Saudi Arabian Oil Company

Subhash Chandrabose Ayirala

Ali Abdallah Al-Yousef

Abdulkareem M Al-Sofi

Ali Yousef

Dong Kyu Cha

Muhammad Majid Almajid

Abdulaziz S Al-Qasim

Zuhair AlYousif

Jinxun Wang

Mohammed Badri Alotaibi

Moataz Abu AlSaud

Ali Abdullah Al-Taq

Zuhair Al-Yousif

Zuhair AlYousef

Abdulrahman Aljedaani

Hamoud Alqahtani

Amani Othman Alghamdi

Ming Han

Salah Hamad Al-Saleh

Ahmed Gmira

Mustafa Alkhowaildi

Sultan M Enezi

Ali Abdallah Alyousef

Mohammed Badri AlOtaibi

Moataz Abu Al Saud

Hussain Habib Al Saleem

Sunil Kokal

Adrian Cesar Cavazos Sepulveda

Abdulkareem AlSofi

Miguel Gonzalez

Abdulkareem M Alsofi

Quan Chen

Mohammed Badri Al-Otaibi

Shiv Shankar Sangaru

Ali Abdullah Al-Yousef

Dongqing Cao

Salah H Alsaleh

Deena Tayyib

Abdulaziz S Qasim

Zuhair A Al-Yousef

Salem Alshammari

Muhannad Alabdullateef

Pramod Dhanaji Patil

Ahmed Al-Eidan

Majed Almubarak

Abdulkarim Sofi

Lyla Maskeen

Ali Abdullah Altaq

Sultan Alenezi

Saleh Hamad Al-Salah

Salem Khaled Al-Shammari

Ghaida Al Juhani

Salah Seleh

Bora Yalcin

Waleed Mohammed Alhodythi

Zuhair Alyousef

Ammar AlShehri

Sultan Al-Enezi

Moataz Abu Alsaud

A method of enhancing recovery of hydrocarbons from a formation includes providing a carbonated fluid, reacting a first salt solution with a second salt solution to provide heat, displacing carbon dioxide from the carbonated fluid, sweeping the formation with the displaced carbon dioxide, mixing the displaced carbon dioxide with at least a portion of the hydrocarbons in the vertical regions, thereby producing a mixture, and producing the mixture via a production well in the formation, thereby enhancing recovery of the hydrocarbons from the formation. A system for controlling the release of carbon dioxide from carbonated water and enhancing oil recovery from a hydrocarbon bearing formation includes an injection system in fluid communication with an injection well that is in fluid communication with a production well via a hydraulic connection.

Enhanced oil recovery using carbonated water and two salt solutions

Method of producing hydroxides for use in carbon dioxide mineralization, the method including adding a first amount of sodium hydroxide to a produced oilfield brine to precipitate Mg(OH), adding a second amount of sodium hydroxide to precipitate Ca(OH), filtering the precipitates, and adding an amount of the filtered precipitates to an aqueous carbon dioxide solution.

Extraction of alkaline earth metal hydroxides from produced oilfield brine

A method for sequestering COin a subterranean formation and a method for sequestering COin a subterranean formation during an enhanced oil recovery treatment include preparing a solution comprising COand from 0.01% by weight (wt. %) to 10 wt. % of a COsoluble alkoxylate surfactant based on the total weight of CO, processing the solution through a dispersing unit in fluid communication with an injection well, and injecting the dispersion into the injection well of the formation, thereby sequestering COin the formation. The method for sequestering COin a subterranean formation during an enhanced oil recovery treatment includes introducing an enhanced oil recovery treatment to the formation. A system for sequestering COin a formation includes an injection well in fluid communication with a formation, an injection unit, and a dispersing unit that is in fluid communication with the injection unit and the injection well.

Surfactant formulation and method for water flood assisted COsequestration

Described is a method for enhanced carbon dioxide (CO) sequestration in geological formations. The method includes dissolving COin a low salinity fluid to form a CO-brine solution. The low salinity fluid includes sodium (Na) ions and sulfate (SO) ions. The CO-brine solution is injected into a geological formation, and the COreacts with the geological formation to produce solid carbonate minerals for COsequestration.

Method for enhanced storage of carbon dioxide in geological formations

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.

Gel formation from reaction heating

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.

