Patents Assigned to Chevron U.S.A. Inc.
  • Patent number: 11414327
    Abstract: A system can include a multi-material fluid having a mixture of a first material and a second material. The system can also include a first vessel into which the multi-material fluid is disposed. The system can further include a first sonication device disposed, at least in part, in the multi-material fluid in the first vessel. The first sonication device, when operating, can emit ultrasound waves into the multi-material fluid. The ultrasound waves separate the first material and the second material from each other in the first vessel.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: August 16, 2022
    Assignees: CHEVRON U.S.A. INC., ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Carl W. Lam, Hong Luo, Yuanming Guo, Emmy Pruitt, Paul Dahlen
  • Patent number: 11415593
    Abstract: A portable air fan measurement tool that is configured to measure air flow and air temperature. The air fan measurement tool includes a base comprising a magnet, the magnet being configured to attach the base to an air fan ring of an air fan. The portable air fan measurement tool also includes a vertical support having a first end configured to engage the base. The portable air fan measurement tool further includes an angular support having a first end configured to engage the vertical support and a horizontal support having a first end configured to engage a second end of the angular support. Moreover, the portable air fan measurement tool includes a boom having a first end configured to engage a second end of the vertical support and a second end of the horizontal support, and a plurality of air fan measurement devices that are disposed on the boom.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: August 16, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Albert E. Butterfield, IV, Jeffrey Brandon Dooley, Ronald W. Hill, Ian Addington Luna
  • Patent number: 11407959
    Abstract: Described herein is a process, comprising: a) selecting an API Group II base stock with selected viscosity index and pour point; b) blending a base oil with the base stock, and c) adding to the base oil: i) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient, and ii) an additive package, to make a driveline fluid that has a defined viscosity index and excellent shear stability. Also provided is a driveline fluid composition having the high viscosity index and excellent shear stability, comprising: a) a base oil comprising from 50 wt % to 100 wt % API Group II base stock; b) a liquid ethylene propylene copolymer viscosity modifier that reduces a traction coefficient; and c) an additive package. Further provided is a method for lubricating an axle or manual transmission by supplying the driveline fluid composition.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 9, 2022
    Assignees: The Lubrizol Corporation, Chevron U.S.A. Inc.
    Inventors: Hyun-Soo Hong, John Aleksonis Zakarian, Sona Sivakova, Tomoya Higuchi, Christopher Engel, Farrukh Qureshi
  • Patent number: 11409013
    Abstract: A method is described for property estimation including receiving a seismic dataset representative of a subsurface volume of interest and a well log from a well location within the subsurface volume of interest; identifying seismic traces in the seismic dataset that correspond to the well location to obtain a subset of seismic traces; windowing the subset of seismic traces and the well log to generate windowed seismic traces and a windowed well log; multiplying the windowed seismic traces and the windowed well log by a random matrix to generate a plurality of training datasets; and training a neural network using the plurality of training datasets. The method may be executed by a computer system.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: August 9, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Ke Wang, Laura L. Bandura, Dimitri Bevc, James P. Disiena, Adam Dean Halpert, Bruce A. Power, Ellen Xiaoxia Xu
  • Publication number: 20220244418
    Abstract: A method is described for localized seismic imaging around a wellbore. The method uses at least one non-conventional seismic source such as an electrical submersible pump to generate seismic signals which are reflected by the surrounding wellbore and rock formation and recorded by a fiber optic cable or downhole geophones. The seismic data is then processed and imaged to generate an image of the volume around the wellbore. The method may be executed by a computer system.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Kevin John DAVIES
  • Patent number: 11401482
    Abstract: Disclosed is a method for preventing or reducing low speed pre-ignition in an engine lubricated with a formulated oil. The formulated oil has a composition comprising at least one oil soluble or oil dispersible cobalt-containing compound.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: August 2, 2022
    Assignees: CHEVRON ORONITE COMPANY LLC, CHEVRON U.S.A. INC.
    Inventors: Ian G. Elliott, Richard E. Cherpeck, Amir Gamal Maria, Theresa Liang Gunawan
  • Patent number: 11403497
    Abstract: Embodiments of categorizing fractures in a subsurface formation are provided herein. One embodiment comprises obtaining at least one borehole image for a plurality of fractures in a subsurface formation and at least one resistivity log for the plurality of fractures of the surface formation. The embodiment comprises determining first aperture data based on the at least one borehole image for the plurality of fractures and determining second aperture data based on the at the least one resistivity log for the plurality of fractures. The embodiment comprises comparing the first aperture data based on the at least one borehole image and the second aperture data based on at least one resistivity log to determine whether to categorize each fracture of the plurality of fractures as a naturally occurring fracture or a non-naturally occurring fracture. The embodiment comprises generating an output indicating the categorization of each fracture and displaying the output.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 2, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Bo Gong, Hanming Wang
  • Patent number: 11401460
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a gas into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: August 2, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Samiha Said Elsayed Morsy, Nabijan Nizamidin, Mohsen S. Tagavifar
  • Publication number: 20220236445
    Abstract: Strain and time-strain measurement in a well enables derivation of a constant that links the two. Knowledge of the constant along with time-strain measurement at another well enables estimation of strain at the other well.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 28, 2022
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Kevin John Davies
  • Publication number: 20220236700
    Abstract: Embodiments of modelling a fluid treatment system are provided herein. One embodiment comprises obtaining synthetic data for a fluid treatment system from a data store. The fluid treatment system comprises a membrane and the fluid treatment system is configured to receive a stream of fluid for treatment. The embodiment further comprises training a performance indicator model using the synthetic data to predict a performance indicator for the fluid treatment system. The performance indicator comprises a permeate sulfate performance indicator and the performance indicator model predicts a sulfate content value in a permeate stream.
