logo

For the Inventor, By the Inventor

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 12612543 B1

PDFFull Text
Date of Patent:
Apr. 28, 2026

Filed:

Nov. 22, 2024

Gemini surfactant as foaming agent for foam drilling

Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Ahmed Hamdy Gowida, Dhahran, SA;

Salaheldin Mahmoud Ahmed Elkatatny, Dhahran, SA;

Muhammad Shahzad Kamal, Dhahran, SA;

Sayed Muhammad Shakil Hussain, Dhahran, SA;

Assignee:

KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Silvana C Runyan

Int. Cl.
CPC ...
E21B 43/27 (2006.01); C09K 8/24 (2006.01); C09K 8/38 (2006.01);
U.S. Cl.
CPC ...
C09K 8/38 (2013.01); C09K 8/24 (2013.01); E21B 43/27 (2020.05);
Abstract

A method of underbalanced drilling includes drilling into a subterranean geological formation to form a wellbore and injecting a foaming agent into the wellbore during drilling at a wellbore pressure that is below a pore pressure of the subterranean geological formation. The foaming agent forms a foam in the wellbore at a drilling surface at a bottom of the wellbore and transports drill cuttings formed by the drilling away from the drilling surface in the foam. The foaming agent is an aqueous solution including a gemini amphiphile dicationic surfactant having a linker and a lipophilic tail.

Find Patent Forward Citations

Gowida, Ahmed. (2026). Gemini surfactant as foaming agent for foam drilling (U.S. Patent No. 12612543). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12612543

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

Loading…