logging tools are provided for detecting thin formation layers that present markedly higher compliance than that of the surrounding rock in, for example, a laminated tight hydrocarbon-bearing formation. These layers may be interpreted as presenting potential interfacial and planes of weakness that may have bearing on the extent of a hydraulic fracture propagating across them.. ... Schlumberger Technology Corporation
Particle guard ring for mixed flow pump
A mixed-flow impeller for an electric submersible pump can include a lower end and an upper end; a hub that includes a through bore that defines an axis; blades that extend at least in part radially outward from the hub where each of the blades includes a leading edge and a trailing edge; an upper balance ring that includes a radially inward facing balance chamber surface and a radially outward facing diffuser clearance surface; and an upper guard ring disposed radially outwardly from the upper balance ring where the upper guard ring includes an axially facing diffuser clearance surface that is disposed axially between the trailing edges of the blades and the upper end.. . ... Schlumberger Technology Corporation
Efficient algorithms for volume visualization on irregular grids
A method for raycasting based on an irregular grid. The method includes raycasting, in a static mode, rays based on the irregular grid to generate a static image of a three dimensional (3d) volume dataset. ... Schlumberger Technology Corporation
Methods and systems for bounding box clipping
A method is described in which a polyhedral grid representative of seismic data is provided. A polyhedral cell of the polyhedral grid is identified. ... Schlumberger Technology Corporation
Downhole x-ray radiation detector systems and methods
A system for a downhole tool includes an x-ray generator that outputs x-ray radiation into a surrounding sub-surface formation using electrical power received from a power supply and a detector device adjacent the x-ray generator. The detector device includes a first detector with a first radiation sensitivity that outputs a first measurement signal based on interaction between a first portion of the x-ray radiation and the first detector. ... Schlumberger Technology Corporation
Systems and methods for monitoring radiation in well logging
A downhole tool includes a radiation generator configured to output radiation using electrical power received from a power supply. A first portion of the radiation is emitted into a surrounding sub-surface formation. ... Schlumberger Technology Corporation
A computer-implemented method and a system for processing acoustic signals
Acoustic signals sent by a logging tool disposed in a borehole are detected by receivers located on the logging tool. Time domain representations of the detected acoustic signals are converted into frequency domain representations. ... Schlumberger Technology Corporation
Methods and systems for juxtaposition across geological discontinuities
A method is described in which a seismic data set of a geological survey is provided. A geological discontinuity in the seismic data set is identified. ... Schlumberger Technology Corporation
Method for estimating a value of a kerogen property in subsurface formations
A method for estimating a value of a kerogen property in a subsurface formation where the value of the kerogen property is unknown. The method includes: measuring spectral intensity values over an infrared (ir) spectral range for a selected sample from the subsurface formation; determining a range of values representing the measured spectral intensity values corresponding to a vibrational mode attributable to kerogen in the selected sample, the range of values including values representing uncertainty in the measured spectral intensity over the portion of the spectral range; and inputting values from the range of values into a stochastic or simple regression model to determine an estimated value of the kerogen property in the selected sample.. ... Schlumberger Technology Corporation
Borehole trajectory via multi-component borehole seismic receiver
A method can include receiving an estimated spatial location of a three-component receiver in a borehole; receiving a plurality of spatial locations of sources of seismic energy; receiving incident angles for the three-component receiver at the estimated spatial location for the plurality of spatial locations of the sources of seismic energy; computing orientations for the three-component receiver based at least in part on the incident angles; minimizing an error function for the orientations; and, based at least in part on the minimizing, determining one or more deviation survey parameter values that specify at least a portion of a trajectory for the borehole.. . ... Schlumberger Technology Corporation
Emergency shutdown and disconnect of subsea tools using orientation
Initiating an emergency shutdown and disconnect (esd) sequence includes measuring an angle of the tubular member with respect to vertical using a sensor that is coupled to the tubular member. It may also be determined whether the angle exceeds a predetermined threshold for a predetermined amount of time. ... Schlumberger Technology Corporation
Wellsite equipment health monitoring
Methods and apparatus for detecting an equipment unit of a wellsite from a visible image, overlaying the detected equipment unit of the visible image on a corresponding portion of a thermal image, and generating an alert when a temperature indicated by the corresponding portion of the thermal image is outside of an operational temperature range of the detected equipment unit.. . ... Schlumberger Technology Corporation
Downhole toolstring spacer placement systems and methods
Techniques for improving implementation of a downhole tool string to be deployed in a borehole formed in a sub-surface formation. In some embodiments, a design device determines a model that describes expected relationship between properties of the downhole tool string, the borehole, the sub-surface formation, and mud cake expected to be formed in the borehole; determines calibration locations along the borehole based on properties of the borehole; determines candidate spacer configurations based on contact force expected to occur at contact points between the downhole tool string and the mud cake when deployed with each of the candidate spacer configuration via the model; and determines a final spacer configuration to be used to attach one or more spacers along the downhole tool string based on expected head tension to move the downhole tool string when deployed in the borehole with each of the candidate spacer configurations via the model.. ... Schlumberger Technology Corporation
Boron nitride nanotubes (bnnt) in polymers for extreme environment
A downhole tool includes a housing a measurement device disposed in the housing. The measurement device includes a sensor and electronic circuitry configured to detect or process signals detected by the sensor. ... Schlumberger Technology Corporation
