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公开(公告)号：US12158062B2
公开(公告)日：2024-12-03
申请号：US18073091
申请日：2022-12-01
Applicant: Saudi Arabian Oil Company
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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2.发明授权公开(公告)号：US11548796B2
公开(公告)日：2023-01-10
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
IPC: C02F1/16 , C02F1/04 , C02F1/00 , B01D1/00 , C02F103/10
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：US20210372275A1
公开(公告)日：2021-12-02
申请号：US16889393
申请日：2020-06-01
Applicant: Saudi Arabian Oil Company
Inventor： Amani Othman Alghamdi , Mohammed Badri Al-Otaibi , Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
IPC: E21B47/13 , E21B49/08 , E21B47/003 , G01S19/07
Abstract: Methods and systems are provided for measuring the zeta potential of macroscopic solid surfaces including and not limited to: porous samples, flat substrates, coarse particles, and granular samples. Methods include: subjecting the sample to an injection of a first aqueous solution at an initial pressure with an initial ion concentration; measuring a first electrical conductivity and a first temperature of the first aqueous solution; measuring a first pH and a second pH of the first aqueous solution immediately before and after passing the first aqueous solution through the sample; measuring a first ion concentration and a second ion concentration of the first aqueous solution immediately before and after passing the first aqueous solution through the sample; and processing the measured data to derive a first zeta potential from the first electrical conductivity and the first temperature.
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4.发明授权公开(公告)号：US10968383B2
公开(公告)日：2021-04-06
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 , C02F1/04 , C02F1/08 , C09K8/58 , C02F9/00 , E21B43/20 , E21B43/24 , E21B43/40 , C02F1/44 , C02F103/08 , C02F1/72 , C02F103/10 , E21B49/08 , E21B47/00
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：US10920129B2
公开(公告)日：2021-02-16
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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Patent Agency Ranking
6.发明申请公开(公告)号：US20200172794A1
公开(公告)日：2020-06-04
申请号：US16783840
申请日：2020-02-06
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) to about 8000 ppm, a polymer having a concentration of 250 ppm to 500 ppm, and metal oxide nanoparticles having a concentration in the range of 0.01 weight (wt) % to 0.05 wt %. 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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7.发明申请公开(公告)号：US20180148633A1
公开(公告)日：2018-05-31
申请号：US15673029
申请日：2017-08-09
Applicant: Saudi Arabian Oil Company
Inventor： Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
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：US20250087443A1
公开(公告)日：2025-03-13
申请号：US18462647
申请日：2023-09-07
Applicant: Saudi Arabian Oil Company
Inventor： Dong Kyu Cha , Hassan Alqahtani , Mohammed Al Otaibi , Subhash Chandrabose Ayirala , Ali Abdallah Al-Yousef
Abstract: A system and methods for in situ characterization of nanobubbles in enhanced oil recovery (EOR) are provided. In an exemplary system, a cell includes a metal case including a rectangular shape, wherein the rectangular shape includes five sides and an opening in place of a sixth (top) side, a flow inlet, and a flow outlet. The nanofluidic cell includes a calcite patterned silicon substrate mounted in the metal case, wherein a calcite patterned surface is disposed towards the opening. A transparent lid is mounted over the opening, wherein the transparent lid is in direct contact with calcite structures on the calcite patterned silicon substrate.
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公开(公告)号：US12247161B2
公开(公告)日：2025-03-11
申请号：US18310299
申请日：2023-05-01
Applicant: Saudi Arabian Oil Company
Inventor： Hamoud Alqahtani , Zuhair Ali AlYousif , Subhash Chandrabose Ayirala , Muhammad Majid Almajid , Ali Abdullah Al-Taq
IPC: E21B36/00 , C09K8/512 , C09K8/516 , E21B33/138
Abstract: A method for sealing a high permeability region in a reservoir is provided. The method includes injecting a gel precursor solution into a high permeability region in a reservoir, injecting a sodium nitrite solution proximate to the high permeability region, and injecting an ammonium chloride solution proximate to the high permeability region. The ammonium chloride solution and the sodium nitrite solution are mixed proximate to the high permeability region. The ammonium chloride solution and the sodium nitrite solution are allowed to react, increasing the temperature of the reservoir proximate to the high permeability region. The gel precursor solution is allowed to react to form a solid gel in the high permeability region.
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公开(公告)号：US20240368451A1
公开(公告)日：2024-11-07
申请号：US18310299
申请日：2023-05-01
Applicant: Saudi Arabian Oil Company
Inventor： Hamoud Alqahtani , Zuhair Ali AlYousif , Subhash Chandrabose Ayirala , Muhammad Majid Almajid , Ali Abdullah Al-Taq
IPC: C09K8/516 , C09K8/512 , E21B33/138
Abstract: A method for sealing a high permeability region in a reservoir is provided. The method includes injecting a gel precursor solution into a high permeability region in a reservoir, injecting a sodium nitrite solution proximate to the high permeability region, and injecting an ammonium chloride solution proximate to the high permeability region. The ammonium chloride solution and the sodium nitrite solution are mixed proximate to the high permeability region. The ammonium chloride solution and the sodium nitrite solution are allowed to react, increasing the temperature of the reservoir proximate to the high permeability region. The gel precursor solution is allowed to react to form a solid gel in the high permeability region.
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