    Type: Application
    Filed: January 28, 2022
    Publication date: July 28, 2022
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Cheng CHEN, Lauren A. FLORES, Martin Antonio MORLES
  • Publication number: 20220236699
    Abstract: Embodiments of modelling a fluid treatment system are provided herein. One embodiment comprises obtaining synthetic data for a fluid treatment system from a data store. The fluid treatment system comprises a membrane and the fluid treatment system is configured to receive a stream of fluid for treatment. The embodiment comprises training a machine learning pressure prediction model using the synthetic data to predict a pressure for the membrane of the fluid treatment system. The trained pressure prediction model is combinable with an operator training simulator (OTS) model to update the OTS model to improve accuracy of simulation pressure output from the OTS model.
    Type: Application
    Filed: January 28, 2022
    Publication date: July 28, 2022
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Martin Antonio MORLES, Lauren A. FLORES, Cheng CHEN
  • Patent number: 11397279
    Abstract: Well information may define subsurface configuration of different wells. Marker information defining marker positions within the wells may be obtained. A dissimilarity matrix for the wells may generated, with the element values of the dissimilarity matrix determined based on comparison of corresponding subsurface configuration of the wells. A gated dissimilarity matrix may be generated from the dissimilarity matrix based on the marker positions within the wells. The elements values of the gated dissimilarity matrix corresponding to one set of marker positions and not corresponding to the other set of marker positions may be changed. Correlation between the wells may be determined based on the gated dissimilarity matrix such that correlation exists between a marker position in one well and a marker position in another well.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: July 26, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Brett M. Hern, Tao Sun, Brian J. Willis, Fabien J. Laugier, Ashley D. Harris
  • Patent number: 11396631
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: July 26, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee
  • Patent number: 11389788
    Abstract: Provided is a scalable delamination of a SSZ-70 framework zeolite, without the need for sonication, which has been previously made difficult by the charged nature of the imidazolium structure-directing agents that are required for zeolite synthesis. The method comprises contacting a B-SSZ-70 zeolite precursor with a zinc source such as zinc nitrate and a fluoride source.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 19, 2022
    Assignees: Chevron U.S.A. Inc., The Regents of the University of California
    Inventors: Alexander Katz, Alexander Okrut, Martina Aigner, Xiaoying Ouyang, Stacey Ian Zones
  • Patent number: 11391864
    Abstract: Systems and methods for generating permeability scaling function for different features of interest are disclosed. Exemplary implementations may: obtain subsurface data sets; generate permeability scaling functions for individual features of interest; store the permeability scaling functions; and generate upscaled subsurface distributions using the permeability scaling functions.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 19, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Mark Skalinski, Rafael Salazar-Tio, Robert Mallan
  • Patent number: 11384284
    Abstract: Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a foamed pressure protection composition into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: July 12, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Ruth Ellen Hahn, Taimur Malik, Samiha Said Elsayed Morsy, Nabijan Nizamidin, Mohsen S. Tagavifar
  • Patent number: 11377586
    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.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: July 5, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Nabijan Nizamidin, Gayani W. Pinnawala, Guo-Qing Tang, Varadarajan Dwarakanath, Gregory A. Winslow, Jordan Taylor Isbell, Taimur Malik
  • Publication number: 20220204876
    Abstract: Provided is a process for preparing base oil from a waxy hydrocarbon feedstock by contacting the hydrocarbon feedstock in a hydroisomerization zone under hydroisomerization conditions. The reaction is in the presence of hydrogen and an inert gas, with the total pressure in the hydroisomerization zone being at least 400 psig. A product from the hydroisomerization zone is collected and separated into base oil products and fuel products. The inert gas can comprise any suitable inert gas, but is generally nitrogen, methane or argon. Nitrogen is used in one embodiment.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jifei Jia, Guan-Dao Lei, Jay Parekh, Yihua Zhang
  • Publication number: 20220204875
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee
  • Publication number: 20220204874
    Abstract: Provided in one embodiment is an improved and more flexible process for preparing a finished base oil or a white oil product comprising passing a dewaxed base oil product to a distillation column and separating the dewaxed base oil product into fuel and base oil product streams. The base oil product streams are tested to determine if they meet desired specifications. Base oil product streams that meet the desired minimum base oil specifications are passed to a hydrofinishing reactor to prepare a white oil product, or passed to direct sale.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Kenny Peinado, Jay Parekh, Jifei Jia, Yihua Zhang, Guan-Dao Lei, Guang Zhang