Methods for seismic imaging
The present disclosure relates to target-enclosing extended image deconvolution. In a first aspect, the present disclosure provides methods to construct, from surface seismic reflection data, extended image gathers, i.e. ... Schlumberger Technology Corporation
Systems and methods for holding wireline device against well
A system includes a cable and a toolstring. The toolstring may couple to the cable to enable the toolstring to be placed in a wellbore. ... Schlumberger Technology Corporation
Rotary cutting tool
A downhole cutting tool which may be a reamer or a mill has a rotary tool body with at least one block which carries hard-faced cutters and projects or is extensible from the tool body. A radially outward facing part of the cutter block defines a channel for fluid flow which extends generally axially along the cutter block. ... Schlumberger Technology Corporation
Feature compensated borehole image coding
Image block transmission includes reading an image block from a downhole sensor. Based on the image block, a set of formation features attributes for the image block are detected. ... Schlumberger Technology Corporation
Electrical wellbore instrument swivel connector
An electrical instrument swivel connector has a first housing part and a second housing part rotatably connected to each other. The connection enabling transfer of axial loading between the housing parts. ... Schlumberger Technology Corporation
System and methodology for controlling optical transmittance
A technique facilitates control over optical transmittance and, in some applications, the technique may be carried out without using moving mechanical parts. A system may comprise a light source and an optical fiber line, e.g. ... Schlumberger Technology Corporation
Dual-use or position-sensitive helium-3 neutron detector by gas gain manipulation
A detector that detects properties of geological formation includes a first volume and a second volume each comprising helium-3 gas. The detector includes a gas electron multiplier having a mesh plate disposed between the first volume and the second volume. ... Schlumberger Technology Corporation
Inversion for tectonic stress
A method (710) can include receiving data for fractures associated with a geologic environment (712); performing stress inversion, based at least in part on a portion of the data and assignment of different mechanical fracture types to different populations of the fractures, to recover tectonic stress (716); and outputting the tectonic stress (720).. . ... Schlumberger Technology Corporation
Multiphase vortex flow meter
A multiphase flowmeter for detection of fluid flow by monitoring of vortex frequency or perturbation time of flight. The flowmeter includes a bluff body to facilitate formation of vortices during a consistent phase of a flowing fluid. ... Schlumberger Technology Corporation
Interpretation of pressure test data
Apparatus and methods for obtaining initial settings of station-specific parameters descriptive of wellbore/formation properties specific to downhole pressure test stations, and obtaining initial settings of station-shared parameters descriptive of petrophysical properties of petrophysically unique formation zones. A pressure transient model of the zones is obtained by regression utilizing the pressure data of each station and the initial settings of the station-specific and station-shared parameters. ... Schlumberger Technology Corporation
Formation pressure testing
A pressure testing module separable from and configured to be coupled with a tool base that is to be coupled along a downhole tool string to be conveyed within a wellbore extending into a subterranean formation. The pressure testing module includes a chamber and a piston assembly slidably disposed within the chamber, thus dividing the chamber into a first chamber portion and a second chamber portion. ... Schlumberger Technology Corporation
Downhole apparatus and technique to measure fluid resistivity
A method and apparatus are provided to measure fluid resistivity. The method includes driving a first winding at a first frequency to induce a first current in a fluid present in a flow line and then driving the first winding at a second frequency to induce a second current in the fluid present in the flow line. ... Schlumberger Technology Corporation
Method for determining an inflow profile in a multilayer well
A bottomhole temperature and a bottomhole pressure in a well are measured by means of sensors mounted on a perforation string below all perforation intervals. The measurements are made prior to perforating the well and after perforating the well until a temperature of a produced fluid returns to an initial reservoir temperature. ... Schlumberger Technology Corporation
Drillstring sticking management framework
A method includes receiving information during a drilling operation for a drillstring disposed in a bore in a formation; estimating uncertainty associated with the information; analyzing at least a portion of the information using a physics-based model to generate a result; computing, via a bayesian network, a risk probability of the drilling string sticking in the bore in the formation based at least in part on the result and the estimated uncertainty; and, based at least in part on the risk probability, issuing a signal.. . ... Schlumberger Technology Corporation
Relationship tagging of data in well construction
Processing systems and methods for receiving captured data of a data source attached with an expression of a relationship between the data source and a well construction system. The expression of the relationship between the data source and the well construction system is matched with an expression in a relationship descriptor including a description of a well construction system physical layout. ... Schlumberger Technology Corporation
Downhole tool power balancing
A system includes a downhole tool having a first load of a plurality of loads that receive power from a system power supply. The downhole tool includes a second load of the plurality of loads configured to receive power from the system power supply. ... Schlumberger Technology Corporation
Cathodically-protected plug assembly
A technique includes deploying a plug assembly including a degradable material inside a tubing string of a well; engaging the plug assembly with the tubing string to anchor the plug assembly to the tubing string; and preventing a cathodic reaction from degrading the degradable material. Preventing the cathodic reaction includes electrically isolating the engaged plug assembly from the tubing string. ... Schlumberger Technology Corporation
Determining residual statics of survey receivers
Observed data responsive to a seismic event in a target structure is received. Moment tensor inversion is applied on the observed data. ... Schlumberger Technology Corporation
