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公开(公告)号:US20230312862A1
公开(公告)日:2023-10-05
申请号:US18128306
申请日:2023-03-30
Applicant: Chevron U.S.A. Inc.
Inventor: Tengfei LIU , Joel E. SCHMIDT , Hye-Kyung C. TIMKEN , Richard L. GROVE , Kaidong CHEN
IPC: C08J11/14 , C08F110/02
CPC classification number: C08J11/14 , C08F110/02 , C08J2323/06
Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and passed to a steam cracker to make ethylene.
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公开(公告)号:US20230304389A1
公开(公告)日:2023-09-28
申请号:US17656185
申请日:2022-03-23
Applicant: Chevron U.S.A. Inc.
Inventor: Matthew Scott Bolen , Devanand Ramchune , Ryan Michael Weller
CPC classification number: E21B44/02 , G05B13/048 , G05B13/042 , E21B2200/20
Abstract: A system and method for calculating optimal parameters for drilling are provided. The system includes a memory, a data storage unit, and a processor. The method comprises retrieving well information, analyzing the information, reading current and past well parameters, and calculating an optimal set of parameters by a predetermined algorithm.
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73.
公开(公告)号:US11760921B2
公开(公告)日:2023-09-19
申请号:US16635904
申请日:2018-07-31
Applicant: CHEVRON U.S.A. INC.
Inventor: Dustin L. Walker , Gayani W. Pinnawala , Nabijan Nizamidin , Varadarajan Dwarakanath , Guo-Qing Tang , Dustin J. Lowry , Tetsuo Art Inouye , Taimur Malik
CPC classification number: C09K8/604 , C09K8/602 , C09K8/68 , C09K8/74 , C09K8/80 , C09K8/86 , E21B43/267 , E21B43/27 , E21B47/11 , C09K2208/10 , C09K2208/12 , C09K2208/26 , C09K2208/28 , C09K2208/32
Abstract: Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises a non-ionic surfactant and optionally one or more secondary surfactants.
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公开(公告)号:US20230288593A1
公开(公告)日:2023-09-14
申请号:US17654630
申请日:2022-03-14
Applicant: Chevron U.S.A. Inc.
Inventor: Jinsong Chen , Huafeng Liu , Andrey Hanan Shabelansky , Cory James Hoelting , Min Yang , Ying Tan , Maisha Lara Amaru
CPC classification number: G01V1/345 , G01V1/282 , G06N7/005 , G01V2210/74 , G01V2210/60
Abstract: A method is described for seismic depth uncertainty analysis including receiving wavelet basis functions and cutoff thresholds and randomly perturbing wavelet coefficients in reduced wavelet space based on the wavelet basis functions and the cutoff thresholds to generate a plurality of random wavelet fields; receiving a reference model in a depth domain; transforming the plurality of random wavelet fields to the depth domain and combining them with the reference model to form candidate models; performing a hierarchical Bayesian modeling with Markov Chain Monte Carlo (MCMC) sampling methods using the candidate models as input to generate a plurality of realizations; and computing statistics of the plurality of realizations to estimate depth uncertainty. The method may be executed by a computer system.
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公开(公告)号:US20230286818A1
公开(公告)日:2023-09-14
申请号:US17691563
申请日:2022-03-10
Applicant: CHEVRON U.S.A. INC.
Inventor: Dan XIE
IPC: C01B39/46
CPC classification number: C01B39/46 , C01P2002/72 , C01P2004/03
Abstract: An organotemplate-free synthetic process for synthesizing an aluminosilicate molecular sieve SSZ-122 is provided. The process includes (1) preparing a reaction mixture comprising: (a) a silicon atom source; (b) an aluminum atom source; (c) a source of an alkali metal [M]; (d) a source of hydroxide ions; (e) water; and (f) seed crystals; and (2) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the aluminosilicate molecular sieve.
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公开(公告)号:US20230278858A1
公开(公告)日:2023-09-07
申请号:US18116214
申请日:2023-03-01
Applicant: CHEVRON U.S.A. INC.
