公开(公告)号：US12044090B2

公开(公告)日：2024-07-23

申请号：US17895859

申请日：2022-08-25

Applicant: Chevron U.S.A. Inc.

Inventor： Jay Patrick Painter

IPC: E21B33/04

CPC classification number: E21B33/04

Abstract: A sleeve for protecting a lockdown screw of a wellhead assembly can include a body having an inner surface and an outer surface, wherein the body has a concave curvature, where the body is configured to be disposed within an upper portion of a recess of a component of the wellhead assembly inside of which the lockdown screw is disposed, where the concave curvature of the body is configured to match that of an inner wall of the component, and where the outer surface is configured to isolate the lockdown screw from an environment in a cavity partially formed by the inner surface when the body is disposed in the upper portion of the recess.

公开(公告)号：US12037542B2

公开(公告)日：2024-07-16

申请号：US17669043

申请日：2022-02-10

Applicant: CHEVRON U.S.A. INC.

Inventor： Robert George Shong ,  Varadarajab Dwarakanath ,  Gregory A. Winslow ,  Sophany Thach

IPC: C09K8/584 ,  C07C59/305 ,  C09K8/588 ,  E21B43/16

CPC classification number: C09K8/584 ,  C07C59/305 ,  C09K8/588 ,  E21B43/16

Abstract: The present disclosure relates to the use of a multicarboxylate, such as an alkyl alkoxy dicarboxylate, in enhanced oil recovery processes. Embodiments relate to an aqueous stream and the use thereof. The aqueous stream includes a compound having the chemical formula: R1—R2—R3, wherein R1 includes a branched or unbranched, saturated or unsaturated, cyclic or non-cyclic, hydrophobic carbon chain having an oxygen atom linking R1 and R2; R2 includes an alkoxylated chain comprising ethylene oxide, propylene oxide, butylene oxide, or a combination thereof; and R3 includes a branched or unbranched hydrocarbon chain and 2-5 —COOH or —COOM groups wherein M is a monovalent, divalent, or trivalent cation. R3 includes 2-12 carbon atoms.

公开(公告)号：US20240192389A1

公开(公告)日：2024-06-13

申请号：US18159512

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 ,  G01V1/34

CPC classification number: G01V1/282 ,  G01V1/345 ,  G01V2210/6242 ,  G01V2210/6244 ,  G01V2210/673 ,  G01V2210/74

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：US20240191594A1

公开(公告)日：2024-06-13

申请号：US18531656

申请日：2023-12-06

Applicant: Chevron U.S.A. Inc.

Inventor： Douglas Cory Arceneaux ,  Benjamin James Krane ,  Caleb Kimbrell Carroll ,  Michael James Fuller

IPC: E21B33/14 ,  C09K8/42 ,  C09K8/44 ,  C09K8/46 ,  E21B23/06

CPC classification number: E21B33/14 ,  C09K8/428 ,  C09K8/44 ,  C09K8/46 ,  E21B23/06

Abstract: A method of deploying an expandable composition in a cement top job in a well system includes identifying evidence of actual or potential gas migration within an annulus cement of the well system. Once the evidence of gas migration is identified, a first component and a second component are mixed in a mixer to form the expandable composition and the expandable composition is pumped from the mixer through a conduit to a top of cement of the annulus cement. The expandable composition expands to form an expanded composition that seals the annulus above the top of cement of the annulus cement. Cement can be added onto the expanded composition.

公开(公告)号：US20240189801A1

公开(公告)日：2024-06-13

申请号：US18344380

申请日：2023-06-29

Applicant: Chevron U.S.A. Inc.

Inventor： Xiaoying OUYANG ,  Viorel DUMA ,  Alexander KUPERMAN ,  Ibrahim UCKUNG ,  Theodorus Ludovicus Michael MAESEN ,  Axel BRAIT ,  Charles WILSON

IPC: B01J23/89 ,  B01J35/31 ,  B01J35/61 ,  B01J35/63 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00

CPC classification number: B01J23/8993 ,  B01J35/31 ,  B01J35/615 ,  B01J35/633 ,  B01J37/0045 ,  B01J37/031 ,  B01J37/04 ,  B01J37/08 ,  B01J37/20 ,  C07C5/10 ,  C10G45/00 ,  C10G47/00 ,  C10G49/00 ,  C10G2300/1055 ,  C10G2300/1074 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2300/4018 ,  C10G2300/42 ,  C10G2300/70

Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.