Automated method and apparatus for measuring saturate, aromatic, resin, and asphaltene fractions using microfluidics and spectroscopy
A method of determining saturate, aromatic, resin, and asphaltene (sara) fractions of a hydrocarbon fluid sample, including: i) microfluidic mixing that forms a mixture including the hydrocarbon fluid sample and a solvent fluid that dissolves asphaltenes; ii) performing optical spectroscopy on the hydrocarbon fluid sample-solvent fluid mixture resulting from i); iii) microfluidic mixing that forms a mixture including the hydrocarbon fluid sample and a titrant fluid that precipitates asphaltenes; iv) microfluidically precipitating asphaltenes from the hydrocarbon fluid sample titrant fluid mixture resulting from iii); v) performing a microfluidic filtering operation that removes precipitated asphaltenes from the mixture resulting from iv) while outputting permeate; vi) performing optical spectroscopy on the permeate resulting from v); vii) determining an asphaltene fraction percentage of the hydrocarbon fluid sample based on the optical spectroscopy performed in ii) and vi); viii) sequentially separating saturate-, aromatic-, and resin-containing portions from the permeate from v); ix) for each separating of viii), measuring an optical property of the respective saturate-, aromatic-, and resin-containing portions over time; and x) determining fraction percentages of saturates, aromatics, and resins in the hydrocarbon fluid sample based on the measured optical properties of ix) and respective mass-to-optical correlation data.. . ... Schlumberger Technology Corporation
Oilfield reservoir saturation and permeability modeling
A system and method for correcting capillary pressure curves includes creating a capillary pressure curve using multiple linked hyperbolic tangents, determining a closure correction pressure cutoff of the capillary pressure curve, and correcting the capillary pressure curve. The correction may include normalizing the capillary pressure curve and extrapolating the capillary pressure curve.. ... Schlumberger Technology Corporation
Conduit mapping tool and method
An apparatus, system, and method for mapping a conduit wall, of which the apparatus includes a shaft defining a central longitudinal axis, and a sensor module coupled to the shaft and including an emitter configured to emit a light beam directed at least partially radially with respect to the central longitudinal axis, and a sensor configured to detect a reflected portion of the light beam, such that the sensor module is configured to measure a distance between the conduit wall and sensor module. The apparatus also includes a centralizer coupled to the shaft and configured to position the sensor module at a center of the conduit.. ... Schlumberger Technology Corporation
Active alternator control in a downhole tool string
A downhole system includes a drill string having a drilling fluid flow channel and at least one turbine alternator deployed in the flow channel. The turbine alternator is configured to convert flowing drilling fluid to electrical power. ... Schlumberger Technology Corporation
System and methodology for electronic cartridge insertion and/or extraction
A technique facilitates the insertion and/or extraction of an electronics cartridge with respect to a corresponding cartridge housing which may be used in a downhole tool, such as a logging tool. An insertion tool comprises a frame to which the cartridge housing may be coupled to enable insertion of a corresponding electronics cartridge. ... Schlumberger Technology Corporation
Well treatment
Methods of treating formation damage or other service induced damage in a near wellbore region of a wellbore of a subterranean formation, by treating a zone or zones in the near wellbore region, and diverting treatment fluid stages from the treated zones to untreated zone(s) with an acid precursor material and optionally also with fibers. The acid precursor material has an average particle size less than 1000 microns.. ... Schlumberger Technology Corporation
Pump rod connection
A pump rod can include a body that includes a longitudinal axis; and a pin at an end of the body where the pin includes threads where the threads include tangential elliptical roots.. . ... Schlumberger Technology Corporation
Drilling traction system and method
A traction system for connecting and/or disconnecting pipe during well drilling is disclosed. The traction system of the present disclosure is installed above a rotating control device or blowout preventer and may be used with a continuous circulation device. ... Schlumberger Technology Corporation
Water control agent for oilfield application
Methods for treating subterranean wells involve treating fluids that contain water and a plurality of water dispersible nanoparticles. The nanoparticles may be nanocellulose, rod-like nanoparticles, nanotubes or halloysite or combinations thereof. ... Schlumberger Technology Corporation
Methods for treating a subterranean well
Compositions and methods by which well control may be maintained during well construction, workover or well-intervention operations in a subterranean well without damaging formation are disclosed. A treatment fluid that comprises a carrier fluid, as well as degradable particles, or degradable fibers, or combination thereof is provided or prepared. ... Schlumberger Technology Corporation
Downhole equipment using flexible circuits
Downhole equipment circuitry, comprising: a first substrate member including one or more circuits; a second substrate member including one or more circuits; and a flexible circuit, wherein: the first and second substrate members are separate substrate members; the flexible circuit is of a laminated construction; and the flexible circuit provides electrical communication between the one or more circuits of the first substrate member and the one or more circuits for the second substrate member.. . ... Schlumberger Technology Corporation
Method for prediction of live oil interfacial tension at reservoir conditions from dead oil measurements
Methods may include measuring an interfacial tension (ift) for a dead oil sample prepared from a fluid within an interval of a formation; calculating a gas:oil ratio for the fluid within the interval of a formation at a specified temperature and pressure; calculating a live oil density for the fluid within the interval of a formation for the specified temperature and pressure; and converting the ift for the dead oil sample to a corrected ift measurement for a live oil within the interval of the formation from the calculated gas:oil ratio and the calculated density. Methods may also include constructing a depletion path for the dead oil sample from one or more isobars and one or more isotherms; and converting the ift for the dead oil sample to a corrected ift measurement from the calculated gas:oil ratio and the calculated live oil density for a live oil.. ... Schlumberger Technology Corporation
