公开(公告)号：US20210230975A1

公开(公告)日：2021-07-29

申请号：US16774708

申请日：2020-01-28

Applicant: Chevron U.S.A. Inc.

Inventor： Antonio C.F. CRITSINELIS ,  Sid MEBARKIA ,  Michelle A. WISE ,  Yesudas J. MANIMALA ,  William C. HUGHES ,  Steven W. COCHRAN ,  Edgar URIBE ,  Jason D. GARCIA

IPC: E21B36/00 ,  E21B33/037 ,  E21B33/035

Abstract: Disclosed are systems and methods for thermal management of subsea conduits such as jumpers that provide the ability to alternate between cooling and heat retention of production fluids within the conduit as needed depending on the phase of operation. Adjustable insulation elements are provided on the conduits so that convective heat transfer between surrounding seawater and the conduit can be allowed or reduced. A control system can activate an alarm indicating the need to adjust the insulation depending on the temperature and/or flow rate of fluids in the conduit. Conventional conduits can be retrofitted by adding adjustable insulation elements to enable thermal management.

公开(公告)号：US20210222045A1

公开(公告)日：2021-07-22

申请号：US17141969

申请日：2021-01-05

Applicant: Chevron U.S.A. Inc.

Inventor： Michael James Fuller ,  Robert Neil Trotter ,  John Bryan Trenery, JR.

IPC: C09K8/24 ,  C09K8/16 ,  C09K8/508 ,  C09K8/504 ,  C09K8/516 ,  E21B21/00 ,  E21B43/26

Abstract: The disclosure is related to compositions and methods for strengthening wellbores. Specific embodiments include compositions and uses for self-degrading WBS materials which do not damage a wellbore, thus, leading to increased production.

公开(公告)号：US11067711B2

公开(公告)日：2021-07-20

申请号：US16343975

申请日：2017-03-26

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

Inventor： Harvey E. Goodman ,  Timothy James Ulrich, II ,  Robert A. Guyer ,  Paul A. Johnson ,  Marcel C. Remillieux ,  Pierre-Yves Le Bas

IPC: G01V1/00 ,  G01V1/30 ,  E21B47/06 ,  G01N29/024 ,  G01N15/08 ,  G01H5/00 ,  G01N29/34 ,  E21B47/107 ,  E21B49/00 ,  E21B21/00

Abstract: Apparatus (10) and methods for measurement of pore pressure in rock formations through a metal borehole casing (32) after a well is cased and cemented, are described. Such measurements may be accomplished by using the Dynamic Acoustic Elasticity (DAE) method for characterizing nonlinear parameters by perturbing a selected rock formation region with a High Amplitude, Low Frequency (HALF) acoustic strain wave, and probing this region using a Low Amplitude, High Frequency (LAHF) acoustic wave (18), (22). Time reversal techniques (36) may be employed for focusing acoustic energy into the formation in the vicinity of the pipe or open hole. The change in wave speed of the probe pulses as the HALF induced strain wave oscillation propagates through the formation, as a function of the induced strain, may be used to determine the nonlinear elastic parameters α, β, δ, and A of the pore pressure, from which the pore pressure may be determined in the region of the HALF wave.

公开(公告)号：US20210197930A1

公开(公告)日：2021-07-01

申请号：US16670486

申请日：2019-10-31

Applicant: CHEVRON U.S.A. INC.

Inventor： Miles Ashley Frazer

IPC: B63B22/14 ,  B63B21/29 ,  B63B21/04 ,  B63B79/15

Abstract: Embodiments of an underwater monitoring system are provided. In one embodiment, the system has an anchor stake connected to a vented pipe. The pipe has an interior and an exterior and is configured to house a sensor in the interior. The vents on the vented pipe are configured to exchange water between the interior and the exterior while protecting any interior sensors.

公开(公告)号：US11041128B2

公开(公告)日：2021-06-22

申请号：US16533510

申请日：2019-08-06

Applicant: Chevron U.S.A. Inc.

