公开(公告)号：US20230400598A1

公开(公告)日：2023-12-14

申请号：US17826400

申请日：2022-05-27

Applicant: Chevron U.S.A. Inc.

Inventor： Mason C. Edwards ,  Joshua S. Hoskinson ,  Sandra C. Saldana ,  Donald Neal Burch

IPC: G01V1/50 ,  G06N20/00

CPC classification number: G01V1/50 ,  G01V2210/60 ,  G06N20/00

Abstract: A reference curve may be used as the goal for alignment when depth shifting one or more target well logs. Traditionally the reference curve has been measured data, and is usually of the same measurement type as the well log for shifting when performed algorithmically. The reference curve may be generated by a weak learner machine learning model. The weak learner machine learning model may preserve shape characteristics and depth information of one or more input curves in the reference curve. Depth shifting of a target well log may be performed by iteratively using sliding correlation windows of differing sizes.

公开(公告)号：US11841479B2

公开(公告)日：2023-12-12

申请号：US16945517

申请日：2020-07-31

Applicant: CHEVRON U.S.A. INC. ,  THE TEXAS A&M UNIVERSITY SYSTEM

Inventor： Shuxing Cheng ,  Zhao Zhang ,  Kellen Leigh Gunderson ,  Reynaldo Cardona ,  Zhangyang Wang ,  Ziyu Jiang

IPC: G01V99/00 ,  G06F111/10 ,  G06F18/214

CPC classification number: G01V99/005 ,  G06F18/214 ,  G06F2111/10 ,  G06F2218/08

Abstract: Systems and methods are disclosed for identifying subsurface features as a function of position in a subsurface volume of interest. Exemplary implementations may include obtaining target subsurface data; obtaining a conditioned subsurface feature model; applying the conditioned subsurface feature model to the target subsurface data, which may include generating convoluted target subsurface data by convoluting the target subsurface data; generating target subsurface feature map layers by applying filters to the convoluted target subsurface data; detecting potential target subsurface features in the target subsurface feature map layers; masking the target subsurface features; and estimating target subsurface feature data by linking the masked subsurface features to the target subsurface feature data.

公开(公告)号：US20230393863A1

公开(公告)日：2023-12-07

申请号：US17832285

申请日：2022-06-03

Applicant: CHEVRON U.S.A. INC.

Inventor： MATTHEW SCOTT BOLEN

IPC: G06F9/451 ,  G06F3/04817 ,  G06F3/0486

CPC classification number: G06F9/451 ,  G06F3/04817 ,  G06F3/0486

Abstract: The present disclosure relates generally to a system and method for rearranging a first system of software applications into a second system of software applications. The system includes a user device, a network, a data storage unit, and a server. The user device can display a first system of applications. The user can offer a number of rearrangements by clicking and dragging the applications and connections points to their desired positions. A predictive model can produce a second system of applications based on these rearrangements.

公开(公告)号：US20230383618A1

公开(公告)日：2023-11-30

申请号：US18318356

申请日：2023-05-16

Applicant: Chevron U.S.A. Inc.

Inventor： Kyle Tate Bouthilet ,  Cody Jamail Leathers

IPC: E21B33/14 ,  E21B34/06

CPC classification number: E21B33/14 ,  E21B34/063

Abstract: A system for cementing casing using reverse circulation, where the system can include a casing string having multiple casing pipes and a burst disc sub, where the burst disc sub includes a burst disc that is disposed within a cavity formed in the casing string and prevents unwanted flow up the cavity while running casing, where the burst disc, when exposed to a downward force in the cavity exceeding a threshold value, is configured to break apart to allow flow of casing fluid under pressure from the upper portion to the lower portion of the cavity through the burst disc sub, and where the burst disc sub is configured to allow for reverse flow of the casing fluid therethrough when a cement slurry is injected down an annulus formed between the casing string and a formation wall of a wellbore.

公开(公告)号：US11826721B2

公开(公告)日：2023-11-28

申请号：US17533838

申请日：2021-11-23

Applicant: Chevron U.S.A. Inc. ,  Triad National Security, LLC

Inventor： Bi-Zeng Zhan ,  Zunqing He ,  Hoon Taek Chung ,  Piotr Zelenay

IPC: B01J20/02 ,  B01J20/20 ,  B01J20/28 ,  B01J20/30 ,  B01J20/32 ,  C10G25/00

CPC classification number: B01J20/20 ,  B01J20/0233 ,  B01J20/28007 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01J20/3295 ,  C10G25/003 ,  C10G2300/1025 ,  C10G2300/1051 ,  C10G2300/1055 ,  C10G2300/202 ,  C10G2300/207 ,  C10G2300/80

Abstract: Metal nanoparticle-deposited, nitrogen-doped carbon adsorbents are disclosed, along with methods of removing sulfur compounds from a hydrocarbon feed stream using these adsorbents.