Method for analyzing cement integrity in cased wells using sonic logging
Methods are provided for identifying a cementation status of a multi-string cased wellbore utilizing sonic tools with monopole and/or dipole transmitters and with an array of sonic receivers axially displaced from the transmitter(s). The sonic tool is used to record waveforms. ... Schlumberger Technology Corporation
Co2 concentration measurement in dry gas mixtures
Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the nerst equation wherein the temperature of the electrolyte is above 488° c. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid.. ... Schlumberger Technology Corporation
Fluid relationship tracking to support model dependencies
A method, apparatus, and program product manage model dependencies in a petroleum simulation environment. Version data is maintained both for a model or data set used by a first simulation application and for a dependent model used by a second simulation application and based upon the model or data set used by the first simulation application. ... Schlumberger Technology Corporation
Low pressure fluid storage technique for a high pressure application
A technique for pre-storing an application fluid in coiled tubing for use in a downhole application. The technique includes filling the coiled tubing with the application fluid in a manner that utilizes pressures substantially below that of the pressures utilized in the downhole application itself. ... Schlumberger Technology Corporation
Systems and methods for reducing bit damage in a landing tool
A landing tool includes a body with an inner surface. A receiving groove is located on the inner surface and includes a first groove portion and a second groove portion separated by a tab. ... Schlumberger Technology Corporation
Well construction site communications network
Apparatus including, and methods of operating a communications network having a common data bus communicatively coupled to control devices, non-control devices, and network appliances. The control devices control corresponding equipment components of a well construction system. ... Schlumberger Technology Corporation
Nmr well logging instrument and method with synthetic apertures
An apparatus for measuring nuclear magnetic resonance (nmr) properties of subsurface formations includes a magnet for pre-polarizing nuclear spins in the formations. A plurality of transmitter antennas is spaced apart along a length of the apparatus. ... Schlumberger Technology Corporation
Metering fluid to a fluid actuator
Apparatus and methods for metering fluid to a fluid actuator. An example apparatus may include a hydraulic actuator and a fluid chamber. ... Schlumberger Technology Corporation
Metering fluid to fluid actuators
Apparatus and methods for metering fluid to a fluid actuator. An example apparatus may include a hydraulic actuator, a fluid chamber, and a hydraulic directional control valve. ... Schlumberger Technology Corporation
Method for analyzing cement integrity in casing strings using machine learning
The present disclosure provides methods and systems for analyzing cement integrity in a depth interval of a wellbore having a multiple string casing with an innermost annulus disposed inside at least one outer annulus. The method includes processing ultrasonic data obtained from ultrasonic measurements on the interval of the wellbore to determine properties of the innermost annulus. ... Schlumberger Technology Corporation
Well construction communication and control
Methods and apparatus for use in well construction, including a communications network having processing systems and a common data bus. At least one processing system implements subsystem virtual networks in the communications network. ... Schlumberger Technology Corporation
Well cementing compositions and methods
Cement slurry compositions comprising water, an inorganic cement and additive comprising nanocrystalline cellulose, microcrystalline cellulose, cellulose fibrils, or bacterial nanocellulose or combinations thereof have reduced fluid loss values. Such compositions may be prepared and placed in subterranean wells. ... Schlumberger Technology Corporation
Removal of acquisition effects from marine seismic data
Marine seismic data can be processed to remove or reduce two or more source side acquisition effects jointly when 1) the effects are placed in the same data domain as the received data and 2) the effects are described using the same basis functions which may signify representing the received data and the effects in the same chosen transform domain. The data effects may include source signature removal, source radiation pattern removal, residual shot noise suppression and data regularization, multi-channel reconstruction or regularization, prediction of sea surface multiples, separation of simultaneous sources etc. ... Schlumberger Technology Corporation
Multiphase flow meters and related methods
Multiphase flow meters and related methods are disclosed herein. An example apparatus includes an inlet manifold; an outlet manifold, first and second flow paths coupled between the inlet and outlet manifolds; and an analyzer to determine a flow rate of fluid flowing through the first and second flow paths based on a parameter of the fluid flowing through the first flow path.. ... Schlumberger Technology Corporation
Method for analyzing cement quality in multi-string cased wells using sonic logging
Methods and systems are provided for determining cement quality in an outer annulus of a multi-string cased wellbore having an inner annulus of mud. Data from a sonic logging tool is processed to obtain a slowness dispersion. ... Schlumberger Technology Corporation
Methods of evaluating cement isolations and quality
A method may include preparing a map of cement quality for one or more intervals of a wellbore; determining anticipated regions of fluid communication and anticipated regions of zonal isolation from the map of cement quality; and designing a stimulating treatment based on the presence of regions of fluid communication.. . ... Schlumberger Technology Corporation
Directional drilling steering actuators
A rotary steerable drilling system having a series of actuators disposed with a drilling tool, the series of actuators arranged in close proximity and independently operable to distribute a total steering force applied to a wellbore wall across the series of actuators. The series of actuators are extendable to different distances, such that the radial extension length of the actuators increases between actuators.. ... Schlumberger Technology Corporation
Downhole cables and methods of making the same
. . A downhole cable that has a cable core with an inner jacket located about it. The inner jacket has a shell located thereabout, and a pair of strength member layers surrounds the inner shell. ... Schlumberger Technology Corporation
Inversion-based workflow for processing nuclear density images in high-angle and horizontal wells
