Patents Assigned to Chevron U.S.A. Inc.
  • Patent number: 10693237
    Abstract: A method of making a subsurface antenna which has an assymetric radiation pattern. The assymetric radiation pattern radiates electromagnetic waves unequally into two regions.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: June 23, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Michal Mieczyslaw Okoniewski, Damir Pasalic, Gunther Hans Dieckmann, James Thomas Dunlavey
  • Patent number: 10689947
    Abstract: A testable back pressure valve can include a body. The valve can also include a first flow regulating device movably disposed within a top end of the body, where the first flow regulating device is configured to move from a first default position to a first position based on first flow characteristics of a first fluid that flows into a top end of the body toward a bottom end of the body. The valve can further include a second flow regulating device movably disposed within the bottom end of the body. The valve can also include a network of channels disposed within the body between the first flow regulating device and the second flow regulating device.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 23, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: James Daniel Montoya, Heath Evan Lynch, Jay Patrick Painter, Jacobo Rogelio Archuleta
  • Patent number: 10684219
    Abstract: Hydrocarbons concentrations are determined in drilling cuttings samples by generating a model for predicting hydrocarbons concentrations. Methods include dividing multiple samples removed from drilling fluid into two one set analyzed using a retort, and another set analyzed using a handheld NIR spectrometer to obtain NIR diffuse reflectance data. PLS analysis is used to correlate the retort data with the diffuse reflectance data to generate a calibration model. The model is validated with samples having unknown hydrocarbons concentration. The model is used to predict the hydrocarbons concentration for samples removed from drilling fluid taken from the rig site using the spectrometer to obtain diffuse reflectance data. During measurements, each sample contains 0.1 to 10 wt % moisture and each sample is in a clear container pressed against the spectrometer window such that the IR source from the handheld device can pass to the drilled solids sample within the clear container without opening the clear container.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 16, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Toni Zhang Miao, John Bryan Trenery, Jr., Deyuan Kong, Roopa Kamath, Robert Neil Trotter, Cory James McDaniel
  • Patent number: 10683210
    Abstract: A method is provided for synthesizing a molecular sieve having the framework structure of SSZ-56 using benzyltributylammonium cations as a structure directing agent.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 16, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Dan Xie
  • Patent number: 10685482
    Abstract: A geometric method is described for 3D structural restoration of a subsurface model including receiving data representative of a subsurface volume of interest including one or more chronohorizons and the geometry and topology of any faults of relevance; developing a fault framework model of the subsurface volume of interest; selecting a horizon, the deposition of which represents the geologic time to which the structural model should be restored; developing coordinate transformation constrained by a single datum horizon and, optionally, additional geologic constraints; applying the 3D transformation to all geologic features below and, optionally, above the datum surface; and scaling the vertical coordinates to accurately relate vertical and horizontal dimensions. The method may be executed by a computer system.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: June 16, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Donald A. Medwedeff, Stan Nicolas Patrice Jayr, Peter J. Lovely
  • Patent number: 10683460
    Abstract: Provided herein are processes for ethylene oligomerization in the presence of an ionic liquid catalyst and a co-catalyst to produce a hydrocarbon product comprising C10-C55 oligomers.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: June 16, 2020
    Assignees: Chevron Oronite Company LLC, Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Cho Timken, Bong-Kyu Chang, Curtis Bay Campbell, Andrew Michael Thomas, Mark Anthony Fernandez, Madeleine Sessions
  • Patent number: 10677706
    Abstract: A workflow to optimize a fracturing fluid for injection into a subterranean formation is provided. The workflow comprises measurement of fundamental properties and characteristics of reservoir rock and fluid, their interaction with fracturing fluid, computer-based models and laboratory performance testing to select preferred fracturing base fluid and additives package for use in fracturing/re-fracturing stimulation of specific shale formations to enhance hydrocarbon recovery.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 9, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Douglas K. McCarty, Jon E. Burger, Lin Li, Guo-Qing Tang, Marcus O. Wigand, Varadarajan Dwarakanath, Dyung Tien Vo