公开(公告)号：US20240183259A1

公开(公告)日：2024-06-06

申请号：US18437718

申请日：2024-02-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Dawit Yenesew Dagnaw ,  Yifan Li ,  Brian Paul Price ,  Nabijan Nizamidin ,  Wei Shi ,  Omar Visairo ,  Kristen Anne Belcourt ,  Leonardo F. Chaves Leal ,  Aleisha Nichole Guiler ,  Amos Sunghyun Kim ,  Neil Robert Steil Dilorenzo

IPC: E21B43/26 ,  E21B37/06 ,  E21B43/20

CPC classification number: E21B43/26 ,  E21B37/06 ,  E21B43/20

Abstract: The present invention relates generally to processes for adding a chemical composition to a produced water mixture upstream of a pad related to a well to be fracked. The added chemical composition comprises a drag reducing agent, or a biocide, or a scale inhibitor, or any combination thereof. The produced water mixture comprising the added chemical composition may then be transferred in a pipeline to the well to be fracked. This offers a number of advantages that may include, for example, reducing the footprint at the pad, improved efficacy of biocide, reduced time to transfer produced water, and/or reduced pumping time during the fracking.

公开(公告)号：US20240174525A1

公开(公告)日：2024-05-30

申请号：US18552665

申请日：2022-03-24

Applicant: CHEVRON U.S.A. INC.

Inventor： Adeola OJO

IPC: C01B39/48 ,  B01J29/70 ,  B01J29/74 ,  C07C5/27

CPC classification number: C01B39/48 ,  B01J29/7046 ,  B01J29/7492 ,  C07C5/2775 ,  C01B39/46 ,  C01P2002/72

Abstract: The present application pertains to family of new crystalline molecular sieves designated SSZ-94. Molecular sieve SSZ-94 is structurally similar to sieves falling within the MTT structure type such as SSZ-32x, SSZ-32, ZSM-23, EU-13, ISI-4, and KZ-1 family of molecular sieves. SSZ-94 is characterized as having magnesium.

公开(公告)号：US20240166935A1

公开(公告)日：2024-05-23

申请号：US18056465

申请日：2022-11-17

Applicant: Chevron U.S.A. Inc.

Inventor： Sandra Liliana Gomez-Nava

IPC: C09K8/06

CPC classification number: C09K8/06

Abstract: A drill-in fluid composition comprises a base fluid, a viscosifier, a fluid loss control agent, and a blend of calcium carbonate particles having at least two different sizes, wherein at least a portion of the blend of calcium carbonate particles are synthetic calcium carbonate particles formed from captured carbon dioxide. The blend of calcium carbonate particles can include natural calcium carbonate particles. The drill-in fluid composition is used when drilling a well through a formation.

公开(公告)号：US20240166578A1

公开(公告)日：2024-05-23

申请号：US18221806

申请日：2023-07-13

Applicant: CHEVRON U.S.A. INC.

Inventor： Xiaoying OUYANG ,  Alexander E. Kuperman ,  Huping Luo

IPC: C07C2/76 ,  B01J21/08 ,  B01J35/00 ,  B01J35/02 ,  C01B3/26

CPC classification number: C07C2/76 ,  B01J21/08 ,  B01J35/0013 ,  B01J35/023 ,  C01B3/26 ,  C01B2203/1241 ,  C07C2521/08

Abstract: The present application pertains to a methane dehydrogenation process subjecting a methane feed to a novel SiO2 catalyst under dehydrogenation conditions and producing hydrogen, ethylene, an aromatic, or any mixture thereof. In another embodiment, the present application pertains to a novel catalyst for methane dehydrogenation. The catalyst comprises amorphous particles of SiO2. The amorphous particles have a particle size with a nominal diameter of from about 5 nm to 1 cm. The amorphous particles of SiO2 comprise a Lewis acidity sufficient to activate one or more C—H bonds in methane and generate one or more methyl radicals when the catalyst is subjected to methane dehydrogenation conditions. In another embodiment, the present application pertains to method of making the novel catalyst for methane dehydrogenation.

公开(公告)号：US11988092B2

公开(公告)日：2024-05-21

申请号：US17065064

申请日：2020-10-07

Applicant: Halliburton Energy Services, Inc. ,  Chevron U.S.A. Inc. ,  SDG LLC

Inventor： William M. Moeny

IPC: E21B7/15 ,  E21B10/00

CPC classification number: E21B7/15 ,  E21B10/00

Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a bottom-hole assembly having a pulse-generating circuit and a switching circuit within the pulse-generating circuit, the switching circuit comprising a solid-state switch. The downhole drilling system may also include a drill bit having a first electrode and a second electrode electrically coupled to the pulse-generating circuit to receive a pulse from the pulse-generating circuit.