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公开(公告)号:US20210339232A1
公开(公告)日:2021-11-04
申请号:US17190611
申请日:2021-03-03
Applicant: CHEVRON U.S.A. INC.
Inventor: Xiaoying OUYANG , Viorel DUMA , Alexander KUPERMAN , Ibrahim UCKUNG , Theodorus Ludovicus Michael MAESEN , Axel BRAIT , Charles WILSON
IPC: B01J23/89 , B01J35/10 , B01J35/00 , B01J37/20 , B01J37/00 , C07C5/10 , B01J37/04 , B01J37/03 , B01J37/08 , C10G45/00 , C10G47/00 , C10G49/00
Abstract: Bulk catalysts comprised of nickel, molybdenum, tungsten and titanium and methods for synthesizing bulk catalysts are provided. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.
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公开(公告)号:US11161749B1
公开(公告)日:2021-11-02
申请号:US17323005
申请日:2021-05-18
Applicant: CHEVRON U.S.A. INC.
Inventor: Stacey Ian Zones , Jesus Pascual , Dan Xie , Cong-Yan Chen
Abstract: A small crystal size, high surface area aluminogermanosilicate molecular sieve material, designated SSZ-120, is provided. SSZ-120 can be synthesized using 3,3′-[2,6-naphthalenebis(methylene)]bis[1,2-dimethyl-1H-imidazolium] dications as a structure directing agent. SSZ-120 may be used in organic compound conversion reactions and/or sorptive processes.
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公开(公告)号:US20210332300A1
公开(公告)日:2021-10-28
申请号:US17237633
申请日:2021-04-22
Applicant: Chevron U.S.A. Inc.
Inventor: Hye-Kyung Timken
Abstract: Provided in one embodiment is a continuous process for converting waste plastic comprising polyethylene and/or polypropylene into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene, polypropylene, or a mixture thereof, and passing the waste plastics through a pyrolysis reactor to thermally crack at least a portion of the polyolefin waste and produce a pyrolyzed effluent. The pyrolyzed effluent is separated into offgas, a pyrolysis oil comprising a naphtha, diesel and heavy fractions, and char. The pyrolysis oil, or at least a fraction, is passed to a filtration/metal oxide treatment, with the treated product passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture fraction is recovered from the FCC unit, as well as a C4 olefin/paraffin mixture fraction. The C3 olefin fraction can be passed to a propylene polymerization reactor, and the C3 paraffin passed to a dehydrogenation unit to produce propylene for further polymerization.
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公开(公告)号:US20210294848A1
公开(公告)日:2021-09-23
申请号:US16825910
申请日:2020-03-20
Applicant: Chevron U.S.A. Inc.
Inventor: Shaddick Keagy
IPC: G06F16/835 , G06F16/26
Abstract: Well operation information arranged in the extensible markup language format may be converted into a cloud-native format. The converted information may be provided to a cloud-native application to facilitate operation of the well.
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公开(公告)号:US20210255347A1
公开(公告)日:2021-08-19
申请号:US17232711
申请日:2021-04-16
Applicant: Chevron U.S.A. Inc.
Inventor: Justin Curtis Palmer , Lisa Renee Goggin , Adam Dean Halpert , Laura Leigh Bandura , Christopher H. Skelt
Abstract: A computer-implemented method is described for seismic facies identification including receiving a seismic dataset representative of a subsurface volume of interest; applying a model conditioned by petrophysical classifications to the seismic dataset to identify seismic facies and generate a classified seismic image; and identifying geologic features based on the classified seismic image. The method generates seismic facies probability volumes.
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公开(公告)号:US11091961B2
公开(公告)日:2021-08-17
申请号:US16738174
申请日:2020-01-09
Applicant: Chevron U.S.A. Inc.
Inventor: Matthew Scott Bolen , Kenneth Eric Hodges , Steven Thomas Bowman
Abstract: A system for developing multiple subterranean wellbores in a land-based field can include a first operational platform disposed over a first entry point of a first subterranean wellbore at a first time. The system can also include a second operational platform disposed over a second entry point of a second subterranean wellbore at the first time, where the first entry point and the second entry point are located proximate to each other. The system can further include first field equipment disposed on the first operational platform. The system can also include a second field equipment disposed on the second operational platform. The first field equipment can be used to develop the first subterranean wellbore, and the second field equipment can be used to develop the second subterranean wellbore.
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公开(公告)号:US11091683B2
公开(公告)日:2021-08-17
申请号:US16689243
申请日:2019-11-20
Applicant: Halliburton Energy Services, Inc. , Chevron U.S.A. Inc.
Abstract: The disclosure relates to an electrocrushing drilling fluid with an electrocrushing drilling base fluid including a polar oil, a non-polar oil, or a combination thereof and glycerine carbonate. The electrocrushing drilling fluid or base fluid may further include water or glycerin. The electrocrushing drilling fluid may further contain at least one additive. The electrocrushing drilling fluid may have a dielectric constant or dielectric strength of at least a set amount, an electric conductivity less than a set amount, or a combination of these properties. The disclosure further relates to an electrocrushing drilling system containing the electrocrushing drilling fluid and an electrocrushing drill bit.
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公开(公告)号:US11085259B2
公开(公告)日:2021-08-10
申请号:US16697426
申请日:2019-11-27
Applicant: CHEVRON U.S.A. INC.
Inventor: Nabijan Nizamidin , Harold Linnemeyer
IPC: E21B21/08 , G01N11/04 , E21B43/267
Abstract: The present invention relates generally to systems and processes for improved drag reduction estimation and measurement and more specifically to portable drag reduction analyzers and processes for upscaling drag reduction data for a variety of field applications. A drag reduction parameter AB for the fluid mixture is used for determining drag reduction for a fluid mixture in an oil field or pipeline operation.
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公开(公告)号:US11079505B2
公开(公告)日:2021-08-03
申请号:US16083441
申请日:2017-03-09
Applicant: TRIAD NATIONAL SECURITY, LLC , CHEVRON U.S.A. INC.
Inventor: Paul A. Johnson , Timothy J. Ulrich, II , Pierre-Yves Le Bas , Robert A. Guyer , Harvey E. Goodman , Marcel C. Remillieux
Abstract: Apparatus (10) and methods for combining time reversal and elastic nonlinearity of formation materials for qualtitatively probing for over-pressured regions down hole in advance of a well drilling bit, to determine the distance to the over-pressured region, and for accurately measuring pore pressure downhole in a formation, are described. Classical and reciprocal time reversal methods may be utilized to achieve these measurements.
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540.
公开(公告)号:US11078727B2
公开(公告)日:2021-08-03
申请号:US16421251
申请日:2019-05-23
Applicant: Halliburton Energy Services, Inc. , Chevron U.S.A. Inc. , SDG LLC
Inventor: Daniel D. Gleitman , William M. Moeny
Abstract: A disclosed pulsed-power drilling system may include a controller that receives and analyzes feedback from downhole components reflecting changing conditions or performance measurements associated with a pulsed drilling operation to determine that an operating parameter of the drilling operation should be modified. The controller may output a control signal to cause an adjustment of a configurable downhole component, such as mechanical, electrical, or hydraulic component that affects the operating parameter, while the drill bit remains in the wellbore. The controller may adjust a segmented transformer of a pulse-generating circuit, changing the number of primary winding switches that are fired, or the timing of the firing of the switches, to modify characteristics of the generated pulses. Adjusting a downhole component may affect the drilling rate, the drilling direction, the flow of drilling fluid, a pulse rise time, a pulse repetition rate, or a rate of penetration for the drilling operation.
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