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公开(公告)号：US20210018643A1
公开(公告)日：2021-01-21
申请号：US17031211
申请日：2020-09-24
Applicant: TRIAD NATIONAL SECURITY, LLC , CHEVRON U.S.A. INC.
Inventor： Timothy James ULRICH, II , Harvey Edwin GOODMAN
IPC: G01V1/50 , G01V1/46 , E21B47/005 , E21B49/00 , E21B47/007
Abstract: A pulsed sinusoidal acoustic signal transmitted through a subsurface volume of a wellbore may be detected. A time-reversed acoustic signal of the pulsed sinusoidal acoustic signal may be transmitted through the subsurface volume of the wellbore. Transmission of the time-reversed acoustic signal through the subsurface volume of the wellbore may result in generation of focused acoustic signal in the subsurface volume of the wellbore. The focused acoustic signal in the subsurface volume of the wellbore may be detected, and the integrity of the wellbore may be determined based on the focused acoustic signal in the subsurface volume of the wellbore.
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公开(公告)号：US20210018642A1
公开(公告)日：2021-01-21
申请号：US16928303
申请日：2020-07-14
Applicant: Chevron U.S.A. Inc.
Inventor： Ashley Elizabeth SHULER , Prasenjit ROY , Reynaldo CARDONA
Abstract: A method is described for calibrating seismic data based on statistical properties of shale derived from either well logs in a volume of interest or a global database of statistical properties of shale. The method may be executed by a computer system.
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公开(公告)号：US20210002991A1
公开(公告)日：2021-01-07
申请号：US16923000
申请日：2020-07-07
Applicant: Chevron U.S.A. Inc.
Inventor： Samiha Said Elsayed MORSY , Nabijan NIZAMIDIN , Mohsen S. TAGAVIFAR
Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.
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公开(公告)号：US20210002444A1
公开(公告)日：2021-01-07
申请号：US16922999
申请日：2020-07-07
Applicant: Chevron U.S.A. Inc.
Inventor： Varadarajan DWARAKANATH , Taimur MALIK , Lin ZOU , Jimin Daniel ZHOU , Nabijan NIZAMIDIN , Gregory A. WINSLOW , Reza BANKI , Mohamad SALMAN
IPC: C08J9/12
Abstract: Disclosed are foam precursor compositions, foamed compositions, and methods of using these foamed compositions for the stimulation of unconventional reservoirs.
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公开(公告)号：US20200348659A1
公开(公告)日：2020-11-05
申请号：US16865081
申请日：2020-05-01
Applicant: Chevron U.S.A. Inc. , University of Southern California
Inventor： Yining DONG , Alisha DESHPANDE , Yingying ZHENG , Lisa Ann BRENSKELLE , Si-Zhao QIN
IPC: G05B19/418 , G05B19/408 , G05B19/406 , G06N20/00 , G06K9/62 , G06F9/54
Abstract: Methods and systems for building and maintaining model(s) of a physical process are disclosed. One method includes receiving training data associated with a plurality of different data sources, and performing a clustering process to form one or more clusters. For each of the one or more clusters, the method includes building a data model based on the training data associated with the data sources in the cluster, automatically performing a data cleansing process on operational data based on the data model, and automatically updating the data model based on updated training data that is received as operational data. For data sources excluded from the clusters, automatic building, data cleansing, and updating of models can also be applied.
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Patent Agency Ranking
206.发明申请公开(公告)号：US20200348433A1
公开(公告)日：2020-11-05
申请号：US16399204
申请日：2019-04-30
Applicant: Chevron U.S.A. Inc.
Inventor： Ellen Xiaoxia Xu , Yuanbo Lin , Ke Wang , Todd C. Dygert , Morgan David Sullivan , James P. Disiena
Abstract: A method is described for estimating hydrocarbon reservoir attributes including obtaining a geophysical dataset and a geological dataset; obtaining a parameter model, the parameter model having been conditioned by training an initial parameter model using training data, wherein the geological data includes well data and the training data includes the well data; picking a surface in the geophysical dataset; assigning stratigraphic meaning to the at least one surface based on the geological dataset; identifying at least one region of interest on the at least one surface; generating statistical seismic attributes for the at least one region; identifying critical attributes among the statistical seismic attributes by applying the parameter model to generate response variable maps for the at least one region; and generating uncertainty maps for each of the critical attributes and for the response variables. The method may be executed by a computer system.
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207.发明申请公开(公告)号：US20200347309A1
公开(公告)日：2020-11-05
申请号：US16533510
申请日：2019-08-06
Applicant: Chevron U.S.A. Inc.
Inventor： Theodorus Ludovicus Michael MAESEN , Derek BLACKWELL , Viorel DUMA , Varut KOMALARAJUN , Alexander E. KUPERMAN , Hyunuk RYU , Horacio TREVINO , Alex YOON , Ujjal MUKHERJEE
Abstract: A catalyst system has been designed that disrupts the sedimentation process. The catalyst system achieves this by saturating key feed components before the feed components are stripped into their incompatible aromatic cores. The efficacy of this disruptive catalyst system is particularly evident in a hydrocracker configuration that runs in two-stage-recycle operation. The catalyst is a self-supported multi-metallic catalyst prepared from a precursor in the hydroxide form, and the catalyst must be toward the top level of the second stage of the two-stage system.
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公开(公告)号：US20200347285A1
公开(公告)日：2020-11-05
申请号：US16851875
申请日：2020-04-17
Applicant: Chevron U.S.A. Inc.
Inventor： Do Hoon Kim , Dennis Arun Alexis , Varadarajan Dwarakanath , David Espinosa , Taimur Malik , Logan Jackson , Tom Lynch , Ronald Robinson , Fraces Fournier , Hong Yang , Sukhjit Aujila
Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., 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 a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 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 oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US10822539B2
公开(公告)日：2020-11-03
申请号：US16709872
申请日：2019-12-10
Applicant: Chevron U.S.A. Inc.
Inventor： Do Hoon Kim , Dennis Arun Alexis , Varadarajan Dwarakanath , David Espinosa , Taimur Malik , Logan Jackson , Tom Lynch , Ronald Robinson , Frances Fournier , Hong Yang , Sukhjit Aujla
Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., 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 a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 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 oil and gas operations, including enhanced oil recovery.
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公开(公告)号：US10801995B2
公开(公告)日：2020-10-13
申请号：US15564368
申请日：2016-06-13
Applicant: Marquette University , Chevron U.S.A. Inc.
Inventor： Fabien J. Josse , Florian Bender , Antonio J. Ricco , Rachel Ellen Mohler , Ravindra Vasant Kolhatkar
IPC: G01N29/02 , G01N33/18 , G01N29/44 , G01N29/036 , G01N29/22
Abstract: An exemplary embodiment of a method of detecting hydrocarbons in Systems and methods for sensing analytes in an aqueous solution, include pretreating a water sample to provide a test sample. A flow cell includes at least one sensor with a polymer coating having at least partial selectivity for at least one analyte. The flow cell receives a test sample and a reference sample. At least one output signal from the at least one sensor is processed with a microcontroller using a model of the sensor response and a bank of Kalman filters to estimate a concentration of at least one analyte in the aqueous solution.
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