公开(公告)号：US20190129049A1

公开(公告)日：2019-05-02

申请号：US15794058

申请日：2017-10-26

Applicant: CHEVRON U.S.A. INC.

Inventor： James R. MAGILL ,  David C. BARTEL

IPC: G01V1/28

CPC classification number: G01V1/288 ,  G01V1/282 ,  G01V1/30 ,  G01V1/307 ,  G01V1/308 ,  G01V2210/1234 ,  G01V2210/65 ,  G01V2210/66

Abstract: A method is described for a manner of geologic analysis using time-lapse seismic data. The method includes steps to produce improved amplitude versus angle (AVA) information that may be used for analysis of geologic features of interest including estimation of pore fluid content and changes in the pore fluid content. The method assesses the probability of hydrocarbons in a subterranean reservoir based on seismic amplitude variations along offsets or angles for portions of a seismic horizon. The method may be executed by a computer system.

公开(公告)号：US20190128791A1

公开(公告)日：2019-05-02

申请号：US16229616

申请日：2018-12-21

Applicant: Chevron U.S.A. Inc.

Inventor： Douglas K. McCARTY ,  Jon E. BURGER ,  Lin LI ,  Guo-Qing TANG ,  Marcus O. WIGAND ,  Varadarajan DWARAKANATH ,  Dyung Tien VO

IPC: G01N15/08 ,  G01N33/24 ,  C09K8/88 ,  C09K8/68 ,  C09K8/66 ,  C09K8/60 ,  E21B49/08 ,  E21B49/00 ,  E21B43/26

CPC classification number: G01N15/082 ,  C09K8/602 ,  C09K8/605 ,  C09K8/66 ,  C09K8/68 ,  C09K8/88 ,  C09K2208/28 ,  E21B43/26 ,  E21B49/00 ,  E21B49/08 ,  G01N33/24

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.

公开(公告)号：US20190126232A1

公开(公告)日：2019-05-02

申请号：US15794104

申请日：2017-10-26

Applicant: Chevron U.S.A. Inc.

Inventor： Michael John Girgis ,  Huping Luo

IPC: B01J19/24 ,  C07C2/58 ,  B01J19/00

Abstract: We provide an integrated reactor system for performing an ionic liquid-catalyzed hydrocarbon conversion, comprising: a. a bundle of a heat exchanger tubing that extends predominantly through an internal length of a hydrocarbon conversion reactor; b. baffles extending across at least a portion of the hydrocarbon conversion reactor; c. multiple high speed jet flow nozzles configured to direct an ionic liquid catalyst and reactants into the hydrocarbon conversion reactor, external to the heat exchanger tubing; and d. a settling zone internal to the hydrocarbon conversion reactor.

公开(公告)号：US10272423B2

公开(公告)日：2019-04-30

申请号：US15276890

申请日：2016-09-27

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie ,  Christopher Michael Lew

IPC: B01D53/02 ,  C07C1/20 ,  C07C209/16 ,  B01J29/80 ,  B01J20/18 ,  C07C209/68 ,  B01D53/22 ,  C10G3/00 ,  B01J29/068 ,  B01J29/072 ,  B01J29/56 ,  B01J29/76 ,  B01D53/94

Abstract: Uses for a new crystalline molecular sieve designated SSZ-105 are disclosed. SSZ-105 is synthesized using N,N-dimethylpiperidinium cations as a structure directing agent. SSZ-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an ERI framework type molecular sieve and an LEV framework type molecular sieve.

公开(公告)号：US20190112906A1

公开(公告)日：2019-04-18

申请号：US15783640

申请日：2017-10-13

Applicant: Chevron U.S.A. Inc.

