-
公开(公告)号：US11242735B2
公开(公告)日：2022-02-08
申请号：US17164294
申请日：2021-02-01
Applicant: CHEVRON U.S.A. INC.
Inventor： Stein J. Storslett , John Segerstrom
IPC: E21B43/24
Abstract: A process is provided for recovering hydrocarbons, such as heavy oils, from a subterranean reservoir. The process includes providing a subcritical or a supercritical aqueous fluid at a high temperature and high pressure to the underground hydrocarbon reservoir, injecting the aqueous fluid into the reservoir to heat the hydrocarbons in the reservoir, and recovering the heated hydrocarbons from the reservoir. In some cases, the supercritical fluid is also used to upgrade the hydrocarbons and/or facilitate the transportation of the hydrocarbons from the production field to another location, such as a refinery. Advantageously, isentropic expansion may be employed anywhere in the system for a more efficient and effective processes and systems.
-
公开(公告)号：US20160018102A1
公开(公告)日：2016-01-21
申请号：US14799091
申请日：2015-07-14
Applicant: Chevron U.S.A. Inc.
Inventor： Thomas F. Robertson , John J. Nowakowski , Mark C. Hannum , Stein J. Storslett
CPC classification number: F23C9/08 , F23C5/08 , F23C6/047 , F23C2202/20
Abstract: A steam generator system employing a fired burner with a flue gas recirculation system with low NOx emission is disclosed. A method to retrofit fired burners for low NOx emission is also disclosed. In the system, the flue gas recirculation system is configured to include a pre-mixer, and the recirculated flue gas (RFG) is routed to the stage of the pre-mixer for mixing with a portion of the fuel stream, forming a secondary RFG fuel mixture. The secondary RFG fuel mixture is routed to the secondary stage of the burner via a plurality of injector ports. The injection of the second RFG fuel mixture results in a reduction of temperature for the NOx emission to be less than 5 ppm at 3% O2, dry basis.
Abstract translation: 公开了一种使用具有低NOx排放的烟道气再循环系统的燃烧式燃烧器的蒸汽发生器系统。 还公开了一种改进低NOx排放的燃烧式燃烧器的方法。 在系统中，烟道气再循环系统被配置为包括预混合器，并且再循环烟道气（RFG）被引导到预混合器的阶段以与一部分燃料流混合，形成次级RFG 燃料混合物 次级RFG燃料混合物经由多个注射器端口被引导到燃烧器的二级。 第二RFG燃料混合物的注入导致NOx排放的温度在3％O 2（干基）下小于5ppm。
-
Patent Agency Ranking
公开(公告)号：US20150322759A1
公开(公告)日：2015-11-12
申请号：US14746367
申请日：2015-06-22
Applicant: Chevron U.S.A. Inc.
Inventor： Michal Okoniewski , Damir Pasalic , Pedro Vaca , Gunther Hans Dieckmann , Donald Leroy Kuehne , Miguel Vigil , Stein J. Storslett
IPC: E21B43/24
CPC classification number: E21B43/2401 , H01Q1/04 , H01Q1/1271 , H01Q1/38 , H01Q9/22 , H01Q9/26 , H01Q9/28 , H01Q9/285 , H01Q9/30 , H01Q13/203 , H01Q19/10 , H01Q21/24 , Y10T29/49016
Abstract: A system for in-situ heating of a subsurface formation for the extraction of hydrocarbons in underground deposits is disclosed. The system is configured to heat the underground deposit of hydrocarbons to facilitate fluid flow and hydrocarbon recovery from the underground deposit. The system has an antenna formed from a coaxial transmission line having an annular space between the transmission line outer conductor and the inner conductor and having one or more periodic aperture arrangements along the axial length of the outer conductor. A method for in-situ heating of a subsurface formation for recovering hydrocarbons contained therein is also disclosed. The method comprises: providing an antenna in the subsurface formation; providing electromagnetic RF power to the antenna for heating at least a portion of the subsurface formation.
