公开(公告)号：US20200056087A1

公开(公告)日：2020-02-20

申请号：US16528183

申请日：2019-07-31

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 ,  C09K8/66 ,  C09K8/68 ,  C09K8/60 ,  C09K8/80 ,  E21B43/20 ,  E21B43/26 ,  E21B47/10

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：US10557073B2

公开(公告)日：2020-02-11

申请号：US15534888

申请日：2016-06-16

Applicant: Halliburton Energy Services, Inc. ,  Chevron U.S.A. Inc.

Inventor： Donald Curtis Van Slyke ,  William Walter Shumway

IPC: E21B7/15 ,  E21B10/00 ,  E21B7/00 ,  C09K8/36 ,  E21B21/00 ,  E21B21/06 ,  E21B41/02

Abstract: The disclosure relates to an electrocrushing drilling system containing an electrocrushing drill bit with electrodes through which a voltage may be discharged that are at least 0.4 inches apart at their closest spacing and an electrocrushing drilling fluid including a polar oil, a non-polar oil, or a combination thereof and water. The disclosure further relates to methods of electrocrushing drilling using such a system.

公开(公告)号：US10537844B2

公开(公告)日：2020-01-21

申请号：US16563051

申请日：2019-09-06

Applicant: Chevron U.S.A. Inc.

Inventor： Robert E. Marshall, IV ,  Saham Sam Tafreshi

IPC: B01D53/02 ,  B01D53/04 ,  B01D53/26

Abstract: Disclosed is a system in which saturated mercury adsorbent in a gas mercury removal unit is dehydrated in a LNG, LPG or cryogenic gas plant using a regeneration gas stream. Spent regeneration gas stream is then condensed and the water is removed therefrom to form a renewed regeneration gas stream in a closed loop. The regeneration gas stream is compressed and recycled to a location in the plant upstream of an acid gas removal unit or upstream of a regeneration gas dehydration unit such that the regeneration gas stream is not sent to a flare. A dehydration unit having a pair of dehydration vessels, arranged in parallel, alternating between absorption and regeneration modes, receives gas from the compressor. Conventional plants can be retrofitted to achieve improved process efficiencies, cost savings and environmental benefits.

公开(公告)号：USD871206S1

公开(公告)日：2019-12-31

申请号：US29627948

申请日：2017-11-30

Applicant: Chevron U.S.A. Inc.

Designer： Ghadah Alamer ,  Stephen P. Dilley ,  Barbara Ann Nelson ,  David Schletewitz ,  Devin Muldoon ,  Michael Sauer

公开(公告)号：US20190391065A1

公开(公告)日：2019-12-26

申请号：US16452111

申请日：2019-06-25

Applicant: Chevron U.S.A. Inc.

Inventor： Oya Aysen KARAZINCIR ,  Yan LI ,  Karim Shafik ZAKI ,  Wade H. WILLIAMS ,  Ruiting WU ,  Yunhui TAN ,  MARGARETHA Catharina Maria RIJKEN ,  Russell Thomas EWY

IPC: G01N15/08 ,  G01N33/24

Abstract: In some embodiments, a system includes a housing having a cavity defined therein for holding a test sample, a first inlet in fluid communication with the cavity to deliver fluid to the test sample, a second inlet in fluid communication with the cavity to deliver fluid to the test sample, the first inlet configured to deliver fluid to the test sample in a direction substantially perpendicular to a direction that the second inlet is configured to deliver fluid to the test sample, an outlet in fluid communication with the cavity to receive fluid from the test sample, and a force applicator configured to apply compressive force to the test sample within the cavity. The force applicator forms a seal with the housing while applying compressive force to the test sample. The system also comprises at least one sensor configured to, while fluid flows from at least one of the inlets through the test sample to the outlet, determine a fluid characteristic, a test sample characteristic, or any combination thereof.

公开(公告)号：US20190383128A1

公开(公告)日：2019-12-19

申请号：US16441089

申请日：2019-06-14

Applicant: Chevron U.S.A. Inc.

Inventor： Daniel CHINN ,  Brent A. HETRICK ,  Nitesh BHUWANIA ,  Shabbir HUSAIN ,  Sam J. MISHAEL

IPC: E21B43/40 ,  B01D53/14 ,  E21B41/00 ,  E21B43/16 ,  C01B17/04

Abstract: Disclosed are methods and systems for reducing elemental sulfur production in a gas production plant that includes receiving produced fluids high in hydrogen sulfide, removing hydrogen sulfide and converting hydrogen sulfide to elemental sulfur in a Claus unit. An acid gas stream is diverted from a feed line to the Claus unit in the gas processing plant and directed to a multistage acid gas compressor. An elemental sulfur production rate is reduced without reducing a production rate of the produced fluids. The compressed acid gas stream can be injected into a subterranean formation. In some embodiments, the gas production plant is integrated with an oil processing and gas injection plant.

公开(公告)号：US20190382275A1

公开(公告)日：2019-12-19

申请号：US16439031

申请日：2019-06-12

Applicant: Chevron U.S.A. Inc.

Inventor： Dan XIE

IPC: C01B39/48 ,  B01J29/70

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.

公开(公告)号：US10465481B2

公开(公告)日：2019-11-05

申请号：US15511537

申请日：2016-02-08

Applicant: Halliburton Energy Services, Inc. ,  Chevron U.S.A. Inc.

Inventor： Mark A. Sitka ,  Mukul M. Agnihotri

IPC: E21B7/15 ,  E21B41/00 ,  E21B17/00 ,  E21B17/02 ,  E21B10/00 ,  F16C19/36 ,  E21B3/02

Abstract: A electrical conveyance for downhole tools is disclosed. The electrical conveyance system may include an electrical power manifold, a drill string coupled to the electrical power manifold, a multi-conductor conduit extending through an interior of the drill string, and a stinger assembly extending from an exterior of the electrical power manifold to an interior of the electrical power manifold to couple the multi-conductor conduit to an electrical power source.

公开(公告)号：US20190331820A1

公开(公告)日：2019-10-31

申请号：US16343969

申请日：2017-10-24

Applicant: TRIAD NATIONAL SECURITY, LLC ,  CHEVRON U.S.A. INC.

Inventor： Harvey E. Goodman ,  Timothy J. ULRICH, II ,  Peter M. ROBERTS ,  Marcel C. REMILLIEUX ,  Paul A. JOHNSON ,  Pierre-Yves LE BAS ,  Robert A. GUYER

IPC: G01V1/50 ,  G01V1/30 ,  E21B47/10 ,  E21B47/18

Abstract: Apparatus and methods for measurement of pore pressure in rock formations through an open, or cemented and/or cased, borehole are described. Such measurements are achieved using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation volume with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this volume using a Low Amplitude, High Frequency (LAHF) acoustic wave. Time reversal techniques may be employed for focusing acoustic energy Into the formation in the vicinity of the pipe or open hole.

公开(公告)号：US20190316446A1

公开(公告)日：2019-10-17

申请号：US16382703

申请日：2019-04-12

Applicant: Chevron U.S.A. Inc.

Inventor： James Daniel Montoya

IPC: E21B41/00 ,  H01M10/48 ,  E21B47/01

Abstract: A downhole on-demand power source system can include at least one first energy storage device located within a wellbore disposed in a subterranean formation in a first inactive state. The system can also include at least one first trigger that initiates the at least one first energy storage device from the first inactive state to a first active state. The at least one first energy storage device, once initiated, can provide a first power to an electrical load disposed in the wellbore proximate to the at least one first energy storage device. The at least one first energy storage device, when in the first inactive state, is incapable of providing the first power.