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31.发明申请公开(公告)号：US20190136117A1
公开(公告)日：2019-05-09
申请号：US16235562
申请日：2018-12-28
Applicant: Saudi Arabian Oil Company
Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include sodium sulfate (Na2SO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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32.发明申请公开(公告)号：US20180179436A1
公开(公告)日：2018-06-28
申请号：US15903952
申请日：2018-02-23
Applicant: Saudi Arabian Oil Company
Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 5000 parts-per-million (ppm) to about 6000 ppm and a polymer having a concentration of 250 ppm to 500 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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公开(公告)号：US20240183256A1
公开(公告)日：2024-06-06
申请号：US18073091
申请日：2022-12-01
Applicant: Saudi Arabian Oil Company
CPC classification number: E21B43/168 , E21B7/046 , E21B43/164
Abstract: Methods and systems for producing oil from a subsurface reservoir include drilling a horizontal production well into the subsurface reservoir and drilling a horizontal injection well into the subsurface reservoir below the horizontal production well. Carbon dioxide and a second gas are mixed to form a gas mixture with a density more than a density of reservoir fluids between the horizontal production well and the horizontal injection well. The gas mixture is injected into the subsurface formation through the horizontal injection well and fluid is produced from the subsurface reservoir through the horizontal production well.
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公开(公告)号：US11840921B2
公开(公告)日：2023-12-12
申请号：US17249461
申请日：2021-03-02
Applicant: Saudi Arabian Oil Company
Inventor： Dong Kyu Cha , Mohammed Badri AlOtaibi , Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
IPC: E21B43/16 , E21B47/113 , B82Y30/00
CPC classification number: E21B47/113 , E21B43/164 , B82Y30/00
Abstract: Methods for fabricating a sensor module for detecting carbon dioxide leakage from a subsurface reservoir are disclosed. The methods include attaching anodic aluminum oxide porous membrane onto a first conductive electrode to form an anodic aluminum oxide template; initiating growth of a plurality of TiO2 nanotubes inside the AAO template using an atomic layer deposition process; removing the anodic aluminum oxide template from the first metal electrode leaving the plurality of TiO2 nanotubes on the first conductive electrode; attaching a second conductive electrode to the plurality of TiO2 nanotubes; connecting the first and the second conductive electrodes with an electric line to form a sensor; providing a rollable sheet of non-conductive material; and attaching a plurality of sensors to the rollable sheet of non-conductive material forming the sensor module.
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公开(公告)号：US20230220754A1
公开(公告)日：2023-07-13
申请号：US17571257
申请日：2022-01-07
Applicant: Saudi Arabian Oil Company
Inventor： Subhash Chandrabose Ayirala , Dongqing Cao , Ming Han , Saleh Hamad Al-Salah , Ali Yousef
CPC classification number: E21B43/20 , E21B43/162 , C09K8/588
Abstract: A method for enhanced oil recovery in a reservoir is provided. The method includes injecting a microsphere suspension, including polymeric microspheres dispersed in seawater, into an injection well in the reservoir and injecting a low salinity tailored water (SmartWater) into the injection well in the reservoir. Oil is produced from a production well in the reservoir.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20220289596A1
公开(公告)日：2022-09-15
申请号：US17197441
申请日：2021-03-10
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Abdulrahman Aljedaani , Mohammed Badri AlOtaibi , Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
Abstract: A method may include providing a humidification-dehumidification unit proximate one or more abandoned wells, circulating a water feed through the one or more abandoned wells, using geothermal heat in the one or more abandoned wells to heat the water feed, directing the heated water feed to the humidification-dehumidification unit, and treating the heated water feed in the humidification-dehumidification unit to provide purified water.
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公开(公告)号：US11414986B1
公开(公告)日：2022-08-16
申请号：US17190271
申请日：2021-03-02
Applicant: Saudi Arabian Oil Company
Inventor： Dong Kyu Cha , Mohammed Badri AlOtaibi , Subhash Chandrabose Ayirala , Zuhair Al-Yousif , Ali Abdallah Al-Yousef
IPC: E21B47/113 , E21B47/12 , E21B47/017 , G01M3/16 , E21B41/00 , E21B43/16
Abstract: Downhole drilling tools and methods for drilling and detecting carbon dioxide leakage in a subsurface reservoir are disclosed. The tools include a cylindrical body; a sensor module including a plurality of sensors including a first conductive electrode, a second conductive electrode, and a plurality of TiO2 nanotubes, and an electric line located between and connecting the first and the second conductive electrodes; and a communication device communicatively connected to the sensor module; wherein the sensor module and the communication device are attached to an outer surface of the cylindrical body.
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38.发明申请公开(公告)号：US20200224079A1
公开(公告)日：2020-07-16
申请号：US16832921
申请日：2020-03-27
Applicant: Saudi Arabian Oil Company
Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 4000 parts-per-million (ppm) total dissolved solids (TDS) to about 8000 ppm TDS and a polymer having a concentration of 250 ppm to 750 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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39.发明申请公开(公告)号：US20200040253A1
公开(公告)日：2020-02-06
申请号：US16597448
申请日：2019-10-09
Applicant: Saudi Arabian Oil Company
Inventor： Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
IPC: C09K8/594 , C02F1/08 , C02F1/44 , C02F1/04 , C02F9/00 , C09K8/58 , E21B43/20 , E21B43/24 , E21B43/40
Abstract: Disclosed are water treatment apparatus and processes for the generation of injection water from seawater and produced water. The first water treatment apparatus includes a reverse osmosis (RO) unit that treats the seawater, a pretreatment unit that pretreats the produced water, and a carrier gas extraction (CGE) unit or dynamic vapor recompression (DyVaR) that treats the pretreated produced water and generates fresh water. The fresh water and the RO permeate are mixed with a portion of the seawater to generate the injection water. A second water treatment apparatus includes a reverse osmosis (RO) unit and a nanofiltration (NF) that treats the seawater in parallel, a pretreatment unit that pretreats the produced water, and a CGE unit or DyVaR unit that treats the pretreated produced water and generates fresh water. The fresh water and the RO permeate are mixed with the NF reject to generate injection water.
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公开(公告)号：US10550312B2
公开(公告)日：2020-02-04
申请号：US16273956
申请日：2019-02-12
Applicant: Saudi Arabian Oil Company
Abstract: An oil recovery composition of an aqueous solution of one or more salts and dilute polymer and processes for enhanced oil recovery using the oil recovery composition are provided. An oil recovery composition may include an aqueous solution of one or more salts having a salinity of about 4000 parts-per-million (ppm) total dissolved solids (TDS) to about 8000 ppm TDS and a polymer having a concentration of 250 ppm to 750 ppm. The one or more salts may include at least one of sodium chloride (NaCl), calcium chloride (CaCl2), magnesium chloride (MgCl2), sodium sulfate (Na2SO4) and magnesium sulfate (MgSO4). The polymer may include a copolymer of acrylamide and acrylamido tertiary butyl sulfonate (ATBS). The oil recovery compositions provided may be suited for enhancing oil recovery in carbonate reservoirs having in situ oil viscosities less than 3 centipoise (cP).
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