Inventor： Theodorus Ludovicus Michael Maesen ,  Derek Blackwell ,  Viorel Duma ,  Varut Komalarajun ,  Alexander E. Kuperman ,  Hyunuk Ryu ,  Horacio Trevino ,  Alex Yoon ,  Ujjal Mukherjee

IPC: C10G47/20 ,  B01J31/04 ,  B01J31/02 ,  B01J31/22 ,  C10G47/34 ,  B01J37/20 ,  C10G65/12 ,  C10G67/02

Abstract: A catalyst system has been designed that disrupts the sedimentation process. The catalyst system achieves this by saturating key feed components before the feed components are stripped into their incompatible aromatic cores. The efficacy of this disruptive catalyst system is particularly evident in a hydrocracker configuration that runs in two-stage-recycle operation. The catalyst is a self-supported multi-metallic catalyst prepared from a precursor in the hydroxide form, and the catalyst must be toward the top level of the second stage of the two-stage system.

公开(公告)号：US11033886B2

公开(公告)日：2021-06-15

申请号：US16801294

申请日：2020-02-26

Applicant: Chevron U.S.A. Inc.

Inventor： Dan Xie

IPC: B01J29/70 ,  C01B39/48 ,  C10G47/16 ,  C10G11/05 ,  B01J37/00 ,  B01J37/03 ,  B01J37/04

Abstract: A novel synthetic crystalline molecular sieve material, designated SSZ-115, is provided. SSZ-115 can be synthesized using 1-methyl-1-[5-(trimethylammonio)pentyl]pyrrolidinium dications as a structure directing agent. SSZ-115 may be used in organic compound conversion reactions and sorptive processes.

公开(公告)号：US20210173117A1

公开(公告)日：2021-06-10

申请号：US16706579

申请日：2019-12-06

Applicant: Chevron U.S.A. Inc.

Inventor： Fabien J. Laugier ,  Alicia Downard ,  Tao Sun

IPC: G01V99/00

Abstract: Unsegmented continuous subsurface data may be analyzed using one or more moving windows to characterize a subsurface region. Unsegmented continuous subsurface data may be scanned using the moving window(s). Probabilities that portions of the subsurface region include a subsurface feature may be determined based on analysis of the portions of the unsegmented continuous subsurface data within the moving window(s).

公开(公告)号：US11002880B2

公开(公告)日：2021-05-11

申请号：US16384399

申请日：2019-04-15

Applicant: Chevron U.S.A. Inc.

Inventor： Daniel A. Minguez ,  Thomas Matthew Laroche ,  Keith R. Thomas ,  Alan Morgan ,  Elizabeth Anna Edwards Johnson

IPC: G01V99/00 ,  G01V11/00 ,  G01V1/28

Abstract: A method for quantitatively evaluating multiple computer-based plate tectonic models for application in a geographic region of interest, in some embodiments, comprises: selecting a plurality of computer-based plate tectonic models; using multiple computer-based plate tectonic models to generate one or more predictions for one or more geological parameters; obtaining observational data for each of said one or more geological parameters; for each of said one or more geological parameters, quantitatively comparing the predictions and the observational data to determine model rankings; and displaying said model rankings on a computer display.

公开(公告)号：US20210131279A1

公开(公告)日：2021-05-06

申请号：US16824059

申请日：2020-03-19

Applicant: Chevron U.S.A. Inc.

Inventor： Michael Ryan Fitzsimmons ,  Rollyn Rousel Samson Reyes

IPC: E21B49/00 ,  E21B45/00

Abstract: Downhole casing temperature may be predicated at the drill string/casing interface as a function of side force on the casing due to drill string tension, the speed or rate of penetration of the drill string in the axial direction, the rate of rotation of the drill string, and a calibrated/assumed friction factor. Predicted down hole casing temperature may be used as a proxy to monitor casing integrity.

公开(公告)号：US20210131267A1

公开(公告)日：2021-05-06

申请号：US17089539

申请日：2020-11-04

Applicant: CHEVRON U.S.A. INC. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Robert Kwan Meng SEAH ,  Hailing AN ,  Thomas E. O'DONNELL ,  Darmindra Arumugam

IPC: E21B47/002 ,  G01V3/18 ,  G01V3/38

Abstract: A magneto-quasistatic field may be used to align hydrogen of materials within a structure and/or to disrupt the alignment of hydrogen of materials within the structure. Realignment of the hydrogen after the disruption may cause emission of energy from the hydrogen. The characteristic(s) of the energy may be detected and used to generate image(s) of interior portion(s) of the structure.