公开(公告)号：US20240084692A1

公开(公告)日：2024-03-14

申请号：US17941733

申请日：2022-09-09

Applicant: Chevron U.S.A. Inc.

Inventor： Xiaorui Guan ,  Wangming Lu

IPC: E21B47/007 ,  E21B17/01 ,  E21B33/035 ,  E21B47/001

CPC classification number: E21B47/007 ,  E21B17/012 ,  E21B33/0355 ,  E21B47/001

Abstract: Current profile of water (e.g., ocean) around a riser connected to a wellhead may be measured and used to determine integrated current load on the riser at any given moment in time. The integrated current load may be used to estimate the wellhead fatigue damage rate at that moment in time. The estimated wellhead fatigue damage rate may be used to make operational decisions for the well.

公开(公告)号：US20240084204A1

公开(公告)日：2024-03-14

申请号：US18263123

申请日：2022-01-26

Applicant: CHEVRON U.S.A. INC.

Inventor： Horacio TREVINO ,  Minghui ZHANG ,  Guan-Dao LEI ,  Thomas Ralph FARRELL

IPC: C10G45/48 ,  C10G45/60 ,  C10G65/12

CPC classification number: C10G45/48 ,  C10G45/60 ,  C10G65/12 ,  C10G2300/302 ,  C10G2300/308 ,  C10G2400/10

Abstract: An improved process for making a bright stock base oil from a base oil feedstream comprising an atmospheric resid feedstock, and, optionally, a base oil feedstock, via hydroprocessing. The process generally involves subjecting a base oil feedstream comprising the atmospheric resid to hydrocracking and dewaxing steps, and optionally to hydrofinishing, to produce base oil product(s) including a bright stock grade base oil product having a viscosity of at least about 22 cSt at 100° C. The invention is useful to make heavy grade base oil products such as bright stock, as well as Group II and/or Group III/III+ base oils.

公开(公告)号：US20240076565A1

公开(公告)日：2024-03-07

申请号：US18262317

申请日：2022-01-18

Applicant: CHEVRON U.S.A. INC.

Inventor： Yihua ZHANG ,  Guan-Dao LEI

IPC: C10G67/04 ,  B01J29/74 ,  C10G45/62 ,  C10G45/64 ,  C10G65/04

CPC classification number: C10G67/0418 ,  B01J29/7461 ,  C10G45/62 ,  C10G45/64 ,  C10G65/043 ,  C10G2300/1022 ,  C10G2300/304 ,  C10G2400/10

Abstract: Described are processes to produce base oils with one more improved properties, e.g., lower aromatics, economically and/or efficiently. In some embodiments the processes comprise a step that reduces the amount of residual refractory sulfur compounds prior to or simultaneous with a hydrofinishing step which advantageously provides base oils with lower aromatics than comparable processes.

公开(公告)号：US20240061146A1

公开(公告)日：2024-02-22

申请号：US18035171

申请日：2021-11-10

Applicant: Chevron U.S.A. Inc.

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

IPC: G01V99/00

CPC classification number: G01V99/00

Abstract: A group of wells may be located within a region of interest. Multiple scenarios of boundary locations within a group of wells may be obtained. A top-and-base boundary pair, defining a package of interest, may be identified within the individual scenarios of boundary locations. A subsurface property of the package of interest within the individual scenarios of boundary locations may be determined, and the subsurface property of the package of interest within the individual scenarios of boundary locations may be used to determine a subsurface characteristic of the region of interest.

公开(公告)号：US20240047017A1

公开(公告)日：2024-02-08

申请号：US17882284

申请日：2022-08-05

Applicant: CHEVRON U.S.A. INC.

Inventor： Estrella Rogel ,  Toni Miao ,  Eddy Lee ,  Kyle Hench

IPC: G16C20/30 ,  G01N31/16 ,  G01N21/3577 ,  G01N21/359 ,  G01N33/28

CPC classification number: G16C20/30 ,  G01N31/16 ,  G01N21/3577 ,  G01N21/359 ,  G01N33/2823

Abstract: The present disclosure advantageously refers to systems and methods for predicting an oil mixture's blend compatibility without mixing the components and/or without performing direct blend testing. The techniques described use a correlation between near infrared spectroscopic information, asphaltene solubility parameter Ra, and maltene solubility parameter Po to accurately predict blend compatibility using the equation P=Po(blend)/Ra(blend). A P≥1 indicates the blend is compatible. These techniques are useful in, for example, refineries to predict and therefore reduce or eliminate fouling due to asphaltene deposits.