Methods and apparatus for characterizing a subterranean formation traversed by a wellbore including collecting data from the formation using a tool wherein the tool collects data to form an azimuthal image, characterizing a section of the formation comprising data and images acquired in a high angle wellbore section or horizontal wellbore section using a parametric model, and performing an inversion using apparent densities and volumetric photoelectric factor images to build a formation model wherein the inversion is tailored for high angle wellbore sections and/or horizontal wellbore sections.. . ... Schlumberger Technology Corporation
Turbines and methods of generating electricity
A turbine includes a rotor. The rotor is connected to at least one blade. ... Schlumberger Technology Corporation
System and method for mitigating a mud motor stall
A system and method for operating a mud motor in a wellbore. The method includes running the mud motor into the wellbore. ... Schlumberger Technology Corporation
Drillable latching plug
A latching dog includes a dog body, at least one engagement arm protrudes from an outer radial surface of the dog body in a transverse direction, and at least one retention fin protrudes from the dog body in a longitudinal direction. The at least one retention fin maintains the latching dog engaged with a housing surface to keep the latching dog at a desired axial and/or rotational position while milling the housing and latching dog.. ... Schlumberger Technology Corporation
Fluid loss and gain for flow, managed pressure and underbalanced drilling
A method for monitoring a well bore during drilling operations, particularly with respect to a fluid gain and/or fluid loss event. Monitoring the well bore may be accomplished by monitoring an incoming flow rate of the fluid into the wellbore. ... Schlumberger Technology Corporation
High trip rate drilling rig
A drilling rig system for obtaining high trip rates separates the transport of tubular stands in and out of their setback position into a first function, delivery and retrieval of tubular stands in well center position as a second function; and the functions intersect at a stand hand-off position where tubular stands are set down for exchange between tubular handling equipment. A drilling rig has a tubular delivery arm that vertically translates the mast in a non-conflicting path with a top drive. ... Schlumberger Technology Corporation
Selective seal stem anchor
A seal stem anchor assembly of the present disclosure includes: a tubular portion having body lock threads disposed about an external portion; and an anchor assembly including an activation module about the tubular portion and proximate the body lock threads, a cone, one or more anchor slips extending between the activation module and the cone, and a helical spring positioned and biased so as to push the activation module away from the cone.. . ... Schlumberger Technology Corporation
Corrosion inhibition
Corrosion of steel in acidic solution is inhibited using a mixture of a compound in which a plurality of heterocyclic aromatic groups with a quaternary nitrogen atom are connected together, such as by a linking group which may be covalently attached to the quaternary nitrogen atoms of the aromatic heterocyclic rings, and a polarizable adsorption-intensifying anion.. . ... Schlumberger Technology Corporation
Methods for treating high temperature subterranean formations
Methods are described for treating a subterranean formation penetrated by a wellbore. The methods include injecting a treatment fluid into the wellbore. ... Schlumberger Technology Corporation
Multi-material functional parts using additive manufacturing
A method of forming a component includes depositing successive layers of a binder and first particles of a first material using a layering device to build a first green segment, depositing successive layers of the binder and second particles of a second material different than the first material using the layering device to build a second green segment, assembling the first green segment and the second green segment together to form a green component, and infiltrating the green component with a metallic infiltrant to form the component.. . ... Schlumberger Technology Corporation
3d-printed seals and connectors for electric submersible pumps
An electrical connector assembly for electric submersible pumps (esps) has a fluid impenetrable seal 3d-printed between the power cable and an internal housing component of the electrical connector assembly. Electrical insulation or dielectric for a conductor of the power cable may also be 3d-printed integrally with the fluid seal. ... Schlumberger Technology Corporation
Em-telemetry remote sensing wireless network and methods of using the same
Em-telemetry remote sensing wireless systems include a plurality of downhole tools in a drilling area, an array of electrodes at the earth's surface, a noise reduction manager, and an acquisition system. Each downhole tool transmits a modulated current into the formation to generate an electromagnetic signal at the earth's surface. ... Schlumberger Technology Corporation
Method and apparatus for drill string control
A method and apparatus for controlling a drilling system by: implementing a network of level 1 direct control processing systems and level 2 coordinated control processing systems, wherein the level 1 direct control and level 2 coordinated control processing systems are communicatively coupled to each other; operating the level 2 coordinated control processing systems to: receive uphole drill string property measurements from sensors associated with the drill string near the driver, execute a control algorithm based on the received drill string property measurements to generation an actuator command, and transmit the actuator command to the level 1 direct control processing systems; and operating the level 1 direct control processing systems to control the driver based on the actuator command.. . ... Schlumberger Technology Corporation
Flow routing modules for downhole formation testing tools
A system includes a downhole acquisition tool housing that may receive a fluid that enters the downhole acquisition tool from a first flowline, a second flowline, or both, and a flow control device removably coupled to the downhole acquisition tool and having a housing, a plurality of flow routing plugs that may be in fluid communication to the first flowline, the second flowline, or both, and channels disposed within the housing and fluidly coupled to the plurality of flow routing plugs.. . ... Schlumberger Technology Corporation
Steering pads with shaped front faces
