公开(公告)号：US20220204873A1

公开(公告)日：2022-06-30

申请号：US17137928

申请日：2020-12-30

Applicant: Chevron U.S.A. Inc.

Inventor： Ling Jiao ,  Bi-Zeng Zhan ,  Don Bushee ,  Theodorus Ludovicus Michael Maesen ,  Hye-Kyung Timken ,  Richard Dutta ,  Jay Parekh

IPC: C10G65/12 ,  C10G47/14 ,  C10G7/00

Abstract: Provided is a hydrocracking process with a recycle loop for converting a petroleum feed to lower boiling products, which process comprises reacting a stream over a non-zeolite noble metal catalyst at a temperature of about 650° F. (343° C.) or less in a reactor positioned in the recycle loop of the hydrocracking reactor.

公开(公告)号：US11372131B2

公开(公告)日：2022-06-28

申请号：US16688204

申请日：2019-11-19

Applicant: CHEVRON U.S.A. INC.

Inventor： Elizabeth Anna Edwards Johnson ,  Cheryl Peyser ,  Anthony Gary ,  Lawrence Andrew Febo ,  Chaoshun Hu

IPC: G06F17/10 ,  G01V99/00 ,  G06F30/20 ,  G01V1/30 ,  G01V1/32

Abstract: Systems and methods are disclosed for associating a standard numerical age to an attribute of geological data from disparate locations. Exemplary implementations may include generating a standardized geological age dataset by standardizing geological data to a global reference age based on a dimension of the geological data, a local geotemporal marker, and a dimension to age function; and storing the standardized geological age dataset.

公开(公告)号：US11360230B2

公开(公告)日：2022-06-14

申请号：US16705013

申请日：2019-12-05

Applicant: Chevron U.S.A. Inc.

Inventor： Siwei Li ,  Guojian Shan ,  Yue Wang

IPC: G01V1/36 ,  G01V1/28 ,  G01V1/30 ,  G06F17/16

Abstract: A method is described for seismic inversion including receiving a processed seismic image and an enhanced seismic image representative of a subsurface volume of interest; forward modeling the processed seismic image and the enhanced seismic image to generate a first modeled dataset and a second modeled dataset; differencing the first modeled dataset and the second modeled dataset to create a residual dataset; filtering the first modeled dataset to generate an approximation of illumination; preconditioning the residual dataset with the approximation of illumination to generate an adjoint source; back projecting the adjoint source to determine a model update; and applying the model update to an earth model of the subsurface volume of interest.

公开(公告)号：US11360223B2

公开(公告)日：2022-06-14

申请号：US16136616

申请日：2018-09-20

Applicant: Chevron U.S.A. Inc.

Inventor： Peng Shen ,  Uwe K. Albertin ,  Lin Zhang

IPC: G01V1/28 ,  G01V1/30 ,  G01V1/34

Abstract: A method is described for full waveform inversion using a b-spline projection that produces an earth model that can be used for seismic imaging. The method may be executed by a computer system.

公开(公告)号：US20220178220A1

公开(公告)日：2022-06-09

申请号：US17540842

申请日：2021-12-02

Applicant: Chevron U.S.A. Inc.

Inventor： Caleb Kimbrell Carroll

IPC: E21B33/08 ,  E21B33/12

Abstract: A wiper barrier plug assembly can include a wiper plug, an expandable plug, and a trigger device that includes a trigger that is communicably coupled to the expandable plug, where the wiper plug, the expandable plug, and the trigger device are coupled to each other. The trigger device can be configured to detect a trigger condition while the trigger device is pumped down a cavity of the casing string. The trigger device can also be configured to operate, upon detecting the trigger condition, the expandable plug from a default position to an expanded position, where the expandable plug, when in the expanded position, is configured to abut against an inner surface of the casing string and to prevent the expandable plug from moving relative to the casing string.

公开(公告)号：US20220162508A1

公开(公告)日：2022-05-26

申请号：US17105614

申请日：2020-11-26

Applicant: Chevron U.S.A. Inc.