Abstract translation: 公开了一种用于地下加热地下地层以提取地下沉积物中的碳氢化合物的系统。 该系统被配置为加热烃的地下沉积物以促进流体流动并从地下沉积物中回收碳氢化合物。 该系统具有由同轴传输线形成的天线，该同轴传输线在传输线外部导体和内部导体之间具有环形空间，并具有沿着外部导体的轴向长度的一个或多个周期性孔径布置。 还公开了一种用于地下加热用于回收其中所含的烃的地下地层的方法。 该方法包括：在地下地层中提供天线; 向所述天线提供电磁RF功率以加热所述地下地层的至少一部分。
-
4.发明授权公开(公告)号：US10077644B2
公开(公告)日：2018-09-18
申请号：US14208525
申请日：2014-03-13
Applicant: Chevron U.S.A. Inc.
Inventor： Stein J. Storslett , Rick B. Spielman
Abstract: An apparatus and method for generating high-pressure pulses in a subterranean dielectric medium are provided. The method includes providing an electrode assembly in the medium, the electrode assembly having first and second electrodes that define a gap therebetween. A shaped electric current pulse is delivered to the electrode assembly. The electric current pulse has a duration greater than 100 μs so that an electric arc is formed between the first and second electrodes, thereby producing a pressure pulse in the medium.
-
公开(公告)号：US09598945B2
公开(公告)日：2017-03-21
申请号：US14746367
申请日：2015-06-22
Applicant: Chevron U.S.A. Inc.
Inventor： Michal Okoniewski , Damir Pasalic , Pedro Vaca , Gunther Hans Dieckmann , Donald Leroy Kuehne , Miguel Vigil , Stein J. Storslett
IPC: H01Q9/28 , E21B43/24 , H01Q1/04 , H01Q9/22 , H01Q13/20 , H01Q9/30 , H01Q19/10 , H01Q1/12 , H01Q9/26 , H01Q21/24 , H01Q1/38
CPC classification number: E21B43/2401 , H01Q1/04 , H01Q1/1271 , H01Q1/38 , H01Q9/22 , H01Q9/26 , H01Q9/28 , H01Q9/285 , H01Q9/30 , H01Q13/203 , H01Q19/10 , H01Q21/24 , Y10T29/49016
Abstract: A system for in-situ heating of a subsurface formation for the extraction of hydrocarbons in underground deposits is disclosed. The system is configured to heat the underground deposit of hydrocarbons to facilitate fluid flow and hydrocarbon recovery from the underground deposit. The system has an antenna formed from a coaxial transmission line having an annular space between the transmission line outer conductor and the inner conductor and having one or more periodic aperture arrangements along the axial length of the outer conductor. A method for in-situ heating of a subsurface formation for recovering hydrocarbons contained therein is also disclosed. The method comprises: providing an antenna in the subsurface formation; providing electromagnetic RF power to the antenna for heating at least a portion of the subsurface formation.
-
公开(公告)号：US10281140B2
公开(公告)日：2019-05-07
申请号：US14799091
申请日：2015-07-14
Applicant: Chevron U.S.A. Inc.
Inventor： Thomas F. Robertson , John J. Nowakowski , Mark C. Hannum , Stein J. Storslett
Abstract: A steam generator system employing a fired burner with a flue gas recirculation system with low NOx emission is disclosed. A method to retrofit fired burners for low NOx emission is also disclosed. In the system, the flue gas recirculation system is configured to include a pre-mixer, and the recirculated flue gas (RFG) is routed to the stage of the pre-mixer for mixing with a portion of the fuel stream, forming a secondary RFG fuel mixture. The secondary RFG fuel mixture is routed to the secondary stage of the burner via a plurality of injector ports. The injection of the second RFG fuel mixture results in a reduction of temperature for the NOx emission to be less than 5 ppm at 3% O2, dry basis.
-
公开(公告)号：US10012063B2
公开(公告)日：2018-07-03
申请号：US14208622
申请日：2014-03-13
Applicant: Chevron U.S.A. Inc.
Inventor： Stein J. Storslett , Rick B. Spielman
Abstract: A method, system, and electrode assembly are disclosed that maximizes the lifetime of electrodes for high energy electrical discharges in water by arranging the electrodes in concentric rings or a stack of concentric rings. The radii and the thickness of the ring electrodes are optimized for electrical reliability, low jitter, and minimal erosion. In one embodiment, the electrode assembly is configured to be disposed in a subterranean dielectric medium, receive an electric current pulse having a length of time greater than 100 microseconds, and form an electric arc between the first electrode and the second electrode, thereby producing a pressure pulse axially away from the insulator.
-
-
-
-
-
-
Search Results
7
records
(took 0.012 seconds)
