Patent · US Active

Composition and method for water and gas shut-off in subterranean formations

US11104838B2 · kind B2 · utility

3Cited by

14References

43Claims

0Family size

Assignees

SAUDI ARABIAN OIL COMPANY · SA
Akzo Nobel Chemicals International B.V · NL

Inventors

Mohammed Abudullah Bataweel · Dhahran, SA
Jin Huang · Baoshan, TW
Ayman Mohammed Almohsin · Dhahran, SA
Prasad Baburao Karadkar · Al Khobar, SA
Hans Lagnemo · Göteborg, SE
Andreas Ake Sundblom · Alingsås, SE
Per Anders Restorp · Skara, SE

Key dates

Filing date	May 14, 2018
Grant date	Aug 31, 2021
Priority date	—
Expiry date	Apr 11, 2039

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/138
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A composition useful for subterranean water or gas shut off applications includes organosilane-modified colloidal silica and an accelerator. The accelerator includes one or more organic or inorganic salts. A method of using a composition, including an organosilane-modified colloidal silica and an accelerator, includes forming a fluid system that is flowed to a formation in a subterranean zone, such as through a wellbore, where the composition forms a gel to plug the formation and shut off water flow into the wellbore.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.