Inventor： Yihua ZHANG ,  Adeola Florence OJO ,  Guan-Dao LEI

IPC: C10G45/64 ,  B01J29/80 ,  B01J29/74 ,  B01J37/04 ,  B01J37/02 ,  B01J37/08 ,  C10M109/02 ,  C10M177/00

Abstract: An improved hydroisomerization catalyst and process for making a base oil product using a catalyst comprising SSZ-91 molecular sieve and ZSM-12 molecular sieve. The catalyst and process generally involves the use of a catalyst comprising an SSZ-91 molecular sieve combined with a ZSM-12 molecular sieve to produce dewaxed base oil products by contacting the catalyst with a hydrocarbon feedstock. The catalyst and process provide improved base oil cold properties, such as pour point and cloud point, along with other beneficial base oil properties.

公开(公告)号：US11320556B2

公开(公告)日：2022-05-03

申请号：US16548582

申请日：2019-08-22

Applicant: Chevron U.S.A. Inc.

Inventor： Guojian Shan ,  Yue Wang ,  Siwei Li

IPC: G01V1/34 ,  G01V1/28 ,  G01V1/30 ,  G01V1/36

Abstract: A method is described for seismic imaging including generating extended image gathers by extended reverse time migration of a seismic dataset using an earth model; processing the extended image gathers to generate processed image gathers; performing extended modeling based on the processed image gathers to generate a modeled seismic dataset; enhancing the processed image gathers to generate an enhanced image; performing extended modeling based on the enhanced image gathers to generate a modeled enhanced dataset; differencing the modeled enhanced dataset and the modeled seismic dataset to determine a data residual; inverting the data residual to generate a model residual; updating the earth model based on the model residual to create an updated earth model; performing seismic imaging of the seismic dataset using the updated earth model to create an improved seismic image. The method may be executed by a computer system.

公开(公告)号：US11320553B2

公开(公告)日：2022-05-03

申请号：US16912703

申请日：2020-06-25

Applicant: Chevron U.S.A. Inc.

Inventor： Kellen Leigh Gunderson ,  Chris Anthony Guzofski

IPC: G01V1/30

Abstract: A method is described for assessing subsurface structure uncertainty based on at least one subsurface horizon. The method calculates seismic continuity attributes to determine a mappability of the subsurface horizon(s); determines horizontal uncertainty for each fault in vertical uncertainty for each horizon; generates probabilistic scenarios for a subsurface geometry for at least one conceptual model; and generates a map of geological model uncertainty based on the probabilistic scenarios. In some embodiments, the probabilistic scenarios are stochastic simulations. In some embodiments, generating a map of geological model uncertainty is based on information entropy. The method may be executed by a computer system.

公开(公告)号：US20220128169A1

公开(公告)日：2022-04-28

申请号：US17082275

申请日：2020-10-28

Applicant: Chevron U.S.A. Inc.

Inventor： Albert E. Butterfield, IV

IPC: F16K31/60

Abstract: A portable valve handwheel tool includes a main drive arm that is configured to rotate a valve handwheel. The main drive arm includes a first drive spoke having a first retainer configured to engage a first spoke of the valve handwheel. The main drive arm further includes a first plate and a drive hub that extends from a broad side of the first plate of the main drive arm. The portable valve handwheel tool also includes a second drive arm having a second drive spoke with a second retainer. The second retainer is configured to engage a second spoke of the valve handwheel. The second drive arm further includes a second plate having a second center hole that allows the drive hub to pass therethrough. The portable valve handwheel tool also includes a locking mechanism that attaches the main drive arm to the second drive arm.

公开(公告)号：US11313216B2

公开(公告)日：2022-04-26

申请号：US17083645

申请日：2020-10-29

Applicant: Chevron U.S.A. Inc.

Inventor： Vladimir Crkvenjakov ,  Benjamin Ames Leonard ,  Ian S. Smith ,  Kevin Kaczorowski

IPC: E21B47/002 ,  E21B44/00 ,  E21B45/00

Abstract: Real-time data of drilling operations may be utilized to automatically fingerprint and evaluate their values to create enhanced information of interest. Enhanced information of interest may be comparable to given procedure and may facilitate generation of actionable insight and validation of procedural compliance. Real-time data of drilling operations may be analyzed to generate analysis and graphical comparison of specific sub-step operations that make up activities of interest. These operations may correspond to specific actions a driller on a rig may take to manipulate equipment and may be documented as procedural steps.