公开(公告)号：US11851987B2

公开(公告)日：2023-12-26

申请号：US17547846

申请日：2021-12-10

Applicant: Chevron U.S.A. Inc.

Inventor： Patrick James Zimmerman, Sr. ,  Robert Sword Avent ,  Harold Gordon Riordan

IPC: E21B34/14 ,  E21B34/06

CPC classification number: E21B34/14 ,  E21B34/063

Abstract: An obstruction relief tool can include a plurality of walls that includes an inner wall, where the inner wall forms a cavity along a length of the inner wall. The obstruction relief tool can also include a chamber disposed between the plurality of walls, where the chamber has a proximal end and a distal end. The obstruction relief tool can further include an actuation device that is configured to actuate when an obstruction is within the cavity, where the actuation device, when actuated, is configured to open a first aperture in the inner wall that leads to the proximal end of the chamber, where the distal end of the chamber leads to a second aperture in the inner wall, where the first aperture is adjacent to the cavity above the obstruction, and where the second aperture in the inner wall is adjacent to the cavity below the obstruction.

公开(公告)号：US20230382744A1

公开(公告)日：2023-11-30

申请号：US18325228

申请日：2023-05-30

Applicant: Chevron U.S.A. Inc.

Inventor： Stacey I. Zones ,  Cong-Yan Chen

IPC: C01B33/26 ,  B01J29/12 ,  C10G35/095 ,  B01J37/20

CPC classification number: C01B33/2853 ,  B01J29/126 ,  C10G35/095 ,  B01J37/20 ,  C01P2002/72 ,  C10G2300/70

Abstract: A novel synthetic crystalline borongermanosilicate molecular sieve material, designated boron SSZ-117x, is provided. The boron SSZ-117x can be synthesized using N,N,N,3,5-pentamethyladamantan-1-ammonium cations as a structure directing agent. The synthesis employs a boron pathway to achieve the boron molecular sieve. The boron SSZ-117x may be used in organic compound conversion reactions, such as reforming, and/or sorptive processes.

公开(公告)号：US11828152B2

公开(公告)日：2023-11-28

申请号：US17231391

申请日：2021-04-15

Applicant: Chevron U.S.A. Inc.

Inventor： Robert Neil Trotter ,  Caleb Kimbrell Carroll ,  Harold Gordon Riordan ,  Leonardo F. Chaves Leal ,  Matthew David Sonnier ,  Jonathon Donald Fisher ,  Harry Martin Fernau ,  John Thomas Lattal ,  Amos Sunghyun Kim

IPC: E21B43/267 ,  E21B43/26 ,  E21B21/06

CPC classification number: E21B43/267 ,  E21B21/065 ,  E21B43/2607

Abstract: The present disclosure provides methods and systems for hydrofracturing processes utilizing native drilling cuttings to enhance wellbore permeability. The native drilling cuttings are obtained during drilling operations and may be used in hydrofracturing applications without further grinding or processing. The native drilling cuttings can be combined into a slurry and injected into a well for the hydrofracturing application. In some cases, the native drilling cuttings are dried before combining them with the slurry.

公开(公告)号：US20230357030A1

公开(公告)日：2023-11-09

申请号：US17739301

申请日：2022-05-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Christopher Michael LEW

IPC: C01B39/06

CPC classification number: C01B39/06

Abstract: Methods are provided for preparing molecular sieves CIT-13 and CIT-15 having aluminum incorporated into the framework structures.

公开(公告)号：US20230351079A1

公开(公告)日：2023-11-02

申请号：US18027858

申请日：2021-11-10

Applicant: Chevron U.S.A. Inc.

Inventor： Robert Chadwick HOLMES ,  Fabien J. LAUGIER ,  Ashley D. HARRIS ,  Morgan David SULLIVAN

IPC: G06F30/28 ,  E21B49/00 ,  E21B41/00

CPC classification number: G06F30/28 ,  E21B41/00 ,  E21B49/00

Abstract: An intermediary well may be selected for a group of wells. The intermediary well may be used as an origin point from which branching wells paths are generated to connect the group of wells through the intermediary well. A shortest path between the intermediary well and the group of wells along the branching well paths may be identified, and the group of wells may be aligned along the shortest path. Boundaries of the intermediary well may be propagated to the aligned group of wells to establish correlation between segments of the intermediary well and segments of the aligned group of wells.

公开(公告)号：US20230348342A1

公开(公告)日：2023-11-02

申请号：US18128350

申请日：2023-03-30

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung C. TIMKEN

IPC: C07C4/22 ,  C10G1/00 ,  C10M177/00 ,  C08J11/12 ,  C10M101/02

CPC classification number: C07C4/22 ,  C08J11/12 ,  C10G1/002 ,  C10M101/02 ,  C10M177/00 ,  C08J2323/06 ,  C10G2300/1003 ,  C10G2300/202 ,  C10G2300/205 ,  C10G2300/308 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/06 ,  C10G2400/08 ,  C10G2400/10 ,  C10M2203/1006 ,  C10N2070/00

Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery hydrocracking unit. A liquid petroleum gas C3-C4 olefin/paraffin mixture, and optionally naphtha, is recovered from the hydrocracking unit and passed to a steam cracker to make ethylene. A heavy fraction can also be recovered from the hydrocracking unit and passed to an isomerization dewaxing unit to prepare base oil.

