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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-2026042611-A1, on 12 February 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000002943

Eliminating microbial hydrogen consumption in subsurface hydrogen storage

Published
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Classification
Material Handling › Conveying Systems
Inventors
LEE ALEX G
Assignee
EXXONMOBIL TECHNOLOGY & ENGINEERING COMPANY
Original source
US-2026042611-A1, the United States Patent and Trademark Office, 12 February 2026
Document SHA-256
ee8350c3503d6faed5b75b2506e3aa6412a5ba70ea6ad90062f559f3c6263126

Abstract

Hydrogen consuming microorganisms can cause operational challenges for subterranean hydrogen storage. The systems and methods described herein provide sterilization techniques that include acidifying a subterranean reservoir prior to injection of hydrogen. Acidification may be facilitated by, at least partially, saturating a fluid with an acidifying agent such as carbon dioxide. The subterranean reservoir's fluid may be reduced to 3 pH to 4 pH. Hydrogen may then be injected into the subterranean reservoir for storage.

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Citation

OpenTechnical Publication OT-2026-000002943, “Eliminating microbial hydrogen consumption in subsurface hydrogen storage,” published September 15, 2026 at 19:16:17 UTC, https://opentechnical.org/p/OT-2026-000002943.

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