公开(公告)号：US20220381758A1

公开(公告)日：2022-12-01

申请号：US17618663

申请日：2020-06-12

Applicant: Chevron U.S.A. Inc.

Inventor： David Glynn Thomas ,  Paul Bireta ,  Travis Samuel Elsdon ,  Michael John Marnane

IPC: G01N33/18 ,  G01N1/02 ,  G01N1/40

Abstract: A cartridge sampler for collecting a target species from an environment for subsequent chemical analysis includes removable collection media having at least one molecule sensor thereon. The cartridge sampler includes a means for tagging a geospatial location and time that the fluid samples are provided to the collection media such that the location and time that the fluid samples are provided to the collection media can be later determined. Also disclosed are systems and methods for collecting species from various environments including a subsurface formation, a pipeline, and gaseous, soil or sub-slab, and aqueous environments. The cartridge sampler is fitted on or within a device designed for moving within each environment.

公开(公告)号：US11507069B2

公开(公告)日：2022-11-22

申请号：US16865081

申请日：2020-05-01

Applicant: Chevron U.S.A. Inc. ,  University of Southern California

Inventor： Yining Dong ,  Alisha Deshpande ,  Yingying Zheng ,  Lisa Ann Brenskelle ,  Si-Zhao Qin

IPC: G06F9/44 ,  G06F9/455 ,  G06F9/445 ,  G06F11/00 ,  G05B19/418 ,  G05B19/408 ,  G05B19/406 ,  G06F9/54 ,  G06K9/62 ,  G06N20/00

Abstract: Methods and systems for building and maintaining model(s) of a physical process are disclosed. One method includes receiving training data associated with a plurality of different data sources, and performing a clustering process to form one or more clusters. For each of the one or more clusters, the method includes building a data model based on the training data associated with the data sources in the cluster, automatically performing a data cleansing process on operational data based on the data model, and automatically updating the data model based on updated training data that is received as operational data. For data sources excluded from the clusters, automatic building, data cleansing, and updating of models can also be applied.

公开(公告)号：US20220364449A1

公开(公告)日：2022-11-17

申请号：US17734713

申请日：2022-05-02

Applicant: Chevron U.S.A. Inc. ,  University of Pittsburgh - Of the Commonwealth System of Higher Education

Inventor： Andrew Paul Bunger ,  Amr Said El-Fayoumi ,  Jose I. Adachi ,  Karim S. Zaki ,  Qiao Lu

IPC: E21B43/26 ,  E21B47/06

Abstract: A dissipation equilibrium value for a well operation may be determined based on a height of a fracture within a layer and a limit on the change of the height of the fracture (fracture height change limit). A pressure limit for the well operation may be determined based on the dissipation equilibrium value, stress in the layer, and stress in a bounding layer. The pressure limit may be used to control the pressure of the well during the well operation, and prevent growth of the fracture beyond the fracture height change limit.

公开(公告)号：US20220333003A1

公开(公告)日：2022-10-20

申请号：US17853283

申请日：2022-06-29

Applicant: Chevron U.S.A. Inc.

Inventor： Nabijan Nizamidin ,  Gayani W. Pinnawala ,  Guo-Qing Tang ,  Varadarajan Dwarakanath ,  Gregory A. Winslow ,  Jordan Taylor Isbell ,  Taimur Malik

IPC: C09K8/584 ,  C09K8/588 ,  C09K8/60 ,  C09K8/66 ,  C09K8/68 ,  C09K8/80 ,  E21B43/20 ,  E21B43/26 ,  E21B47/11

Abstract: Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.

公开(公告)号：US20220325192A1

公开(公告)日：2022-10-13

申请号：US17634438

申请日：2020-08-12

Applicant: Chevron U.S.A. Inc.

Inventor： Minghui ZHANG ,  Horacio TREVINO ,  Guan-Dao LEI ,  Thomas Ralph FARRELL ,  Vijay R. SAMPATH

IPC: C10G69/02 ,  C10M101/02

Abstract: An improved process for making a base oil and for improving base oil yields by combining an atmospheric resid feedstock with a base oil feedstock and forming a base oil product 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 a light and heavy grade base oil product. A process is also disclosed for making a base oil having a viscosity index of 120 or greater from a base oil feedstock having a viscosity index of about 100 or greater that includes a narrow cut-point range vacuum gas oil. The invention is useful to make Group II and/or Group III/III+ base oils, and, in particular, to increase the yield of a heavy base oil product relative to a light base oil product produced in the process.

公开(公告)号：US20220323886A1

公开(公告)日：2022-10-13

申请号：US17225391

申请日：2021-04-08

Applicant: Chevron U.S.A. Inc.

