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.

Date of Patent:
Mar. 31, 2026

Filed:

May. 09, 2025
Applicant:

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

Inventors:

Muhammad Israr, Dhahran, SA;

Mobeen Murtaza, Khobar, SA;

Muhammad Shahzad Kamal, Dhahran, SA;

Syed Muhammad Shakil Hussain, Dhahran, SA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/24 (2006.01); C09K 8/528 (2006.01); E21B 37/06 (2006.01);
U.S. Cl.
CPC ...
C09K 8/24 (2013.01); C09K 8/528 (2013.01); E21B 37/06 (2013.01); C09K 2208/12 (2013.01);
Abstract

A shale swelling inhibiting composition includes a water-based drilling mud and an amphiphilic polymer selected from the group including S1, S2, and combinations thereof. The structure of S1 is The shale swelling inhibiting composition includes from 0.01 weight percent (wt. %) to 20 wt % of the amphiphilic polymer based on the total weight of the shale swelling inhibiting composition, and x is in a range from 6 to 20 and n is in a range from 4 to 20.


Find Patent Forward Citations

Israr, Muhammad. (2026). Amphoteric amphiphiles for shale swelling inhibition in oil and gas reservoirs (U.S. Patent No. 12590238). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12590238

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

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