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:
Apr. 20, 2021

Filed:

Nov. 06, 2017
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/12 (2006.01); C09K 8/575 (2006.01); C09K 8/57 (2006.01); C09K 8/506 (2006.01); C09K 8/504 (2006.01); C09K 8/04 (2006.01); C09K 8/08 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/12 (2013.01); C09K 8/04 (2013.01); C09K 8/08 (2013.01); C09K 8/506 (2013.01); C09K 8/5045 (2013.01); C09K 8/572 (2013.01); C09K 8/575 (2013.01); E21B 21/00 (2013.01); C09K 2208/12 (2013.01); C09K 2208/18 (2013.01);
Abstract

The present application provides a drill-in slurry containing an aqueous base fluid; a solid particulate material; a hygroscopic chelating agent; optionally an alkali formate; and optionally an additional ingredient such as a defoamer, a viscosity modifier, a stabilizer, soda ash or sodium bicarbonate. Methods for making the drill-in slurry and methods of using the drill-in slurry for drilling into a reservoir section or a producing section of a subterranean formation are also provided.


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