Inventor： James Mitchell Knight

IPC: B01D29/52 ,  B01D29/68

Abstract: A filter unit includes an upper diverter chamber having a feed outlet, a backwash inlet, and an upper diverter tube in fluid communication with the backwash inlet. The filter unit also includes a lower diverter chamber comprising a feed inlet, a backwash outlet, and a lower diverter tube in fluid communication with the backwash outlet. A diverter motor is disposed between the upper diverter chamber and the lower diverter chamber. The diverter motor is coupled to a drive shaft. An upper end of the drive shaft is coupled to the upper diverter tube and a lower end of the drive shaft is coupled to the lower diverter tube. Filter housings are in fluid communication with the upper diverter chamber and the lower diverter chamber.

公开(公告)号：US11469584B1

公开(公告)日：2022-10-11

申请号：US17330660

申请日：2021-05-26

Applicant: Chevron U.S.A. Inc.

Inventor： Albert E. Butterfield, IV

IPC: H02G15/00 ,  H05K7/02 ,  H05K7/12

Abstract: A portable wire management ring configured to secure wires. The wire management ring includes an outer housing that has an outer housing base in a ring shape, the outer housing including a wire clamping region that is disposed along a circumference of the outer housing, and an outer housing cover that is attached to the outer housing base. The wire management ring also includes an inner securing ring that is disposed within the outer housing base. The inner securing ring includes a plurality of notches that are configured to secure a plurality of wires passing through the wire management ring, respectively.

公开(公告)号：US20220318526A1

公开(公告)日：2022-10-06

申请号：US17649124

申请日：2022-01-27

Applicant: Chevron U.S.A. Inc.

Inventor： Sara Regina Portilla Wanderley

IPC: G06K7/10 ,  H04B17/318 ,  G08B5/36 ,  G08B3/10 ,  G06K19/07

Abstract: A computing system can include a radio transceiver and tracking manager software for tracking the location of objects such as tools. Radio frequency identification tags are attached to the objects and can communicate with the radio transceiver. During an initial registration process, the tracking manager software sends an initial registration signal to each object so that the object can be identified in a registered objects file. In one instance, the tracking manager software subsequently sends periodic interrogation signals to the objects to confirm that the objects are within a certain proximity. In another instance, after completing a task a worker can check-in each object wherein the tracking manager software sends interrogation signals to the objects to confirm that all of the objects are accounted for.

公开(公告)号：US20220306955A1

公开(公告)日：2022-09-29

申请号：US17618381

申请日：2020-06-09

Applicant: CHEVRON U.S.A. INC. ,  GEORGIA TECH RESEARCH CORPORATION

Inventor： WILLIAM KOROS ,  YANG LIU ,  ZHONGYUN LIU ,  NITESH BHUWANIA ,  DANIEL CHINN

IPC: C10L3/10 ,  B01D53/22 ,  B01D67/00 ,  B01D69/02 ,  B01D69/08 ,  B01D71/64

Abstract: Disclosed is a method for removing hydrogen sulfide from natural gas. The method includes passing a natural gas feed including methane and hydrogen sulfide (H2S) through a membrane at normal operating conditions. The membrane is an asymmetric hollow fiber membrane or an asymmetric film composite membrane including a porous layer and a nonporous skin layer. The asymmetric hollow fiber membrane or the nonporous skin layer of the asymmetric film composite membrane plasticizes during the method by exposure to condensable gases with high critical temperature under the operating conditions. The membrane preferentially removes H2S over methane from the natural gas feed at a H2S/methane selectivity of from 7 to 40 when measured at 35° C. and 45 bar.

公开(公告)号：US20220290543A1

公开(公告)日：2022-09-15

申请号：US17197851

申请日：2021-03-10

Applicant: Chevron U.S.A. Inc.

Inventor： Matthew Scott Bolen ,  Andrew Thomas Ruhl ,  Seung Jin Han ,  Kristen Anne Belcourt ,  Amos Sunghyun Kim ,  Nicholas Andrew Zerante ,  Ross Gerard Cazenave ,  Jay Patrick Painter

IPC: E21B43/26 ,  F16L41/03

Abstract: A system for fracturing multiple wellbores on a multi-well pad can include a missile that receives high-pressure fracturing fluid from a plurality of pump truck. The system can also include a main manifold that receives the high-pressure fracturing fluid from the missile, where the main manifold includes multiple valves and multiple output channels, where each of the valves are operated between an open position and a closed position. The system can further include multiple wellbores including a first wellbore, a second wellbore, and a third wellbore, where the wellbores are connected to the output channels of the main manifold. The valves of the main manifold can be operated to enable simultaneous flow of the high-pressure fracturing fluid to the first wellbore, the second wellbore, and the third wellbore so that the first wellbore, the second wellbore, and the third wellbore are fractured simultaneously.