Inventor： Gunther H. Dieckmann ,  Michal Mieczyslaw Okoniewski ,  Cesar Ovalles ,  Pedro Vaca ,  James Dunlavey ,  Donald Kuehne

IPC: E21B43/24 ,  E21B33/14

Abstract: Embodiments include drilling a wellbore in a hydrocarbon-bearing formation, and the wellbore includes a radio frequency antenna destination portion that is configured to receive a radio frequency antenna; forming a low dielectric zone in the hydrocarbon-bearing formation proximate to the radio frequency antenna destination portion with a cavity based process or a squeezing based process; positioning the radio frequency antenna into the radio frequency antenna destination portion such that the radio frequency antenna is proximate to the low dielectric zone; dielectric heating the hydrocarbon-bearing formation with the radio frequency antenna such that the low dielectric zone increases dissipation of energy from the radio frequency antenna into the hydrocarbon-bearing formation; and extracting hydrocarbons from the heated hydrocarbon-bearing formation. The material has a dielectric constant of less than or equal to 20, a loss tangent of less than or equal to 0.4, and a porosity of less than or equal to 5%.

公开(公告)号：US20190105602A1

公开(公告)日：2019-04-11

申请号：US15972256

申请日：2018-05-07

Applicant: Chevron U.S.A. Inc.

Inventor： Nitesh Bhuwania ,  Shabbir Husain ,  Daniel Chinn ,  Ronald P. MacDonald ,  Tapan K. Das

IPC: B01D53/22 ,  B01D53/14 ,  C01B17/04

Abstract: Disclosed are systems and methods for producing oil and gas while removing hydrogen sulfide from fluids produced from oil and gas reservoirs. Hydrogen sulfide-selective membranes are used to remove hydrogen sulfide from bottlenecked plant process steps including hydrogen sulfide removal. In some embodiments of the present disclosure, plant processing efficiency is improved for processing of high temperature associated gas streams by using membranes while integrating heat from other existing process streams. In other embodiments of the present disclosure, plant processing efficiency is improved for processing of high temperature associated gas streams by using high temperature tolerant polymer membranes. Oil and/or gas production is increased.

公开(公告)号：US20190094199A1

公开(公告)日：2019-03-28

申请号：US16138625

申请日：2018-09-21

Applicant: Chevron U.S.A. Inc.

Inventor： Xundan Shi ,  Choongyong Han ,  Yih-Bor Chang ,  Christian Wolfsteiner ,  Baris Guyaguler

IPC: G01N33/28 ,  G06F17/11 ,  G01V99/00

Abstract: A method for simulating a microemulsion system in a chemical enhanced oil recovery process is disclosed. The method includes receiving a geological model of a subsurface reservoir that defines a grid having a plurality of cells, determining a surfactant concentration for each cell based on a volume of surfactant and a volume of water within the cell and independently from a volume of oil in the cell, and simulating fluids flowing in the subsurface reservoir. Results from simulation can be used to optimize a chemical enhanced oil recovery process in a subsurface reservoir.

公开(公告)号：US20190094125A1

公开(公告)日：2019-03-28

申请号：US16142919

申请日：2018-09-26

Applicant: Chevron U.S.A. Inc.

Inventor： Zhen Zhou ,  Elizabeth Montalvo

IPC: G01N17/04 ,  G01N17/00

Abstract: A method and apparatus for generating lube oil varnish samples and testing them under flow conditions is set forth herein. The method and apparatus are also used for the evaluation of the efficiency of varnish cleaners.

公开(公告)号：US20190093458A1

公开(公告)日：2019-03-28

申请号：US16204889

申请日：2018-11-29

Applicant: CHEVRON U.S.A. INC.

Inventor： Antonio Lazo ,  Namhyo Kim

IPC: E21B43/08

CPC classification number: E21B43/086 ,  E21B43/084 ,  E21B43/088

Abstract: A sand control screen assembly having a protective shroud or jacket that provides a controlled offset between the shroud and a filter medium. The sand control screen assembly also includes a base pipe having a drainage layer positioned therearound for preventing the flow of particulate material of a predetermined size therethrough and allowing the flow of production fluids therethrough.

公开(公告)号：US20190086568A1

公开(公告)日：2019-03-21

申请号：US16136755

申请日：2018-09-20

Applicant: Chevron U.S.A. Inc.

Inventor： Uwe K. Albertin ,  Joseph P. Stefani ,  Andrey H. Shabelansky ,  Mark A. Meadows

IPC: G01V1/30 ,  G01V1/34

Abstract: A method is described for seismic imaging including determination of reservoir stresses. The method may include the use of elastic full waveform inversion (FWI), 3rd-order elasticity, and finite-difference strain calculations. The method may be executed by a computer system.