Sweep efficiency of carbon dioxide gas injection

Enhanced hydrocarbon recovery methods may include use of carbonated aqueous fluids. Methods for enhanced hydrocarbon recovery may include: introducing a carbonated aqueous fluid into a subterranean reservoir, the carbonated aqueous fluid including carbon dioxide; introducing a first salt solution and a second salt solution into the subterranean reservoir after introducing the carbonated aqueous fluid; contacting the first salt solution with the second salt solution in the subterranean reservoir under conditions where the first salt and the second salt undergo an exothermic reaction; and heating the carbonated aqueous fluid with heat produced via the exothermic reaction; wherein at least a portion of the carbon dioxide is released from the carbonated aqueous fluid upon heating and migrates from a lower portion to an upper portion of the subterranean reservoir, and a decarbonated saline solution is generated from the carbonated aqueous fluid from which the carbon dioxide is released.

In-reservoir carbon dioxide release for enhanced hydrocarbon recovery

A system for electrical treatment in a reservoir with gas wells is disclosed. The system includes a first well in the reservoir configured to act as an electrode, the reservoir having a plurality of pore spaces saturated by water, and a second well in the reservoir configured to act as a second electrode hydraulically connected to the first well. A power unit is connected to the first and second wells by a cable configured to emit an electric current to the first well and the second well into the reservoir. The electric current enlarges the plurality of pore spaces in the reservoir, facilitating a production of gas from the water. A transformer is connected to the power unit by the cable, the transformer being configured to step down a voltage from a power supply to the power unit. The power supply is connected to the transformer by the cable.

Electrical treatment to revive dead gas wells due to water blockage

A system includes production tubing extending through at least one abandoned well, where an annulus is formed between the tubing and a wellbore wall of the abandoned well, at least one source of water feed connected to an opening to the annulus, at least one pump connected between the source of water feed and the annulus, and a humidification-dehumidification unit with at least one humidification chamber fluidly connected to the production tubing. At least one condensation chamber is connected to the humidification chamber, a waste water outlet is connected to the humidification chamber, and a purified water outlet is connected to the condensation chamber.

Systems for humidification dehumidification that use waste heat extracted from abandoned wells

A method of enhancing heat transfer and energy efficiency in a geothermal reservoir includes injecting a carbonated fluid to the reservoir, injecting a first salt solution and a second salt solution into the reservoir, and increasing the temperature of the reservoir by reacting the first salt solution with the second salt solution to provide heat. The carbonated fluid injection decreases a temperature of the reservoir. The second salt solution is reactive with the first salt solution under the conditions in the reservoir after the injecting. A system of enhancing heat transfer and energy efficiency in a geothermal reservoir includes an injection system in fluid communication with an injection well. The injection system is configured to alternate the injection of the carbonated fluid and the first salt solution and second salt solution.

Thermochemical fluid injection to prevent cool front invasion in COgeothermal reservoirs

Provided are methods of increasing the production of a hydrocarbon from a subterranean formation by waterflooding with injection solutions containing dihydrogen phosphate ions.

Method of waterflooding using injection solutions containing dihydrogen phosphate

A solution for injection to a formation containing hydrocarbons includes an ionic liquid and a brine having a salinity of at least 60,000 ppm total dissolved solids (TDS). The ionic liquid is configured to lower an interfacial tension between the solution and the hydrocarbons in the formation.

Reuse of hypersaline brine with ionic liquids

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.

Alternating microsphere and smartwater injection for enhanced oil recovery

A method for recovering hydrocarbons from a hydrocarbon bearing formation includes introducing a first solution having a first salt into the hydrocarbon bearing formation. A second solution is also introduced into the hydrocarbon bearing formation, wherein the second solution has a second salt and a foaming agent. The first salt and the second salt produces a nitrogen gas, and the nitrogen gas and the foaming agent produces a foam formed in-situ within the formation. The foam forms a foam barrier, and carbon dioxide is introduced into the formation to form a gas cap, wherein the carbon dioxide gas cap has a gas front that is separated from the hydrocarbons by the foam barrier.

Insitu foam generation to fasten and increase oil production rates in gravity drainage COgas injection

A method and a system for oil recovery are provided. An exemplary method includes injecting thickened carbon dioxide (CO) into the top of a reservoir containing oil. An interface is formed between the thickened COand the oil. The oil is mobilized by the thickened CO. The mobilized oil is recovered with a recovery well drilled below the reservoir.

Thickened COin gravity drainage gas injection processes

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Dhahran, Saudi Arabia

Subhash Chandrabose Ayirala