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公开(公告)号：US20230183561A1
公开(公告)日：2023-06-15
申请号：US18065345
申请日：2022-12-13
Applicant: Chevron U.S.A. Inc.
Inventor： Caleb Kimbrell Carroll , Seung Jin Han , Said Rachid Daher
IPC: C09K8/80
CPC classification number: C09K8/805
Abstract: A method of making a hydraulic fracturing slurry can include contacting an aqueous solution comprising calcium ions with a carbon dioxide source producing a carbonated aqueous solution. Substrate particles can be submerged in the carbonated aqueous solution to produce a calcium carbonate coated proppant wherein the carbon dioxide is sequestered in the calcium carbonate. The calcium coated proppant can be combined with hydraulic fracturing fluid to produce a hydraulic fracturing slurry. Alternatively, the calcium carbonate coated proppant can be combined with silica sand to produce a proppant composition used in a hydraulic fracturing slurry.
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公开(公告)号：US20230183151A1
公开(公告)日：2023-06-15
申请号：US17954420
申请日：2022-09-28
Applicant: CHEVRON U.S.A. INC.
Inventor： Bong-Kyu CHANG , Hye-Kyung Cho TIMKEN , Huping LUO
CPC classification number: C07C2/60 , C07C9/16 , B01J31/0244 , C10L1/06 , C07C2531/02 , C10L2270/023 , C10L2200/0423
Abstract: A process for producing high octane alkylate is provided. The process involves reacting isobutane and ethylene using an ionic liquid catalyst. Reaction conditions can be chosen to assist in attaining, or to optimize, desirable alkylate yields and/or properties.
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93.发明公开公开(公告)号：US20230174873A1
公开(公告)日：2023-06-08
申请号：US17923788
申请日：2021-05-05
Applicant: Chevron U.S.A. Inc.
Inventor： Bi-Zeng ZHAN , Tracy M. DAVIS , Ann Jia-Bao LIANG
CPC classification number: C10G47/04 , B01J6/001 , B01J37/0201 , C10G47/20
Abstract: The present process comprises hydrocracking a hydrocarbon feed in a first stage. The catalyst in the first stage is a conventional hydrocracking catalyst. The product from the first stage can then be transferred to a second hydrocracking stage. The catalyst used in the second stage of the present hydrocracking process comprises a base impregnated with metals from Group 6 and Groups 8 through 10 of the Periodic Table. The base of the catalyst used in the present second hydrocracking stage comprises alumina, an amorphous silica-alumina (ASA) material, a USY zeolite and zeolite ZSM-12.
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公开(公告)号：US20230137100A1
公开(公告)日：2023-05-04
申请号：US17515105
申请日：2021-10-29
Applicant: Chevron U.S.A. Inc.
Inventor： Yonghe J. Sun , Chunling Wu , Mark Chengliang Fan
Abstract: A method is described for seismic imaging improved by an estimation of attenuation including receiving a pre-migration seismic dataset D(s, r; t) representative of a subsurface volume of interest wherein s indicates source location, r indicates receiver location, and t is the recorded travel time; calculating a pre-migration attenuated travel time t*(s, r; t); computing a time derivative of the pre-migration attenuated travel time wherein 1/Q(s, r; t)=∂t*(s, r; t)/∂t; performing a first migration on D(s,r;t) to generate common image point (CIP) gathers G(x, h) wherein x is subsurface image point and h is angle or offset; performing a second migration on D(s, r; t)*1/Q(s, r; t) to generate weighted common image point (CIP) gathers G1/Q(x, h); and calculating a conditioned ratio of the weighted CIP gathers G1/Q(x, h) over the CIP gathers G(x, h) to get CIP gathers of 1/Q(x, h) is disclosed.
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公开(公告)号：US20230135692A1
公开(公告)日：2023-05-04
申请号：US17976171
申请日：2022-10-28
Applicant: Chevron U.S.A. Inc.
Inventor： Wei Wang , Wei Wei , Chao Yan , Gregory A. Winslow , Xinghui Liu , Oya Aysen Karazincir
IPC: G01N15/06
Abstract: A method for evaluating a fluid to reduce a deposition of a solid within a fractured subterranean formation may include obtaining information about materials inside of a testing vessel, where the materials are designed to be representative of the fractured subterranean formation. The method may also include providing a fluid that flows through the materials inside the testing vessel for a period of time, where the testing vessel is subjected to conditions designed to be representative of downhole conditions of the fractured subterranean formation. The method may also include evaluating the material to characterize the deposition of the solid on at least some of the materials after the period of time.
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Patent Agency Ranking
公开(公告)号：US11639475B2
公开(公告)日：2023-05-02
申请号：US17385782
申请日：2021-07-26
Applicant: Chevron U.S.A. Inc.
Inventor： Varut Komalarajun , Theodorus Ludovicus Michael Maesen
IPC: C10G67/02 , B01J23/888 , B01D3/14
Abstract: A hydrocracking process for converting a petroleum feed to lower boiling products. The process comprises hydrotreating a petroleum feed in a pre-treating zone in the presence of hydrogen to produce a hydrotreated effluent stream comprising a liquid product. At least a portion of the hydrotreated effluent stream is then passed to an MMS catalyst zone, and then to a hydrocracking zone. In one embodiment, the MMS catalyst zone comprises a self-supported multi-metallic catalyst prepared from a precursor in the oxide or hydroxide form. The percentage work of the hydrotreating in the pre-treating zone is maintained at a level of at least 56%.
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公开(公告)号：US11638909B2
公开(公告)日：2023-05-02
申请号：US17877626
申请日：2022-07-29
Applicant: Chevron U.S.A. Inc.
Inventor： Joshua Allen Thompson , Dan Xie
IPC: B01D53/04 , B01J20/18 , C01B32/50 , B01D53/047 , B01D53/22 , B01D71/02 , B01J20/28 , B01J20/30 , C01B39/02 , C01B39/46 , C10L3/10 , B01D69/14
Abstract: The present disclosure is directed to processes for the selective separation of carbon dioxide (CO2) from multi-component feedstreams containing CO2. The processes use a potassium-form MER framework type zeolite having a stick-like morphology. The potassium is present in the zeolite as K+ in extra-framework locations, and the zeolite is essentially free of an extra-framework cation other than potassium.
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公开(公告)号：US11638908B2
公开(公告)日：2023-05-02
申请号：US17877593
申请日：2022-07-29
Applicant: Chevron U.S.A. Inc.
Inventor： Dan Xie
IPC: B01J20/18 , B01D53/04 , C01B32/50 , B01D53/047 , B01D53/22 , B01D71/02 , B01J20/28 , B01J20/30 , C01B39/02 , C01B39/46 , C10L3/10 , B01D69/14
Abstract: The present disclosure is directed to a potassium-form MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, wherein the potassium is present as K+ in extra-framework locations. The zeolite is essentially free of an extra-framework cation other than potassium.
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公开(公告)号：US11634970B2
公开(公告)日：2023-04-25
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
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.
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公开(公告)号：US11628429B2
公开(公告)日：2023-04-18
申请号：US17315431
申请日：2021-05-10
Applicant: CHEVRON U.S.A. INC.
Inventor： Dan Xie
Abstract: An aluminum-rich molecular sieve material of MFS framework type, designated SSZ-123, is provided. SSZ-123 can be synthesized using 1-ethyl-1-[5-(triethylammonio)pentyl]piperidinium cations as a structure directing agent. SSZ-123 may be used in organic compound conversion and/or sorptive processes.
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