公开(公告)号：US20230373883A1

公开(公告)日：2023-11-23

申请号：US18116747

申请日：2023-03-02

Applicant: Chevron U.S.A. Inc.

Inventor： Bong Kyu CHANG ,  Hye-Kyung Cho TIMKEN ,  Michelle K. Young

IPC: C07C2/22 ,  C10G50/02

CPC classification number: C07C2/22 ,  C10G50/02 ,  C07C2527/06 ,  C07C2527/125 ,  C07C2527/122 ,  C07C2527/128

Abstract: A process for producing renewable distillate-range hydrocarbons is provided. The process includes dehydrating a renewable C2-C6 alcohol feedstock to produce an olefin, oligomerizing the olefin the presence of a halometallate ionic liquid catalyst to produce an oligomer product and hydrogenating the oligomer product or fractions thereof to produce saturated distillate-range hydrocarbons.

公开(公告)号：US11822030B2

公开(公告)日：2023-11-21

申请号：US17654630

申请日：2022-03-14

Applicant: Chevron U.S.A. Inc.

Inventor： Jinsong Chen ,  Huafeng Liu ,  Andrey Hanan Shabelansky ,  Cory James Hoelting ,  Min Yang ,  Ying Tan ,  Maisha Lara Amaru

IPC: G01V1/34 ,  G01V1/28 ,  G06N7/01

CPC classification number: G01V1/345 ,  G01V1/282 ,  G06N7/01 ,  G01V2210/60 ,  G01V2210/74

Abstract: A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.

公开(公告)号：US20230366309A1

公开(公告)日：2023-11-16

申请号：US18027878

申请日：2021-11-10

Applicant: Chevron U.S.A. Inc.

Inventor： Robert Chadwick HOLMES ,  Fabien J. LAUGIER

IPC: E21B47/022

CPC classification number: E21B47/022 ,  E21B2200/20

Abstract: A well may be selected from a group of wells. Multiple scenarios of boundary locations within the selected well may be determined based on propagation of boundaries from other wells to the selected well. A visual representation of the multiple scenarios of boundary locations within the selected well may be provided based on spatial arrangement of the wells within the group of wells. A visual representation of the spatial arrangement of the wells within the group of wells may be provided.

公开(公告)号：US20230312439A1

公开(公告)日：2023-10-05

申请号：US18128429

申请日：2023-03-30

Applicant: Chevron U.S.A. Inc.

Inventor： Hye-Kyung C. TIMKEN

IPC: C07C4/22 ,  C10G1/00 ,  C08J11/12

CPC classification number: C07C4/22 ,  C10G1/002 ,  C08J11/12 ,  C10G2400/02 ,  C10G2400/04 ,  C10G2400/06 ,  C10G2400/08 ,  C10G2300/1003 ,  C10G2300/205 ,  C10G2300/202 ,  C10G2300/308 ,  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 stable 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 crude unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the crude unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed to a dehydrogenation unit to produce additional propylene. Product streams from the crude unit can also be passed to a hydrocracking unit, with a recovered heavy fraction then being passed to an isomerization dewaxing unit to prepare base oil.

公开(公告)号：US20230288605A1

公开(公告)日：2023-09-14

申请号：US17654633

申请日：2022-03-14

Applicant: Chevron U.S.A. Inc.

Inventor： Huafeng Liu ,  Andrey Hanan Shabelansky ,  Jinsong Chen

IPC: G01V99/00 ,  G01V1/30 ,  G01V1/40

CPC classification number: G01V99/005 ,  G01V1/301 ,  G01V1/40

Abstract: A method is described for estimating depth uncertainty including receiving seismic data, a reference model, and trial model realizations; generating realization gathers from the trial model realizations; generating reference gathers from the reference model; determining a reference data fit based on the reference gathers and a data fit for trial models based on the realization gathers; selecting refined models from the trial model realizations based on the reference data fit, the data fit for trial models, and a data fit tolerance criterion; and calculating depth uncertainty based on statistics of the refined models. The method may be executed by a computer system.