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公开(公告)号：US20190080164A1
公开(公告)日：2019-03-14
申请号：US16131946
申请日：2018-09-14
Applicant: CHEVRON U.S.A. INC.
Inventor： Paul Duke , Shuxing Cheng
Abstract: Systems and methods for categorizing patterns of characters in a document by utilizing machine based learning techniques include generating character classification training data, building a character classification model based on the character classification training data; obtaining an image that includes a pattern of characters, the characters including one or more contours, applying the character classification model to the image to classify the contours, and applying the labels to clusters of the contours.
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公开(公告)号：US20190071946A1
公开(公告)日：2019-03-07
申请号：US16123333
申请日：2018-09-06
Applicant: Chevron U.S.A. Inc.
Inventor： Jay Painter , Christopher Champeaux , Doug Scott
IPC: E21B33/068 , E21B17/05 , E21B34/02 , E21B43/26
Abstract: A system for distributing pressurized fluid during wellbore operations can include a pressure vessel having a fluid inlet and a fluid outlet. The system can also include a conduit rotatably connected to the fluid outlet of the pressure vessel for coupling to one or more wellbores. Also, a method for distributing pressurized fluid during wellbore operations can include receiving pressurized fluid in a pressure vessel. The method can also include distributing to one or more wellbores the pressurized fluid from the pressure vessel through a conduit rotatably connected to the pressure vessel.
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公开(公告)号：US10215869B2
公开(公告)日：2019-02-26
申请号：US15084657
申请日：2016-03-30
Applicant: CHEVRON U.S.A. INC.
Inventor： John Kenneth Washbourne , Kenneth Paul Bube , Raymond Andrew Ergas , Tamas Nemeth
Abstract: A method is described that includes receiving one or more seismic measurements corresponding to a plurality of source and receiver locations and providing an earth model for a geologic medium having a heterogeneous tilted symmetry axis. The earth model includes a nonzero shear velocity in the direction of the symmetry axis. The one or more seismic measurements are propagated over a plurality of time-steps in accordance with the earth model and a set of energy-conservative self-adjoint pseudoacoustic equations. The set of energy-conservative self-adjoint pseudoacoustic equations describes one or more seismic wavefields.
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公开(公告)号：US20190024883A1
公开(公告)日：2019-01-24
申请号：US16142983
申请日：2018-09-26
Applicant: Chevron U.S.A. Inc.
Inventor： John A. SEGERSTROM
Abstract: A high efficiency multi-stage duct fired heat recovery steam generator (HRSG) is provided to generate steam for use in thermal enhanced oil recovery (EOR) applications. The HRSG is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners. Each evaporator is arranged downstream from the corresponding duct burner. At least one perforated plate is configured to disperse and distribute available oxygen within a subsequent duct burner. Hot exhaust gas from a gas turbine (over 1000° F.) is directed to the duct burners in series, allowing further combustion and maximizing thermal efficiency for the HRSG to have a thermal efficiency of at least 92%, and for the exhaust gas exiting the HRSG to contain oxygen in a range of 2% to 8%.
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公开(公告)号：US10184323B2
公开(公告)日：2019-01-22
申请号：US15353013
申请日：2016-11-16
Applicant: Chevron U.S.A. Inc.
Inventor： Namhyo Kim , Antonio Lazo , Elaine Lange
Abstract: A sand control screen assembly includes a base pipe having openings having non-uniform cross-section. The sand control screen assembly can also include a drainage layer positioned about the base pipe, a filter medium, and a protective shroud. The sand control screen assembly prevents the flow of particulate material of a predetermined size therethrough and allows the flow of production fluids therethrough.
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Patent Agency Ranking
276.发明申请公开(公告)号：US20180329096A1
公开(公告)日：2018-11-15
申请号：US15973621
申请日：2018-05-08
Applicant: CHEVRON U.S.A. INC.
