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:
Nov. 05, 2024

Filed:

Apr. 08, 2022
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Vikrant Wagle, Dhahran, SA;

Abdullah Al-Yami, Dhahran, SA;

Omprakash Pal, Dhahran, SA;

Ali Al-Safran, Dhahran, SA;

Mohammad Alharthi, Dammam, SA;

Sara Alkhalaf, Alkhobar, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/04 (2006.01); C09K 8/035 (2006.01); C09K 8/528 (2006.01);
U.S. Cl.
CPC ...
C09K 8/04 (2013.01); C09K 8/035 (2013.01); C09K 8/528 (2013.01); C09K 2208/12 (2013.01);
Abstract

A wellbore fluid composition is provided that includes an aqueous base fluid and at least one ethylene ammonium salt having a number average molecular weight in a range of 250 to 500 grams per mole. A method of drilling a wellbore is also provided. the method includes circulating an aqueous drilling fluid into the wellbore while drilling, wherein the aqueous drilling fluid includes at least one ethylene ammonium salt. The aqueous drilling fluid further includes a pH value from 6.5 to 7.5. The method of drilling a wellbore further includes recovering shale cuttings while maintaining wellbore stability.


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