A rotary steerable device includes a steering pad disposed with a drilling tool and radially moveable relative to a centerline of the drilling tool to apply a steering force to a borehole wall. The steering pad has a front face to contact the borehole wall and having a diameter or width and a tapered section that tapers inward at a taper angle toward the centerline along a taper length in the direction from a take-off position to a leading edge relative to one of a rotational direction of the drilling tool or a drilling direction.. ... Schlumberger Technology Corporation
Fracturing fluids containing hydrophilic fibers
A fracturing fluid may include an aqueous base fluid; a proppant material; and hydrophilic fibers having a length of about 250 microns to 10 millimeters. A method of performing a fracturing operation may include injecting a fracturing fluid comprising hydrophilic fibers having a length of about 250 microns to 10 millimeters and proppant into a wellbore.. ... Schlumberger Technology Corporation
Compositions and methods of using degradable and nondegradable particulates for effective proppant placement
Methods herein include treating a formation including pumping a fracturing fluid including proppant, non-degradable fibers, and a degradable component into fractures in the formation. Fracturing fluids herein include an aqueous base fluid, a proppant materials, non-degradable fibers, and a degradable component. ... Schlumberger Technology Corporation
Mobile erector system
A mobile support structure (mss) includes a frame structure for receiving modular silos, a base moveable between transportation and support configurations, and connectors coupling with the silos. A mobile erecting assembly includes a chassis, a lift structure rotatable between transportation and mounting orientations while engaged with a silo, an engagement structure movable between first and second positions while engaged with the silo, and an actuator to move the engagement structure and silo between the first and second positions. ... Schlumberger Technology Corporation
Cables with polymeric jacket layers
The present disclosure relates to a cable that includes a core, a first armor wire layer surrounding the core, a first polymer layer disposed around the first armor wire layer, where the first polymer layer has a first sensitivity to energy emitted from an energy source, a second armor wire layer that may be disposed at least partially in the first polymer layer, and a second polymer layer disposed around the second armor wire layer, where the second polymer layer has a second sensitivity to the energy emitted from energy source, and the second sensitivity is greater than the first sensitivity.. . ... Schlumberger Technology Corporation
Method and system for dip picking and zonation of highly deviated well images
In one embodiment, a computer-based method includes obtaining a borehole image deriving from a downhole tool in a borehole of a geological formation, performing dip picking on the borehole image to derive one or more structural dips, deriving a continuous structural dip based on the one or more structural dips, defining one or more locations of zone boundaries on the borehole image, deriving one or more zone boundaries based on the continuous structural dip and the one or more locations of zone boundaries, and defining one or more zones of the wellbore in a second image based on the one or more zone boundaries.. . ... Schlumberger Technology Corporation
Apparatus and method for obtaining petrophysical images using electrical imager and multi-frequency dispersion measurements
Methods and systems for determining petrophysical parameters of a formation are provided. In one embodiment, a method includes acquiring formation data with a borehole imaging tool deployed in a well penetrating a formation and acquiring additional formation data with a dielectric logging tool deployed in the well. ... Schlumberger Technology Corporation
Evaluation of formation utilizing wideband electromagnetic measurements
Methods and systems are provided for investigating a rock sample, in which wideband electromagnetic response data are obtained and processed by inversion in order to determine values for a plurality of parameters of the rock sample. The wideband electromagnetic response data is derived from electromagnetic measurements of the rock sample at frequencies that fall within a wideband of frequencies, wherein the wideband of frequencies includes a low frequency sub-band that is sensitive to conductivity of the rock sample and a high frequency sub-band that is sensitive to the permittivity of the rock sample. ... Schlumberger Technology Corporation
Seismic waveform inversion
A method can include receiving seismic data of a geologic environment; receiving a background model that is a part of a partitioned model of the geologic environment; predicting reflections using the background model; determining incoherence of an offset-dependent matching filter based at least in part on the reflections and the seismic data; based at least in part on the incoherence, adjusting the background model to generate an adjusted background model; and outputting the adjusted background model.. . ... Schlumberger Technology Corporation
A method for determining equilibrium wettability of an interface between a void space and a solid phase of a rock sample
The method for determining equilibrium wettability of an interface between a void space and a solid phase of a rock sample comprises obtaining a three-dimensional image of the internal structure of the sample. On the obtained image of the internal structure of the sample, a void space and a solid phase are differentiated. ... Schlumberger Technology Corporation
Terminal modules for downhole formation testing tools
A method includes positioning a downhole acquisition tool in a wellbore in a geological formation. The method includes operating a pump module to gather information for a fluid outside of the downhole acquisition tool that enters the downhole acquisition tool from a first flowline, a second flowline, or both while the downhole acquisition tool is within the wellbore. ... Schlumberger Technology Corporation
Estimating pressure for hydraulic fracturing
A method for estimating downhole pressure in wells during a treatment procedure. A pressure head in a treatment well may be determined without requiring downhole sensors. ... Schlumberger Technology Corporation
Real time drilling monitoring
A method, system, and computer readable medium for managing drilling operations include calibrating a drilling model using collected drilling data, and executing, during a drilling operation, a simulation on the drilling model to generate a predicted measurement value for a drilling property. During the drilling operation and from a drillstring, an actual measurement value for the drilling property is obtained. ... Schlumberger Technology Corporation
Oilfield reservoir saturation and permeability modeling
