公开(公告)号：US20240101913A1

公开(公告)日：2024-03-28

申请号：US18270202

申请日：2021-12-29

Applicant: CHEVRON U.S.A. INC.

Inventor： Ling JIAO ,  Bi-Zheng ZHAN ,  Don BUSHEE ,  Theodorus Ludovicus Michael MAESEN ,  Hye-Kyung TIMKEN ,  Richard DUTTA ,  Jay PAREKH

IPC: C10G65/12 ,  C10G7/00 ,  C10G47/14

CPC classification number: C10G65/12 ,  C10G7/00 ,  C10G47/14 ,  C10G2300/107 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4081

Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

公开(公告)号：US20240100513A1

公开(公告)日：2024-03-28

申请号：US18269915

申请日：2021-12-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Adeola OJO ,  Guan-Dao LEI

IPC: B01J37/04 ,  B01J21/04 ,  B01J23/10 ,  B01J23/63 ,  B01J23/83 ,  B01J23/89 ,  C10G45/64

CPC classification number: B01J37/04 ,  B01J21/04 ,  B01J23/10 ,  B01J23/63 ,  B01J23/83 ,  B01J23/894 ,  C10G45/64 ,  B01J35/026

Abstract: A method for making a hydroisomerization catalyst having improved thermal stability and metal dispersion characteristics, the catalyst prepared therefrom, and a process for making a base oil product using the catalyst are disclosed. The catalyst is prepared from a composition comprising an SSZ-91 molecular sieve and a rare earth modified alumina, with the composition being modified to contain a Group 8-10 metal, typically through impregnation of a Group 8-10 metal composition. The catalyst may be used to produce dewaxed base oil products by contacting the catalyst under hydroisomerization conditions with a hydrocarbon feedstock.

公开(公告)号：US11928565B2

公开(公告)日：2024-03-12

申请号：US18049149

申请日：2022-10-24

Applicant: Chevron U.S.A. Inc. ,  University of Southern California

Inventor： Yining Dong ,  Alisha Deshpande ,  Yingying Zheng ,  Lisa Ann Brenskelle ,  Si-Zhao Qin

IPC: G06N20/00 ,  G05B19/406 ,  G05B19/408 ,  G05B19/418 ,  G06F9/445 ,  G06F9/455 ,  G06F9/54 ,  G06F18/2135 ,  G06F18/23 ,  G06N7/00

CPC classification number: G06N20/00 ,  G05B19/406 ,  G05B19/408 ,  G05B19/41885 ,  G06F9/542 ,  G06F18/2135 ,  G06F18/23

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.

公开(公告)号：US11906505B2

公开(公告)日：2024-02-20

申请号：US17668463

申请日：2022-02-10

Applicant: CHEVRON U.S.A. INC.

Inventor： Meir R. Hasbani ,  Michelle K. Young

IPC: C10L1/04 ,  G01T1/20 ,  G01N33/28

CPC classification number: G01N33/2882 ,  C10L1/04 ,  G01T1/20 ,  C10G2300/4037 ,  C10L2200/0407 ,  C10L2200/0476 ,  C10L2290/60

Abstract: A method of monitoring renewable carbon in fuel streams in a refinery or blend facility while co-processing a bio-feedstock with a fossil feedstock or blending a renewable product with a fossil product wherein the method provides for quantification of renewable C14 carbon content to adjust the total renewable content to a targeted renewable content in situ while lowering the limit of detection.

公开(公告)号：US11905461B2

公开(公告)日：2024-02-20

申请号：US16922999

申请日：2020-07-07

Applicant: Chevron U.S.A. Inc.

Inventor： Varadarajan Dwarakanath ,  Taimur Malik ,  Lin Zuo ,  Jimin Daniel Zhou ,  Nabijan Nizamidin ,  Gregory A. Winslow ,  Reza Banki ,  Mohamad Salman

IPC: E21B43/16 ,  C09K8/60 ,  C09K8/94

CPC classification number: C09K8/602 ,  C09K8/94 ,  E21B43/166

Abstract: Disclosed are foam precursor compositions, foamed compositions, and methods of using these foamed compositions for the stimulation of unconventional reservoirs.

公开(公告)号：US20240052234A1

公开(公告)日：2024-02-15

申请号：US18488079

申请日：2023-10-17

Applicant: CHEVRON U.S.A. INC.