  • Publication number: 20200174145
    Abstract: A method is described for analysis of subsurface data including the use of physics-based modeling and experimental design that allows calculation of probabilities of physical subsurface properties. The method may include calculations of key controlling parameters. The method may include using multiple dimension scaling. The method may be executed by a computer system.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 4, 2020
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Tao Sun, Brian J. Willis, Maisha L. Amaru, Ashley D. Harris, Morgan David Sullivan
  • Patent number: 10670755
    Abstract: Systems and methods for refining estimated effects of parameters on amplitudes are disclosed. Exemplary implementations may: (a) obtain ranges of parameter values for individual parameters within a subsurface region of interest; (b) generate a first model of the subsurface region of interest; (c) calculate a synthetic seismogram from the first model to determine corresponding amplitudes; (d) store results of applying the synthetic seismogram; (e) repeat steps (b)-(d) for multiple additional models; (f) obtain a subsurface distribution; (g) apply the subsurface distribution to the multiple models and the corresponding amplitudes; (h) generate a representation; and (i) display the representation.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: June 2, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Anandaroop Ray, Prasenjit Roy, James Magill, David Bartel, Reynaldo Cardona, Kabilan Krishnamurthy
  • Patent number: 10671775
    Abstract: Depth-averaged flow simulation systems and methods provided herein employ parameterized templates for dynamical depth profiling for at least one step of a simulation.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 2, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Tao Sun, Morgan Sullivan, Michael James Pyrcz, Martin Perlmutter, Jacob Covault
  • Publication number: 20200165911
    Abstract: A method is described for automated post-geosteering including receiving a pilot well log and a lateral well log with an initial lateral well path; performing automated post-geosteering to generate a corrected well path image; and displaying the corrected well path image on a graphical display. The method may be executed by a computer system.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 28, 2020
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Julian A. Thorne
  • Patent number: 10648291
    Abstract: Described herein are various embodiments of computer-implemented methods, computing systems, and program products for analyzing a flood operation on a hydrocarbon reservoir. For example, an embodiment of a computer implemented method of using producer centered polygons to identify at least one infill drilling location in a hydrocarbon reservoir having a plurality of producers and at least one injector is provided.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: May 12, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Tiantian Zhang, Morteza Sayarpour, Maryam Davari, Donna T. Auzenne
  • Patent number: 10648269
    Abstract: A system for distributing pressurized fluid during wellbore operations can include a pressure vessel having a fluid inlet and a fluid outlet. The system can also include a conduit rotatably connected to the fluid outlet of the pressure vessel for coupling to one or more wellbores. Also, a method for distributing pressurized fluid during wellbore operations can include receiving pressurized fluid in a pressure vessel. The method can also include distributing to one or more wellbores the pressurized fluid from the pressure vessel through a conduit rotatably connected to the pressure vessel.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 12, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Jay Painter, Christopher Champeaux, Doug Scott
  • Publication number: 20200144876
    Abstract: A device including a plurality of motors is disclosed. The device includes a body comprising a plurality of magnet arrays. Each magnet array comprises a plurality of magnets which define a polygon and the plurality of magnets are arranged in a semi-Halbach configuration. The polygons of the plurality of magnet arrays form a tessellating pattern in which the magnet arrays each share at least one magnet with another one of the magnet arrays. Each magnet is configured to be rotatable relative to the body, or in the case of coils as magnets, the input of each coil can be manipulated to replicate the same or similar effect. The device further comprises a plurality of rotors, wherein each magnet array is configured to receive a rotor rotatable relative to the body.