A method for modelling saturation in a reservoir, comprising: obtaining capillary pressure data representing capillary pressure in the reservoir; obtaining permeability data representing permeability in the reservoir; determining a number of pore throats represented by the capillary pressure data; creating hyperbolic tangents based on the capillary pressure data equal in number to the number of pore throats; combining hyperbolic tangents to create a curve to fit the capillary pressure data and to define hyperbolic tangent parameters; combining at least one of the hyperbolic tangent parameters with the permeability data to define a saturation height function; modelling a saturation in the reservoir using the saturation height function; and displaying the saturation model based on the saturation height function. The determination of the number of pore throats may comprise creating an initial capillary pressure curve using a predetermined number of multiple linked hyperbolic tangents, determining a first derivative of the capillary pressure curve, and determining a number of local minima in the capillary pressure curve.. ... Schlumberger Technology Corporation
Oilfield reservoir saturation and permeability modeling
A method and system for modeling saturation in a reservoir that includes obtaining capillary pressure data representing capillary pressure in a reservoir, obtaining permeability data representing permeability in the reservoir, determining a number of pore throats represented by the capillary pressure data, creating a set of hyperbolic tangents equal in number to the number of pore throats, combining the set of hyperbolic tangents to create a curve to fit the capillary pressure data and to define a set of hyperbolic tangent parameters, combining at least one of the hyperbolic tangent parameters with the permeability data to define a saturation height function, modeling user a saturation in the reservoir using the saturation height function, and displaying the saturation model based on the saturation height function.. . ... Schlumberger Technology Corporation
Multi-mode control module
A technique facilitates operation of an actuator via an operating module. The actuator and the operating module are constructed to enable operation in a wide variety of environments and applications. ... Schlumberger Technology Corporation
Computationally-efficient modeling of viscous fingering effect for enhanced oil recovery (eor) agent injected at multiple injection concentrations
A method, apparatus, and program product model an enhanced oil recovery (eor) process in a subsurface volume by computer modeling a variable-concentration injection of an eor agent in multiple grid blocks of a reservoir grid, where the variable-concentration injection includes an injection of the eor agent at multiple injection concentrations. For a first grid block among the multiple grid blocks within which eor agent is present, a viscous fingering effect is modeled by modifying a fluid mobility in the first grid block based at least in part upon the injection concentration of the eor agent present in the first grid block.. ... Schlumberger Technology Corporation
Hydraulic fracturability index using high resolution core measurements
A workflow is provided that characterizes the hydraulic fracturability of a rock based on properties obtained from ct scanning and from non-ct based data. The characterization is based on obtaining a plurality of properties of a core sample as a function of axial location in the core sample. ... Schlumberger Technology Corporation
System and method for controlled pumping in a downhole sampling tool
A downhole tool designed to be disposed in a borehole of a subterranean formation is provided. The downhole tool includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. ... Schlumberger Technology Corporation
Method for hydraulic fracturing of a hydrocarbon formation
A fracturing fluid is injected under a high pressure into a well drilled in a formation to create a hydraulic fracture. Then a suspension of the hydraulic fracturing fluid mixed with proppant particles is injected into the well and the created hydraulic fracture, the suspension having a consistency coefficient greater than 0.1 pa sn at any flow index n and a yield stress higher than 5 pa. ... Schlumberger Technology Corporation
Well task scheduling
A method can include receiving scheduled tasks associated with subsystems of a wellsite system wherein the scheduled tasks are associated with achievement of desired states of the wellsite system; transmitting task information for at least a portion of the scheduled tasks to computing devices associated with the subsystems; receiving state information via the wellsite system; assessing the state information with respect to one or more of the desired states; based at least in part on the assessing, scheduling a task; and transmitting task information for the task to one or more of the computing devices associated with the subsystems.. . ... Schlumberger Technology Corporation
Well planning service
A method can include receiving well plan information that includes a reservoir target associated with a reservoir of a subterranean environment; based at least in part on characteristics of the subterranean environment, determining well trajectory metrics that comprise a geometrical metric; determining a weighted metric based at least in part on weighting of the well trajectory metrics; and, based at least in part on an assessment of the weighted metric, outputting directional drilling information for a well trajectory to the reservoir target.. . ... Schlumberger Technology Corporation
Packer system having lockable mechanism
A technique facilitates temporary locking of a mechanical packer to prevent inadvertent actuation of the mechanical packer. The mechanical packer may be set via manipulation of a setting mandrel which works in cooperation with a releasable locking mechanism. ... Schlumberger Technology Corporation
Rotary shouldered tool joint with non-rotating connection means
A connector system includes a first sub and a second sub having a landing shoulder, and the first sub carries a threaded sleeve for engaging the second sub. The first sub includes a stinger section and a flying nut that provides a sealed and torque carrying connection when secured against the landing shoulder of the second sub. ... Schlumberger Technology Corporation
Hydrolyzable particle compositions, treatment fluids and methods
A composition, treatment fluid and method using hydrolyzable fines. A treatment fluid, which may optionally include a high solids content fluid (hscf) and/or an apollonianistic solids mixture, includes a fluid loss control agent comprising a dispersion of hydrolyzable fines, optionally with one or more of a surfactant, plasticizer, dispersant, degradable particles, reactive particles and/or submicron particles selected from silicates, γ-alumina, mgo, γ-fe2o3, tio2, and combinations thereof.. ... Schlumberger Technology Corporation
Early viscosity enhancement of gelled oil
