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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12460120 B1

PDFFull Text
Date of Patent:
Nov. 04, 2025

Filed:

Jul. 24, 2024

Methods for curing lost circulation in subterranean formations

Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Don Lawrence, Houston, TX (US);

Ahmed Al-Dughaither, Dhahran, SA;

Abdullah Abahussain, Dhahran, SA;

Abdulaziz Bahamdan, Dhahran, SA;

Aljazi Al-Ajmi, Dhahran, SA;

Assignee:

SAUDI ARABIAN OIL COMPANY, Dhahran, SA;

Attorney:

Vorys, Sater, Seymour and Pease, LLP

Primary Examiner:

Anuradha Ahuja

Int. Cl.
CPC ...
C09K 8/487 (2006.01); C04B 22/12 (2006.01); C04B 28/26 (2006.01); E21B 33/138 (2006.01); C04B 103/20 (2006.01); C04B 103/50 (2006.01);
U.S. Cl.
CPC ...
C09K 8/487 (2013.01); C04B 22/124 (2013.01); C04B 28/26 (2013.01); E21B 33/138 (2013.01); C04B 2103/20 (2013.01); C04B 2103/50 (2013.01);
Abstract

Methods comprise introducing a first fluid pill and a second fluid pill into a subterranean formation containing at least one lost circulation zone via a wellbore; allowing the first fluid pill to interact with the second fluid pill to form a solid within the at least one lost circulation zone; introducing a first cement into the subterranean formation; allowing at least a portion of the first cement to solidify within the at least one lost circulation zone; consecutively reintroducing the first fluid pill and the second fluid pill into the subterranean formation; introducing a plurality of cements having progressively higher thixotropies; and allowing the plurality of cements to solidify within the at least one lost circulation zone.

Find Patent Forward Citations

Lawrence, Don. (2025). Methods for curing lost circulation in subterranean formations (U.S. Patent No. 12460120). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12460120

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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