    Type: Application
    Filed: January 7, 2020
    Publication date: May 7, 2020
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Scott Jeffrey Seltzer, Boqin Sun
  • Patent number: 10640389
    Abstract: A method is provided for synthesizing aluminum-rich molecular sieves of *MRE framework type via interzeolite transformation of a FAU framework type zeolite in the presence of hexamethonium cations.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: May 5, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Dan Xie
  • Publication number: 20200132597
    Abstract: Hydrocarbons concentrations are determined in drilling cuttings samples by generating a model for predicting hydrocarbons concentrations. Methods include dividing multiple samples removed from drilling fluid into two one set analyzed using a retort, and another set analyzed using a handheld NIR spectrometer to obtain NIR diffuse reflectance data. PLS analysis is used to correlate the retort data with the diffuse reflectance data to generate a calibration model. The model is validated with samples having unknown hydrocarbons concentration. The model is used to predict the hydrocarbons concentration for samples removed from drilling fluid taken from the rig site using the spectrometer to obtain diffuse reflectance data. During measurements, each sample contains 0.1 to 10 wt % moisture and each sample is in a clear container pressed against the spectrometer window such that the IR source from the handheld device can pass to the drilled solids sample within the clear container without opening the clear container.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Applicant: Chevron U.S.A. Inc.
    Inventors: Toni Zhang MIAO, John Bryan TRENERY, JR., Deyuan KONG, Roopa KAMATH, Robert Neil TROTTER, Cory James MCDANIEL
  • Patent number: 10634746
    Abstract: To measure the phase behavior of a fluid in a porous medium such as a tight gas shale, one illustrative method involves: (a) loading the fluid into a sample cell containing the porous medium; (b) setting a pressure and a temperature for the fluid in the sample cell; (c) applying an RF pulse sequence to the fluid in the sample cell to acquire an NMR signal; (d) deriving from the NMR signal an NMR parameter distribution that depends on the pressure and the temperature; (e) determining whether a fluid phase is present based on the NMR parameter distribution; (f) repeating operations (c) through (f) to determine the presence or absence of the fluid phase at multiple points along a pressure-temperature path that crosses a phase boundary; and (g) providing an estimated location of the phase boundary based on the presence or absence of the fluid phase at said points.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: April 28, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Haijing Wang, Boqin Sun, Scott J. Seltzer, John S. Zintsmaster, Hussein Alboudwarej
  • Patent number: 10633304
    Abstract: An integrated process unit for making one or more alkylate products is provided. The integrated process unit includes (a) a dehydrogenation reactor; (b) a single alkylation reactor; (c) a separator, following the alkylation reactor, that separates effluent from the alkylation reactor into a catalyst phase and a hydrocarbon phase; (d) a distillation unit, following the separator, that receives the hydrocarbon phase and separates it into alkylate products, an unreacted paraffin phase, and an isoparaffin phase; (e) a first recycle line that feeds unreacted paraffin phase to the dehydrogenation reactor; and (f) a second recycle line that feeds isoparaffin phase to the alkylation reactor.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 28, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Cho Timken, Kenneth John Peinado, Bong-Kyu Chang
  • Patent number: 10634804
    Abstract: A method is described for seismic imaging of the subsurface using dip-guided optimized stacking. The method computes weighting functions for a plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images based on a slant stack performed using an input dip dataset; applying the plurality of weighting functions to the plurality of single-shot migrated images, unstacked seismic images, or partially stacked seismic images, or a plurality of dip-filtered images to create a plurality of weighted images; and summing the plurality of weighted images into a stacked seismic image. The method may be executed by a computer system.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 28, 2020
    Assignee: Chevron U.S.A. Inc.
    Inventors: Yonghe Sun, Guojian Shan, Yue Wang, Craig Alan Barker
  • Patent number: 10633962
    Abstract: Method and system for separation of produced water into a water fraction, a solids fraction and a hydrocarbon fraction, comprising feeding produced water into a collapsible flexible bag maintained subsea by a protection structure; operating the flexible bag at an overpressure and thereby providing a predefined geometry of the flexible bag; maintaining the produced water in the flexible bag to allow for gravitational separation of the solids fraction with a higher density than water in a lower section and optionally separation of the hydrocarbon fraction with a lower density than water in an upper section; removing the water fraction from a section above the lower section; optionally removing hydrocarbons from the upper section and replacing the flexible bag to remove the solids fraction.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 28, 2020
    Assignees: NOV SUBSEA PRODUCTS AS, CHEVRON U.S.A. INC.
    Inventors: Eirik Bjerve Sund, Jan-Otto Reimers, Gudmund Roger Totland, Christopher John Kalli, Russell Evan Cooper