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221.发明授权公开(公告)号：US10684219B2
公开(公告)日：2020-06-16
申请号：US16175156
申请日：2018-10-30
Applicant: Chevron U.S.A. Inc.
Inventor： Toni Zhang Miao , John Bryan Trenery, Jr. , Deyuan Kong , Roopa Kamath , Robert Neil Trotter , Cory James McDaniel
IPC: G01N33/24 , G01N21/359
Abstract: Hydrocarbons concentrations are determined in drilling cuttings samples by generating a model for predicting hydrocarbons concentrations. Methods include dividing multiple samples removed from drilling fluid into two one set analyzed using a retort, and another set analyzed using a handheld NIR spectrometer to obtain NIR diffuse reflectance data. PLS analysis is used to correlate the retort data with the diffuse reflectance data to generate a calibration model. The model is validated with samples having unknown hydrocarbons concentration. The model is used to predict the hydrocarbons concentration for samples removed from drilling fluid taken from the rig site using the spectrometer to obtain diffuse reflectance data. During measurements, each sample contains 0.1 to 10 wt % moisture and each sample is in a clear container pressed against the spectrometer window such that the IR source from the handheld device can pass to the drilled solids sample within the clear container without opening the clear container.
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公开(公告)号：US20200174145A1
公开(公告)日：2020-06-04
申请号：US16694870
申请日：2019-11-25
Applicant: CHEVRON U.S.A. INC.
Inventor： Tao Sun , Brian J. Willis , Maisha L. Amaru , Ashley D. Harris , Morgan David Sullivan
Abstract: A method is described for analysis of subsurface data including the use of physics-based modeling and experimental design that allows calculation of probabilities of physical subsurface properties. The method may include calculations of key controlling parameters. The method may include using multiple dimension scaling. The method may be executed by a computer system.
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公开(公告)号：US20200165778A1
公开(公告)日：2020-05-28
申请号：US15781893
申请日：2016-12-07
Applicant: KEMIRA OYJ , CHEVRON U.S.A. INC.
Inventor： Logan Jackson , Thomas J. Lynch , Ronald Robinson , Frances Fournier , Hong Yang , Sukhjit Aujla , Do Hoon Kim , Dennis Arun Alexis , Varadarajan Dwarakanath , David Espinosa , Taimur Malik
Abstract: Provided herein are liquid polymer (LP) compositions comprising an acrylamide (co)polymer, as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of acrylamide (co)polymer of from about 50 to about 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in dewatering, clarification, flocculation and/or thickening applications, and the like.
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公开(公告)号：US10597299B2
公开(公告)日：2020-03-24
申请号：US16193072
申请日：2018-11-16
Applicant: Chevron U.S.A. Inc.
Inventor： Dan Xie
Abstract: A method is provided for synthesizing molecular sieves of ITE framework type using one or more of 1-ethyl-1,3,5-trimethylpiperidinium cations and 1-ethyl-1-methyldecahydroquinolinium cations a structure directing agent.
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公开(公告)号：US10577879B2
公开(公告)日：2020-03-03
申请号：US15823002
申请日：2017-11-27
Applicant: Chevron U.S.A. Inc.
Inventor： Byron Kurt Deshotels
Abstract: A subterranean coring assembly can include a body having at least one wall that forms a cavity, wherein the cavity has a top end and a bottom end. The subterranean coring assembly can also include a first flow regulating device movably disposed within the cavity toward the top end, where the first flow regulating device is configured to move from a first default position to a first position within the cavity based on first flow characteristics of fluid that flows into the top end of the cavity toward the bottom end of the cavity.
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Patent Agency Ranking
公开(公告)号：US20200062605A1
公开(公告)日：2020-02-27
申请号：US16551835
申请日：2019-08-27
Applicant: Chevron U.S.A. Inc.
Inventor： XIE Dan
Abstract: A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-56 using benzyltributylammonium cations as a structure directing agent.
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227.发明授权公开(公告)号：US10569213B2
公开(公告)日：2020-02-25
申请号：US15883406
申请日：2018-01-30
Applicant: Chevron U.S.A. Inc.
Inventor： Joshua Allen Thompson , Dan Xie
Abstract: A method for removing acid gas from feed gas, comprising:alternating input of feed gas between beds of adsorbent particles that comprise zeolite SSZ-98 or SSZ-105; wherein gas contacts one of the beds during an adsorption and tail gas is vented from another bed by desorption; wherein a product gas containing no greater than about 2 Mol % carbon dioxide is produced, and methane and ethane are recovered. A method for removing acid gas, wherein the product gas contains 1 wppm H2S or less. A process for removing acid gas from feed gas, comprising adjusting selectivity of an adsorbent by changing a substitution of ERI phase with LEV phase in an intergrown molecular sieve. A process for removing acid gas from a feed gas, comprising: contacting a feed gas with adsorbent comprising a molecular sieve having a defined intergrowth of an ERI phase and a LEV phase.
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公开(公告)号：US10562005B2
公开(公告)日：2020-02-18
申请号：US15535692
申请日：2015-09-24
Applicant: THE UNIVERSITY OF WESTERN AUSTRALIA , CHEVRON U.S.A. INC.
Inventor： Gang Li , Eric Freemantle May , Paul Anthony Webley , Stanley Hsing-Wei Huang , Kaman Ida Chan
IPC: B01D53/047 , C07C7/12 , B01J20/18 , B01J20/04 , B01J20/06 , B01J20/22 , B01J20/16 , C07C7/13 , B01D53/04
Abstract: A method for separating at least one hydrocarbon from a feed containing a mixture of at least one hydrocarbon and nitrogen, comprising contacting the feed with an adsorbent comprising a porous support wherein the porous support comprises exchangeable cations and at least a portion of the exchangeable cations are organic cations.
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公开(公告)号：US20200041677A1
公开(公告)日：2020-02-06
申请号：US16529870
申请日：2019-08-02
Applicant: Chevron U.S.A. Inc.
Inventor： Prasenjit ROY , Anandaroop RAY , Reynaldo CARDONA , David C. BARTEL , Jacob G. TESFAYE
Abstract: A method is described for seismic amplitude analysis including receiving a seismic dataset representative of a subsurface volume of interest wherein the seismic dataset includes an angle or angle stack dimension; select a plurality of sets of sub-cubes in the seismic dataset wherein each set of sub-cubes includes a plurality of the angles or the angle stacks; compute standard score statistics for each of the plurality of sub-cubes; identify amplitude variation with angle (AVA) anomalies based on the standard score statistics for each of the set of sub-cubes; classify the AVA anomalies to generate classified AVA anomalies; and displaying, on a user interface, the classified AVA anomalies as a graphical display. The method is executed by a computer system.
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公开(公告)号：US20200024502A1
公开(公告)日：2020-01-23
申请号：US16588465
申请日：2019-09-30
Applicant: Halliburton Energy Services, Inc. , Chevron U.S.A. Inc.
Inventor： Donald Curtis Van Slyke , Dale E. Jamison , William Walter Shumway
Abstract: The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a non-polar oil, —OH, —(OH)2, or —(OH)3 alcohol, water, and an emulsifier in proportional amounts by weight or volume in that order. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity or viscosity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit and a method of electrocrushing drilling.
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