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Patent Agency Ranking
公开(公告)号：US20160251582A1
公开(公告)日：2016-09-01
申请号：US15016407
申请日：2016-02-05
Applicant: Chevron U.S.A. Inc.
Inventor： Dennis John O'Rear , Russell Evan Cooper , Shabbir Husain
CPC classification number: C10G21/08 , C04B18/0472 , C10G21/28 , C10G2300/205 , E21B43/40
Abstract: A method is provided for recovering mercury from a crude oil into an alkaline ammonium sulfide contacting solution. Soluble mercury complexes in the contacting solution are converted to particulate mercury. The particulate mercury can be recovered by filtering, and the ammonium sulfide in the contacting solution recycled to the aqueous contacting solution.
Abstract translation: 提供了一种从原油中回收到碱性硫化铵接触溶液中的汞的方法。 接触溶液中的可溶性汞络合物转化成颗粒状汞。 可以通过过滤回收颗粒状汞，并将接触溶液中的硫化铵再循环到含水接触溶液中。
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12.发明授权公开(公告)号：US10363518B2
公开(公告)日：2019-07-30
申请号：US15971698
申请日：2018-05-04
Applicant: Chevron U.S.A. Inc.
Inventor： Daniel Chinn , Nitesh Bhuwania , Shabbir Husain , Ronald P. MacDonald , Tapan K. Das
Abstract: Disclosed are systems and methods for increasing oil production in an integrated oil and gas production plant including hydrogen sulfide removal and sour-gas injection into an underground formation. Hydrogen sulfide-selective membranes are used to debottleneck known systems and methods by removing hydrogen sulfide from bottlenecked plant process steps including sour gas compression, hydrogen sulfide removal and sour gas injection. A method of retrofitting an integrated plant includes adding a hydrogen sulfide-selective membrane upstream of an amine unit to remove hydrogen sulfide from an associated gas stream and form a permeate stream enriched in hydrogen sulfide and a retentate stream depleted in hydrogen sulfide and enriched in hydrocarbon gases. Less hydrogen sulfide is sent to the amine unit and oil production is higher than in the integrated plant without the hydrogen sulfide-selective membrane.
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13.发明授权公开(公告)号：US10363517B2
公开(公告)日：2019-07-30
申请号：US15971643
申请日：2018-05-04
Applicant: Chevron U.S.A. Inc.
Inventor： Nitesh Bhuwania , Shabbir Husain , Daniel Chinn , Ronald P. MacDonald , Tapan K. Das
Abstract: Disclosed are systems and methods for producing oil and gas in a plant while removing hydrogen sulfide and water from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Water-selective membranes are used to debottleneck known systems and methods by removing water from bottlenecked sections of the plant including pretreatment of a sour gas feed to one or more gas processing plants. In other aspects, water-selective membranes are used to debottleneck the pretreatment of an acid gas feed to a Claus unit to convert hydrogen sulfide to sulfur in a gas processing plant. The water-selective membranes pretreat the acid gas feed.
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公开(公告)号：US20190105603A1
公开(公告)日：2019-04-11
申请号：US15972262
申请日：2018-05-07
Applicant: Chevron U.S.A. Inc.
Inventor： Nitesh Bhuwania , Shabbir Husain , Daniel Chinn , Ronald P. MacDonald , Tapan K. Das
Abstract: Disclosed are systems and methods for processing gas produced from oil and gas reservoirs while removing mercaptans from the gas. Mercaptan-selective membranes are used to debottleneck known systems and methods by removing mercaptans from bottlenecked plant process steps including LPG fractionation and mercaptan sweetening. Hydrogen sulfide can be simultaneously removed by the membranes. Production of on specification LPG and sales gases can be increased.
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15.发明申请公开(公告)号：US20190105599A1
公开(公告)日：2019-04-11
申请号：US15971643
申请日：2018-05-04
Applicant: Chevron U.S.A. Inc.
Inventor： Nitesh Bhuwania , Shabbir Husain , Daniel Chinn , Ronald P. MacDonald , Tapan K. Das
CPC classification number: B01D53/1468 , B01D53/1456 , B01D53/226 , B01D53/229 , B01D53/265 , B01D2252/204 , B01D2256/24 , B01D2257/304 , C10L3/103 , C10L3/106 , C10L2290/10 , C10L2290/548 , E21B43/34
Abstract: Disclosed are systems and methods for producing oil and gas in a plant while removing hydrogen sulfide and water from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Water-selective membranes are used to debottleneck known systems and methods by removing water from bottlenecked sections of the plant including pretreatment of a sour gas feed to one or more gas processing plants. In other aspects, water-selective membranes are used to debottleneck the pretreatment of an acid gas feed to a Claus unit to convert hydrogen sulfide to sulfur in a gas processing plant. The water-selective membranes pretreat the acid gas feed.
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