Inventor： Nabijan NIZAMIDIN ,  Gayani W. PINNAWALA ,  Guo-Qing TANG ,  Varadarajan DWARAKANATH ,  Gregory A. WINSLOW ,  Jordan Taylor ISBELL ,  Taimur MALIK

IPC: C09K8/584 ,  C09K8/588 ,  C09K8/60 ,  C09K8/66 ,  C09K8/68 ,  C09K8/80 ,  E21B43/20 ,  E21B43/26 ,  E21B47/11

CPC classification number: C09K8/584 ,  C09K8/588 ,  C09K8/602 ,  C09K8/665 ,  C09K8/68 ,  C09K8/80 ,  E21B43/20 ,  E21B43/26 ,  E21B47/11

Abstract: Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.

公开(公告)号：US11898094B2

公开(公告)日：2024-02-13

申请号：US17104514

申请日：2020-11-25

Applicant: Chevron U.S.A. INC.

Inventor： Nabijan Nizamidin ,  Harold C. Linnemeyer ,  Timothy P. Theriot ,  Gojko Matovic ,  Seung Han ,  Do Hoon Kim ,  Kerry K. Spilker

IPC: C09K8/62 ,  C09K8/60 ,  G01N11/04 ,  E21B43/26 ,  E21B47/00 ,  G06F30/28

CPC classification number: C09K8/62 ,  C09K8/602 ,  E21B43/26 ,  E21B47/00 ,  G01N11/04 ,  G06F30/28 ,  C09K2208/08 ,  C09K2208/28

Abstract: The present invention relates generally to systems and processes for improved drag reduction estimation and measurement and more specifically to portable drag reduction analyzers and processes for upscaling drag reduction data for a variety of field applications. A drag reduction parameter ΔB for the fluid mixture is used for determining drag reduction for a fluid mixture in an oil field or pipeline operation.

公开(公告)号：US11892580B2

公开(公告)日：2024-02-06

申请号：US17148111

申请日：2021-01-13

Applicant: Chevron U.S.A. Inc.

Inventor： Robert Lewis Little

IPC: G01V1/30 ,  G01N33/24

CPC classification number: G01V1/305 ,  G01N33/246 ,  G01V1/306

Abstract: The thickness of subsurface layers if they had remained as they were prior to compaction may be estimated by restoring the volume of void space lost during compaction. Decompacted depths below seafloor, the depths the layers would be if compaction had not occurred, may be determined for the layers. A surrogate decompaction velocity may then be determined by dividing the decompacted depths by the travel times of acoustic waves that reflect off layers within the subsurface region. The decompaction velocity may be used in post-processing of acoustic data to produce a decompacted digital representation of the subsurface region. The decompacted digital representation may be used to directly interpret the thickness of layers prior to compaction, sedimentation rates over time, fault offsets, and other phenomena distorted by compaction.

公开(公告)号：US20240037473A1

公开(公告)日：2024-02-01

申请号：US17877586

申请日：2022-07-29

Applicant: Chevron U.S.A. Inc.

Inventor： Brandon Allen Mason ,  Randy Todd Genzer ,  Andrea Richardson

IPC: G06Q10/06 ,  G06F9/451

CPC classification number: G06Q10/06316 ,  G06F9/451

Abstract: A graphical user interface provides visualization of operation tasks for a well ordered in a sequence. The graphical user interface shows different types of timing for the operation tasks, such as planned timing, estimated timing, and actual timing for the operation tasks. Different types of timing are arranged in a hierarchy so that setting one type of timing for an operation task overrides another type of timing for the operation task. Changes to timing of an operation task are automatically propagated to other operation tasks.

公开(公告)号：US20240027643A1

公开(公告)日：2024-01-25

申请号：US18358203

申请日：2023-07-25

Applicant: Chevron U.S.A. Inc.

Inventor： Chao Yan ,  Wei Wei ,  Wei Wang

IPC: G01V1/50

CPC classification number: G01V1/50 ,  G01V2210/6169

Abstract: A method for identifying an unidentified subterranean sample may include comparing values for a subset of fluid chemistry parameters associated with the unidentified subterranean sample to values of corresponding fluid chemistry parameters associated with a plurality of identified subterranean samples. The method may also include determining, based on comparing the values for the subset of fluid chemistry parameters associated with the unidentified subterranean sample to the values of the corresponding fluid chemistry parameters associated with the plurality of identified subterranean samples, an estimated value for a target parameter associated with the unidentified subterranean sample. The method may further include recategorizing the unidentified subterranean sample as being among the plurality of identified subterranean samples based on the estimated value for the target parameter.