公开(公告)号：US20240026749A1

公开(公告)日：2024-01-25

申请号：US18256915

申请日：2021-12-09

Applicant: Chevron Australia Pty Ltd ,  Chevron U.S.A. Inc.

Inventor： Paul Michael Benet ,  Michael James Fuller ,  Douglas Cory Arceneaux ,  Eduardo Martinez ,  George Nabil Farag

IPC: E21B33/138 ,  C09K8/44 ,  C09K8/42

CPC classification number: E21B33/138 ,  C09K8/44 ,  C09K8/426

Abstract: A deployment system for deploying a polymer grout system includes a first conduit line for conveying an isocyanate component, a second conduit line for conveying an organic polyol component, and a mixer for mixing the isocyanate component and the organic polyol component to form an expandable polymer grout system that is deployed to a target location associated with a wellbore. The deployment system can include a tailpipe and/or bridge plug for directing the expandable polymer grout system to the target location. The disclosure also includes methods of using the foregoing deployment system.

公开(公告)号：US20240025019A1

公开(公告)日：2024-01-25

申请号：US17867806

申请日：2022-07-19

Applicant: Chevron U.S.A. Inc.

Inventor： Albert E. Butterfield, IV ,  Jason Frederick Riede

IPC: B25B11/02 ,  F17C13/02

CPC classification number: B25B11/02 ,  F17C13/02

Abstract: An alignment tool is used to install an instrument onto a vessel. The alignment tool includes a semicylindrical body having an inner surface, an outer surface, a process end surface, and an instrument end surface. The inner surface comprises a process bearing surface, an instrument bearing surface, and a ring bearing disposed between the process bearing surface and the instrument bearing surface. The ring bearing comprises a first fastener aperture, a second fastener aperture, and a ring bearing surface having an alignment feature.

公开(公告)号：US11878260B1

公开(公告)日：2024-01-23

申请号：US17877929

申请日：2022-07-30

Applicant: Chevron U.S.A. Inc.

Inventor： Huping Luo

IPC: B01D3/32 ,  C10G7/00 ,  B01D3/18

CPC classification number: B01D3/32 ,  C10G7/00 ,  B01D3/18

Abstract: A phase separation assembly includes a stand pipe configured to be located at a bottom of a distillation column, the stand pipe for directing a liquid phase of a hydrocarbon fluid through a bottom outlet to a heating assembly; a return conduit configured to direct heated hydrocarbon fluid from the heating assembly into the distillation column; a ring baffle configured to be located within the distillation column above the return conduit; and a horizontal plate configured to be disposed above the stand pipe. The ring baffle directs the heated hydrocarbon fluid around the inner circumferential wall of the distillation column so that vapor and liquid phases can separate. Weir features on the ring baffle can facilitate separation of vapor and liquid flows of the hydrocarbon.

公开(公告)号：US20240010928A1

公开(公告)日：2024-01-11

申请号：US18349300

申请日：2023-07-10

Applicant: Chevron U.S.A. Inc.

Inventor： Joel E. SCHMIDT ,  Tengfei LIU ,  Hye-Kyung C. TIMKEN

IPC: C10G11/05 ,  C07C4/06 ,  C08J11/10 ,  B01D3/14

CPC classification number: C10G11/05 ,  C07C4/06 ,  C08J11/10 ,  B01D3/14 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/08 ,  C10G2300/1003 ,  C10G2300/1014 ,  C10G2300/1018 ,  C07C2529/12 ,  C07C2529/40 ,  C08J2323/12

Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a blend of a bio feedstock 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 FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polypropylene.

公开(公告)号：US20240010583A1

公开(公告)日：2024-01-11

申请号：US18349288

申请日：2023-07-10

Applicant: Chevron U.S.A. Inc.

Inventor： Joel E. SCHMIDT ,  Tengfei LIU ,  Hye-Kyung C. TIMKEN

IPC: C07C4/06 ,  C08F10/02 ,  C07C7/04

CPC classification number: C07C4/06 ,  C08F10/02 ,  C07C7/04

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 a bio feedstock 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 FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and can be passed on to make polyethylene.