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China University Of Petroleum beijing
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China University Of Petroleum beijing patents


Recent patent applications related to China University Of Petroleum beijing. China University Of Petroleum beijing is listed as an Agent/Assignee. Note: China University Of Petroleum beijing may have other listings under different names/spellings. We're not affiliated with China University Of Petroleum beijing, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | China University Of Petroleum beijing-related inventors


Nano-hybrid lubricant and method thereof, and oil-based drilling fluid

The present invention relates to the well drilling field in petroleum industry, in particular to a nano-hybrid lubricant and method thereof, and oil-based drilling fluid. The lubricant comprises: graphite oxide and a biquaternary ammonium salt compound of which the cation part is represented by formula (1). The present invention also... China University Of Petroleum beijing

Drilling fluid additive composition, and oil-based drilling fluid and use thereof

The present invention relates to the well drilling field in petroleum industry, in particular to a drilling fluid additive composition that contains a lubricant, an emulsifier, and a rheological modifier, wherein, the lubricant contains: graphite oxide and a biquaternary ammonium salt compound in which the cation part is represented by... China University Of Petroleum beijing

Drilling fluid additive composition and pseudo oil-based drilling fluid suitable for horizontal shale gas wells

The present invention relates to the well drilling field in petrochemical industry, and discloses a drilling fluid additive composition comprising a nano-plugging agent, a bionic wall bracing agent, a bionic shale inhibitor, an emulsifier, and an amphiphobic wettability reversal agent, wherein, the nano-plugging agent is modified silicon dioxide nano-particle, and... China University Of Petroleum beijing

Process to prepare a composite ionic liquid

The present invention provides a process to prepare a composite ionic liquid, the process at least comprising the steps: (a) mixing an ammonium salt and a solid aluminium salt to obtain a first mixture; (b) stirring under heating the first mixture of step (a); (c) adding to the first mixture... China University Of Petroleum beijing

Composite trapping carbon dioxide in gas mixture

A hybrid method for capturing CO2 from a gas mixture is provided, comprising a step of contacting the CO2 containing gas mixture with a slurry consisting of a liquid medium, imidazole or imidazole derivative(s), and a metal-organic framework material (MOFs). For the slurry system, the mass fraction of the imidazole... China University Of Petroleum beijing

Three dimensional nuclear magnetic resonance logging instrument based on mutilple antenna excitation

The present invention provides a three dimensional nuclear magnetic resonance logging instrument based on multiple antenna excitation, including: a probe, an excitation transmitter and a bearing component; the probe includes magnet and multiple antennas arranged at outer side of the magnet, and the multiple antenna individually and independently provide feed;... China University Of Petroleum beijing

Nuclear magnetic resonance logging instrument probe with double-layered magnets and antenna excitation method

The present invention provides a nuclear magnetic resonance logging instrument probe with double-layered magnets and an antenna excitation method, the nuclear magnetic resonance logging instrument probe includes: a probe framework and a shielding layer arranged in the probe framework; a plurality of main magnets are provided above and below the... China University Of Petroleum beijing

Nuclear magnetic resonance logging instrument probe with multi-layered magnet and antenna excitation method

The present invention provides a nuclear magnetic resonance logging instrument probe with multi-layered magnet and an antenna excitation method, the nuclear magnetic resonance logging instrument probe includes a probe skeleton, multiple magnet assemblies and a plurality of antennas; the probe skeleton is of a cylindrical shape, multiple magnet assemblies are... China University Of Petroleum beijing

Three-dimensional nuclear magnetic resonance logging instrument probe, logging instrument and antenna excitation method

The present invention provides a three-dimensional nuclear magnetic resonance logging instrument probe, a logging instrument and an antenna excitation method, where the probe includes: a probe framework, a magnet and an antenna; four magnets are uniformly distributed along a circumference of the probe framework, the magnets are magnetized in a... China University Of Petroleum beijing

Multi-azimuth nuclear magnetic resonance logging instrument and antenna excitation method

The present invention provides a multi-azimuth nuclear magnetic resonance logging instrument and an antenna excitation method, the nuclear magnetic resonance logging instrument includes: a probe framework and a shielding layer arranged in the probe framework; a plurality of main magnets are provided above and below the shielding layer, respectively; central... China University Of Petroleum beijing

Multi-detecting depth nuclear magnetic resonance logging tool and probe, and antenna excitation method

The present invention provides a multi-detecting depth nuclear magnetic resonance logging tool and probe, and an antenna excitation method, the probe of nuclear magnetic resonance logging tool includes: a housing, a magnet and an antenna array apparatus; the magnet is fixedly arranged in the housing; the antenna array apparatus includes... China University Of Petroleum beijing

Degradable materials for oil and gas field operations and their synthesis method

A synthesis method for degradable material(s) (DM) which can be used in oil and gas field operations. The method involves using two, three, four or five polymer and chain extenders, including poly glycolic acid (PGA), polycaprolactone (PCL), polylactic acid (PLA), poly (butylene succinate) (PBS) and poly(3-hydroxybutyrate) (PHA), to synthesize a... China University Of Petroleum beijing








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