Saudi Arabian Oil Company

Ali AlYousef

Abdulaziz S Al-Qasim

Hyung Tae Kwak

Ming Han

Dong Kyu Cha

Muhammad Majid Almajid

Jun Gao

Zuhair AlYousef

Subhash Ayirala

Hydrocarbon extraction may be coupled with subterranean hydrogen storage. For example, a method of hydrocarbon extraction and hydrogen storage may include: introducing carbon dioxide into a subterranean formation via one or more injection wells, the subterranean formation containing hydrocarbons and optionally water; mobilizing at least a portion of the hydrocarbons in a hydrocarbon-bearing zone of the subterranean formation with the carbon dioxide; after mobilization with the carbon dioxide, producing the hydrocarbons from the hydrocarbon-bearing zone of the subterranean formation via one or more production wells; introducing hydrogen to the subterranean formation via the one or more injection wells, the hydrogen displacing the carbon dioxide downward in the subterranean formation; storing the hydrogen in the subterranean formation above the carbon dioxide; and producing at least a portion of the hydrogen from the subterranean formation via the one or more production wells, the one or more injection wells, or any combination thereof.

Carbon dioxide enhanced hydrocarbon recovery methods coupled with underground hydrogen storage

A method to improve the efficiency of a gravity drainage CO2 gas injection process includes the steps of: (a) injecting a slug proximate to an underground reservoir, wherein the slug comprises a polymer component and an inorganic metal ion type crosslinking agent that are configured to form an in situ weak gel in the reservoir to block high permeability channels in a pay zone of the reservoir; and (b) continuously injecting COgas at a top of the pay zone to form a gas cap at the top of the reservoir and to cause the gas cap to advance rapidly towards a producing well located below to provide a uniform sweep of the gas cap.

Methodology to improve the efficiency of gravity drainage CO2 gas injection processes

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Dhahran, Saudi Arabia

Ali AlYousef