公开(公告)号：US11719843B2

公开(公告)日：2023-08-08

申请号：US16840551

申请日：2020-04-06

Applicant: CHEVRON U.S.A. INC.

Inventor： Stephen Allan Horne

IPC: G01V1/50 ,  G01V1/30 ,  G01V5/12 ,  G01V11/00

CPC classification number: G01V1/50 ,  G01V1/306 ,  G01V5/12 ,  G01V11/002 ,  G01V2210/47 ,  G01V2210/626

Abstract: Embodiments of determining a vertically transverse isotropy (VTI) anisotropy along a horizontal section of a wellbore drilled into a formation are provided. One embodiment comprises determining elastic constants C11, C44, and C66 of the horizontal section and determining a vertical compressional slowness of the horizontal section corresponding to an elastic constant C33 of the horizontal section using a model with a condition. The model is built using second sonic log data and second density log data of the vertical wellbore. The condition is that the shear slowness (DTS) of the vertical wellbore is equal to the vertically polarized shear slowness (DTSV) of the horizontal section. The embodiment further comprises determining a VTI anisotropy along the horizontal section using the elastic constants C11, C44, C66, and C33 of the horizontal section.

公开(公告)号：US20230243992A1

公开(公告)日：2023-08-03

申请号：US18003449

申请日：2020-07-01

Applicant: Chevron U.S.A. Inc.

Inventor： Paul Montgomery ,  Kenneth Thomas Ratcliffe ,  Eliza Mathia ,  Marcus Oliver Wigand

IPC: G01V1/46 ,  G01V1/50 ,  G01N33/24 ,  E21B47/04

CPC classification number: G01V1/46 ,  G01V1/50 ,  G01N33/24 ,  E21B47/04

Abstract: A method comprises determining stratigraphic correlations between two or more sets of stratigraphic measurements. Each set of stratigraphic measurements is obtained from a different lateral well in a region.

公开(公告)号：US20230235660A1

公开(公告)日：2023-07-27

申请号：US18159626

申请日：2023-01-25

Applicant: Chevron U.S.A. Inc.

Inventor： Han-Young PARK ,  Baosheng LIANG ,  Yunhui TAN

IPC: E21B47/022

CPC classification number: E21B47/022 ,  E21B2200/20 ,  E21B2200/22

Abstract: A system and method for uncertainty estimation of reservoir parameters in unconventional reservoirs using a physics-guided convolutional neural network to generate a plurality of reservoir models, a data analysis step, and an uncertainty step is disclosed. The method is a computationally efficient method to estimate uncertainties in models of unconventional reservoirs.

公开(公告)号：US20230235646A1

公开(公告)日：2023-07-27

申请号：US18100775

申请日：2023-01-24

Applicant: Chevron U.S.A. Inc.

Inventor： Wei Wang ,  Wei Wei ,  Chao Yan ,  Gregory A. Winslow ,  Lauren N. DeVoe ,  Baosheng Liang

IPC: E21B37/06 ,  E21B43/26

CPC classification number: E21B37/06 ,  E21B43/26 ,  E21B49/02

Abstract: A method for evaluating and optimizing scale management at a subsurface for improved well performance may include performing multiple first tests, where each first test combines a first fluid with a second fluid, wherein the first fluid comprises a concentration of a scale inhibitor and a chemistry of additional fluid components. The method may also include identifying an optimal mixture of the first fluid among the first tests, where the optimal mixture comprises a minimum concentration of the scale inhibitor that reduces scale deposition. The method may further include performing a second test that combines the first fluid with the scale inhibitor, the second fluid, and rock. The method may also include evaluating a concentration of the scale inhibitor in aqueous phase after a period of time after initiating the second test. The method may further include identifying a target fluid for use in a field operation at the subsurface.

公开(公告)号：US11708277B2

公开(公告)日：2023-07-25

申请号：US17372660

申请日：2021-07-12

Applicant: CHEVRON U.S.A. INC.

Inventor： Stacey Ian Zones

IPC: C01B39/48

CPC classification number: C01B39/48

Abstract: A method is described for the synthesis of aluminosilicate CHA framework type molecular sieves at ambient pressure via interzeolite conversion from FAU framework type zeolites.

公开(公告)号：US20230204815A1

公开(公告)日：2023-06-29

申请号：US17562629

申请日：2021-12-27

Applicant: CHEVRON U.S.A. INC.