Inventor： James R. MAGILL
CPC classification number: G01V1/307 , G01V1/282 , G01V1/34 , G01V2210/624 , G01V2210/632
Abstract: A method is described for a manner of geologic analysis using seismic data. The method includes steps to produce improved amplitude versus angle (AVA) information that may be used for analysis of geologic features of interest including estimation of pore fluid content. The method assesses the probability of hydrocarbons in a subterranean reservoir based on seismic amplitude variations along offsets or angles for portions of a seismic horizon. The method may be executed by a computer system.
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公开(公告)号：US10112854B2
公开(公告)日：2018-10-30
申请号：US14485631
申请日：2014-09-12
Applicant: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION , Chevron U.S.A. Inc. , Arcadis Corporate Services, Inc.
Inventor： Julio A. Zimbron , Thomas C. Sale , Matthew J. Biondolillo , Philip H. Batten , Marc Chalfant , Mark Lyverse
IPC: C02F1/40 , C02F3/06 , C02F1/28 , C02F3/02 , C02F101/32 , C02F103/06
Abstract: A method for controlling petroleum hydrocarbon (NAPL) sheen releases resulting from seeps, ebullition and erosion, on water surfaces, is described. An oleophilic bio-Barrier (OBBs), which may include a composite of hydrocarbon sorptive materials through which water is readily conducted, is placed at a groundwater/surface water interface (GSI) for promoting natural aerobic degradation of the intercepted/adsorbed NAPL through natural cycling of aerobic surface water and/or atmospheric oxygen. OBBs may be protected by structural covers (i.e., sand and rock gabions, as examples).
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公开(公告)号：US10112839B2
公开(公告)日：2018-10-30
申请号：US15716786
申请日：2017-09-27
Applicant: Chevron U.S.A. Inc.
Inventor： Stacey Ian Zones
Abstract: A method is disclosed for preparing molecular sieve SSZ-85 in the absence of a source of fluoride ions.
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公开(公告)号：US20180300401A1
公开(公告)日：2018-10-18
申请号：US15916091
申请日：2018-03-08
Applicant: Chevron U.S.A. Inc. , University of Southern California
Inventor： Yinuo ZHANG , Anand V. PANANGADAN , Randall G. MCKEE , Mauritz THERON , Benjamin D. GAMBLE , Viktor K. PRASANNA
Abstract: A computer implemented method of matching ontologies is disclosed. The method includes, for each pair of entities of a first ontology and a second ontology, wherein each pair of entities includes a first entity from a first plurality of entities of the first ontology and a second entity from a second plurality of entities of the second ontology, and wherein the first entity and the second entity of each pair of entities is of a same data type: (1) determining a vector of similarities for the pair of entities; (2) determining a confidence score for the vector of similarities; (3) determining a relation score for each relation type based on the vector of similarities to measure relatedness between the first entity of the pair of entities and the second entity of the pair of entities; and (4) generating a mapping ontology based on the relation type, the relation score, and the confidence score of each pair of entities.
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公开(公告)号：US10093594B2
公开(公告)日：2018-10-09
申请号：US15159205
申请日：2016-05-19
Applicant: Chevron U.S.A. Inc.
Inventor： Sven Ivar Hommeltoft
IPC: C07C2/62 , C10M105/04
Abstract: An isoalkane alkylate base oil and a process to make an isoalkane alkylate base oil having a VI higher than 90, comprising: a. selecting an isoalkane feed containing at least one isoalkane and an olefin feed containing at least one linear olefin such that a combined carbon number of the isoalkane feed and the olefin feed is from 20 to 60; and b. alkylating the isoalkane feed with the olefin feed in the presence of an acidic alkylation catalyst under alkylation conditions to make the isoalkane alkylate base oil having the VI higher than 90; wherein the isoalkane alkylate base oil has a kinematic viscosity at 100° C. from 2 to 30 mm2/s, a pour point less than 0° C., and a bromine index less than 2000 mg Br/100 g.
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