Inventor: Xiaoying Ouyang , Alexander Kuperman , Huping Luo , Lin Li
IPC: C01B3/26 , B01J23/745 , B01J21/08 , B01J21/06 , B01J27/224 , B01J23/06 , B01J21/04 , B01J23/755 , B01J29/46 , B01J23/83 , B01J37/08 , B01J37/06 , B01J37/02 , B01J35/04
CPC classification number: C01B3/26 , B01J23/745 , B01J21/08 , B01J21/063 , B01J27/224 , B01J23/06 , B01J21/04 , B01J23/755 , B01J29/46 , B01J23/83 , B01J37/086 , B01J37/06 , B01J37/0201 , B01J35/04 , B01J37/0236 , C01B2203/1241 , C01B2203/1058 , C01B2203/1076
Abstract: The present disclosure refers to systems, methods, and catalysts for conversion of a hydrocarbon to hydrogen. The catalyst typically comprises a matrix comprising fused silica, quartz, glass, a zeolite, Si3N4, SiC, SiCxOy wherein 4x+2y =4, SiOaNb wherein 2a+3b =4, BN, TiO2, ZrO2, Al2O3, CeO2, Nb2O5, La2O3, a perovskite, or any mixture thereof. A metal dopant is embedded in the matrix. The metal dopant comprises Fe, Ni, Co, Cu, Zn, Mn, or any mixture thereof.
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公开(公告)号:US20230258838A1
公开(公告)日:2023-08-17
申请号:US17672486
申请日:2022-02-15
Applicant: Chevron U.S.A. Inc.
Inventor: Prasenjit Roy , Yang Zhang , Xinfa Zhu , Reynaldo Cardona , Yong Hua , Kun Fu , Bassel Mouloud Almoughraby
CPC classification number: G01V1/50 , G01V1/46 , G01V1/003 , G06K9/6256 , G01V2210/1299 , G01V2210/62
Abstract: Well data (e.g., well log) may be divided into multiple segments, and different samplings of data in the individual segments may be performed to increase the amount of data that is used to train a seismic inversion model. Synthetic well data may be generated from real well data to increase the amount of well data from which sampling is performed.
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78.
公开(公告)号:US20230213434A1
公开(公告)日:2023-07-06
申请号:US18001400
申请日:2021-06-11
Applicant: Chevron U.S.A. Inc.
Inventor: John Alasdair Cameron , Colin Jones , Hariprasad JANAKIRAM SUBRAMANI , Lee D. Rhyne , Antonio Lazo
IPC: G01N17/04
CPC classification number: G01N17/046
Abstract: Disclosed are systems and methods for detecting the erosion and corrosion effects of solids during oil and/or gas production. An erosion corrosion detector (BCD) is positioned in fluid communication with a pipe in a production facility such that a sensor element of the BCD contacts at least a partial stream of produced fluid in the pipe. Changes in one or more physical measurement of the BCD and/or changes in pressure drop across the sensor element are monitored over time. The changes are interpreted to identify whether there is loss of materials (e.g., metal) in the production facility, quantify of this loss, and determine the mechanisms through which this loss is occurring. A control system can receive the change in the physical measurement and/or the pressure drop over time as input into a control strategy for controlling a well control valve to control a rate of production of well fluids.
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公开(公告)号:US20230194320A1
公开(公告)日:2023-06-22
申请号:US18145740
申请日:2022-12-22
Applicant: Chevron U.S.A. Inc.
Abstract: A system and method of estimating a flow rate through a pipe using thermodynamics. The flow rates are estimated by using fluid properties, reservoir properties, pump properties, and heat transfer properties. Additionally, historical well data can be used to create a model that is used to estimate flow rate through a pipe.
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公开(公告)号:US11679987B2
公开(公告)日:2023-06-20
申请号:US17317469
申请日:2021-05-11
Applicant: Chevron U.S.A. Inc.
Inventor: Adeola Florence Ojo , Dan Xie , Yihua Zhang , Guan-Dao Lei
IPC: B01J29/06 , C01B39/02 , B01J29/74 , C01B39/46 , B01J29/70 , B01J29/80 , B01J35/00 , C01B39/48 , B01J29/72 , B01J29/76 , C07C5/13
CPC classification number: C01B39/023 , B01J29/703 , B01J29/7023 , B01J29/7034 , B01J29/7246 , B01J29/7261 , B01J29/7446 , B01J29/7461 , B01J29/7646 , B01J29/7661 , B01J29/80 , B01J35/002 , C01B39/46 , C01B39/48 , C01P2002/72 , C01P2004/54 , C07C5/13 , C07C2529/72 , C07C2529/74 , C07C2529/76
Abstract: A family of new crystalline molecular sieves designated SSZ-91 is disclosed, as are methods for making SSZ-91 and uses for SSZ-91. Molecular sieve SSZ-91 is structurally similar to sieves falling within the ZSM-48 family of molecular sieves, and is characterized as: (1) having a low degree of faulting, (2) a low aspect ratio that inhibits hydrocracking as compared to conventional ZSM-48 materials having an aspect ratio of greater than 8, and (3) is substantially phase pure.
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