Inventor： Shane James Prochnow ,  Benjamin Rodolphe Cormier ,  Vahid Tohidi ,  Michelle Wan

IPC: G01V99/00 ,  G01V11/00 ,  G06N20/20

CPC classification number: G01V99/005 ,  G01V11/002 ,  G06N20/20

Abstract: Methods, systems, and non-transitory computer readable media for identifying type curve regions as a function of position in a region of interest are disclosed. Exemplary implementations may include: obtaining a spatial clustering model from the non-transitory storage medium; obtaining well data from the non-transitory storage medium; obtaining production parameter data from the non-transitory storage medium; and delineating each of the type curve regions in the region of interest by applying the spatial clustering model to the well data and the production parameter data.

公开(公告)号：US20230191381A1

公开(公告)日：2023-06-22

申请号：US17999535

申请日：2021-05-14

Applicant: Chevron U.S.A. Inc.

Inventor： Bi-Zeng ZHAN ,  Ann Jia-Bao LIANG ,  Theodorus Ludovicus Michael MAESEN

IPC: B01J29/80 ,  B01J21/12 ,  B01J29/16 ,  B01J29/78 ,  B01J23/888 ,  B01J31/02 ,  B01J37/00 ,  B01J37/08 ,  B01J37/02 ,  C10G47/20

CPC classification number: B01J29/80 ,  B01J21/12 ,  B01J29/166 ,  B01J29/7815 ,  B01J29/7869 ,  B01J23/888 ,  B01J31/0202 ,  B01J37/0018 ,  B01J37/08 ,  B01J37/0213 ,  B01J37/0203 ,  B01J37/0236 ,  C10G47/20 ,  B01J2029/062

Abstract: The process comprises hydrocracking a hydrocarbon feed in a single stage. The catalyst comprises a base impregnated with metals from Group 6 and Groups 8 through 10 of the Periodic Table. The base of the catalyst used in the present hydrocracking process comprises alumina, an amorphous silica-alumina (ASA) material, a USY zeolite, optionally a beta zeolite, and zeolite ZSM-12.

公开(公告)号：US11680210B2

公开(公告)日：2023-06-20

申请号：US17518663

申请日：2021-11-04

Applicant: CHEVRON U.S.A. INC.

Inventor： Tengfei Liu ,  Joel Edward Schmidt

IPC: C10G3/00 ,  B01J29/40 ,  B01J38/02 ,  B01J37/10 ,  B01J29/08 ,  B01J27/16 ,  B01J29/06

CPC classification number: C10G3/49 ,  B01J27/16 ,  B01J29/08 ,  B01J29/40 ,  B01J37/10 ,  B01J38/02 ,  C10G3/57 ,  B01J2029/062 ,  B01J2229/16 ,  C10G2300/1014 ,  C10G2300/1018 ,  C10G2300/305 ,  C10G2400/02 ,  C10G2400/20 ,  C10G2400/30

Abstract: A process is provided for the catalytic cracking of a glyceride oil feedstock with a catalyst composition containing a deactivated phosphorus-containing ZSM-5 light olefins selective additive.

公开(公告)号：US20230184097A1

公开(公告)日：2023-06-15

申请号：US18079052

申请日：2022-12-12

Applicant: CHEVRON U.S.A. INC.

Inventor： Lokendra JAIN

IPC: E21B47/11 ,  G01N33/28

CPC classification number: E21B47/11 ,  G01N33/2823

Abstract: In accordance with some embodiments, a method of determining a flow profile for a wellbore using unique particulate tracers is disclosed. The unique particulate tracers are pumped only in a fraction of each stage such that a substantial portion of the unique particulate tracers are placed in a near wellbore region of the subterranean formation proximate to the wellbore.

公开(公告)号：US20230183562A1

公开(公告)日：2023-06-15

申请号：US17891745

申请日：2022-08-19

Applicant: CHEVRON U.S.A. INC.

Inventor： Samiha Said Elsayed MORSY ,  Nabijan NIZAMIDIN ,  Taimur MALIK ,  Mohsen S. TAGAVIFAR

IPC: C09K8/94 ,  C09K8/60 ,  C09K8/594 ,  C09K8/588 ,  E21B33/138 ,  E21B43/26 ,  C09K8/584 ,  C09K8/66 ,  C09K8/74 ,  E21B43/16 ,  E21B43/267 ,  E21B43/17 ,  E21B43/25

CPC classification number: C09K8/94 ,  C09K8/602 ,  C09K8/594 ,  C09K8/588 ,  E21B33/138 ,  E21B43/26 ,  C09K8/584 ,  C09K8/665 ,  C09K8/74 ,  E21B43/162 ,  E21B43/267 ,  E21B43/166 ,  E21B43/17 ,  E21B43/255 ,  E21B2200/20

Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.