公开(公告)号：US20230341576A1

公开(公告)日：2023-10-26

申请号：US18159536

申请日：2023-01-25

Applicant: Chevron U.S.A. Inc. ,  CHEVRON CANADA LIMITED

Inventor： Andrey H. Shabelansky ,  Kurt T. Nihei ,  Dimitri Bevc ,  Gian Luigi Fradelizio ,  Sinead M. Tracey

IPC: G01V1/28 ,  G01V1/18 ,  G01V1/34

CPC classification number: G01V1/288 ,  G01V1/282 ,  G01V1/189 ,  G01V1/345

Abstract: A method is described for monitoring a stimulated reservoir volume (SRV) including receiving simulation parameters, performing 3D fully coupled quasi-static poro-elastic finite difference modeling using the simulation parameters, wherein the 3D fully coupled quasi-static poro-elastic finite difference modeling is based on a rescaling of solid rock and fluid flow density parameters and generates simulated temporal quasi-static stresses, and pore pressure. In addition, simulated stresses may be used for performing calculation of the 3D rotation of the simulated stresses to principal directions; performing calculation of the temporal 3D Mohr-Coulomb (MC) failure criteria from the calculated principal stresses and the simulated pore pressure for all or selected time steps; and displaying the computed temporal MC failure criteria results on a graphical display. The method may also be used in time-lapse monitoring of the reservoir for microseismic depletion delineation.

公开(公告)号：US20230338934A1

公开(公告)日：2023-10-26

申请号：US18338224

申请日：2023-06-20

Applicant: CHEVRON U.S.A. INC.

Inventor： Adeola Florence OJO ,  Yihua ZHANG ,  Guan-Dao LEI ,  Howard S. LACHEEN

IPC: B01J29/80 ,  C10G45/64 ,  B01J37/04 ,  B01J29/74 ,  B01J37/03

CPC classification number: B01J29/80 ,  B01J29/74 ,  B01J29/7446 ,  B01J29/7461 ,  B01J37/031 ,  B01J37/04 ,  C10G45/64 ,  B01J2029/062

Abstract: The present application pertains to family of new crystalline molecular sieves designated SSZ-92. Molecular sieve SSZ-92 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves and is characterized as having magnesium.

公开(公告)号：US20230332037A1

公开(公告)日：2023-10-19

申请号：US17920973

申请日：2021-04-26

Applicant: CHEVRON U.S.A. INC.

Inventor： Gayani W. PINNAWALA ,  Sujeewa S. PALAYANGODA ,  Gregory A. WINSLOW ,  Varadarajan DWARAKANATH

IPC: C09K8/584 ,  C09K8/588 ,  C09K8/60 ,  C09K8/68 ,  C07C309/22

CPC classification number: C09K8/584 ,  C07C309/22 ,  C09K8/588 ,  C09K8/604 ,  C09K8/68 ,  E21B43/26

Abstract: The present disclosure is directed to polyanionic surfactants, surfactant mixtures, compositions derived thereof, and uses thereof such as in oil and gas operations. Methods of making polyanionic surfactants are also described.

公开(公告)号：US11787701B2

公开(公告)日：2023-10-17

申请号：US17382441

申请日：2021-07-22

Applicant: CHEVRON U.S.A. INC.

Inventor： Kandaswamy Jothimurugesan ,  Hye-Kyung Timken

IPC: C01F7/34 ,  B01J21/12 ,  B01J35/10 ,  B01J37/03 ,  B01J37/04

CPC classification number: C01F7/34 ,  B01J21/12 ,  B01J35/1019 ,  B01J35/1047 ,  B01J35/1061 ,  B01J37/031 ,  B01J37/04 ,  C01P2002/72 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16

Abstract: A process of making a silica-alumina composition having improved properties is provided. The process includes (a) mixing an aqueous solution of a silicon compound and an aqueous solution of an aluminum compound and an acid, while maintaining a pH of the mixed solution in a range of 1 to 3, and obtaining an acidified silica-alumina sol; (b) adding an aqueous solution of a base precipitating agent to the acidified silica-alumina sol to a final pH in a range of 5 to 8, and co-precipitating a silica-alumina slurry, wherein the base precipitating agent is selected from ammonium carbonate, ammonium bicarbonate, and any combination thereof; (c) optionally, hydrothermally aging the silica-alumina slurry to form a hydrothermally aged silica-alumina slurry; and (d) recovering a precipitate solid from the silica-alumina slurry or the hydrothermally aged silica-alumina slurry, wherein the precipitate solid comprises the silica-alumina composition.