A method of increasing the viscosity of a gelled organic-based fluid is disclosed. The method includes forming the gelled organic-based fluid by combining an organic solvent, an alkaline agent in the form of particles present in the gelled organic-based fluid in an amount from about 0.001 to about 0.02 pounds per gallon of the gelled organic-based fluid, a gelling agent, and a metal crosslinker. ... Schlumberger Technology Corporation
Treatment based on fiber cable sensor data
A method can include, during a treatment process, receiving vibration data acquired over a length of a fiber cable sensor disposed in a well that includes perforations; filtering the vibration data as to traveling waves to generate filtered data; analyzing the filtered data to generate fluid flow information; and adjusting the treatment process based at least in part on the fluid flow information.. . ... Schlumberger Technology Corporation
Downhole tools and methods of controlling downhole tools
A downhole tool that has a plurality of arm assemblies. Each of the arm assemblies has an arm configured to expand and retract and an actuator. ... Schlumberger Technology Corporation
System and method for component centering
A technique facilitates positively centering a well component, e.g. A downhole tool and/or coiled tubing, inside a pressure barrier, e.g. ... Schlumberger Technology Corporation
Electrical connectors and assemblies including same
. . Plugs, receptacles, and assemblies including same. The plug can include an interface having a plurality of pins extending therefrom. ... Schlumberger Technology Corporation
Unstructured volumetric grid simplification using sub-volume clustering
A method, apparatus, and program product cluster a plurality of cells of an input unstructured volumetric grid representative of a subsurface volume into a plurality of clusters, simplify a boundary of each cluster and generate an output unstructured volumetric grid representing at least a portion of the input unstructured volumetric grid by generating in the output unstructured volumetric grid a respective cell for each of the plurality of clusters. The resulting output grid may be used to facilitate the generation of visualizations and/or numerical simulations.. ... Schlumberger Technology Corporation
Crosswell microseismic system
A method can include receiving seismic data responsive to stimulation of an anisotropic formation via a well disposed in the formation; receiving crosswell calibrated velocity model information that spans a depth range of the anisotropic formation; locating a microseismic event generated by the stimulation based at least in part on a portion of the received seismic data and based at least in part on the crosswell calibrated velocity model information; and rendering the located microseismic event to a display with respect to one or more dimensions of the anisotropic formation.. . ... Schlumberger Technology Corporation
Reactive super-elastic composite oilfield components
An oilfield tool can include a composite structure that includes a reactive shape-memory alloy element disposed at least in part in a filler material.. . ... Schlumberger Technology Corporation
Methods of applications for a mass spectrometer in combination with a gas chromatograph
Methods may include emplacing a wellbore tool in a wellbore, the wellbore tool including a gas chromatograph and a mass spectrometer, wherein the mass spectrometer is configured to operate at a pressure greater than 10−2 torr, measuring a sample from the wellbore using the wellbore tool, and determining a molecular weight of one or more components of the sample from the measured response of the wellbore tool. Methods may also include establishing a library of one or more chemical components, emplacing a wellbore tool in a wellbore, the wellbore tool including a gas chromatograph and a mass spectrometer, wherein the mass spectrometer is configured to operate at a pressure greater than 10−2 torr, measuring a sample from the wellbore using the wellbore tool, comparing the measured response from the wellbore tool for the sample with results from the library of one or more chemical components, and determining a molecular weight of one or more components of the sample.. ... Schlumberger Technology Corporation
Gas chromatograph mass spectrometer for downhole applications
Wellbore tools in accordance with the present disclosure may include a gas chromatograph; and a mass spectrometer, wherein the mass spectrometer is configured to operate at a pressure greater than 10−2 torr. Systems in accordance with the present disclosure may include a gas chromatograph; and a mass spectrometer, wherein the mass spectrometer is configured to operate at a pressure greater than 10−2 torr. ... Schlumberger Technology Corporation
Wellsite performance system
A method can include receiving at least one metric; analyzing options associated with implementation of at least a portion of a well plan with respect to the at least one metric; implementing one of the options; receiving information via a wellsite system during implementation of the one of the options; adjusting the one of the options based at least in part on the information to provide an adjusted option; and implementing the adjusted option.. . ... Schlumberger Technology Corporation
Downhole milling cutting structures
Systems, tools, and methods include using a milling assembly with a mill having multiple, different types of cutting element inserts. A gage region of the mill includes a first type of cutting element insert, and a shoulder region of the mill includes a second type of cutting element insert. ... Schlumberger Technology Corporation
Method of hydraulic fracturing using fracturing fluid mixture with shrinkable polymer fibers and fine particles
The disclosure relates to well systems for producing various fluids, in particular for producing the fluid from the hydrocarbon-bearing formation using hydraulic fracturing. According to the method of hydraulic fracturing of the formation intersected by the wellbore, the wellbore is provided, and the step of injecting the fracturing fluid without proppant to the wellbore is performed to form a fracture in the formation. ... Schlumberger Technology Corporation
Thin bed tuning frequency and thickness estimation
A method, apparatus, and program product analyze time-series data such as seismic data collected from a subsurface formation by splitting a time-series data set such as an individual seismic trace into a plurality of spectral components, each having an associated frequency, determining an instantaneous frequency for each spectral component, determining a frequency difference for each spectral component based at least in part on the associated and instantaneous frequencies therefor, and determining a tuning parameter based at least in part on the determined frequency difference of each spectral component. Doing so enables, for example, thin-bed structures in the subsurface formation to be identified, and in some instances, thicknesses of such structures to be determined.. ... Schlumberger Technology Corporation
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