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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 10479919 B1

PDFFull Text
Expired
Date of Patent:
Nov. 19, 2019

Filed:

Mar. 20, 2019

Method for drilling a hydrogen sulfide-containing formation

Applicant:

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

Inventors:

Salah El-Din Elkatatny, Dhahran, SA;

Reyad Awwad Shawabkeh, Dhahran, SA;

Mohamed Ahmed Nasr El-Din Mahmoud, Dhahran, SA;

Assignee:

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

Attorney:

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

Primary Examiner:

Andrew Sue-Ako

Int. Cl.
CPC ...
E21B 41/02 (2006.01); C09K 8/08 (2006.01); E21B 21/00 (2006.01); C09K 8/03 (2006.01); C09K 8/532 (2006.01); C09K 8/16 (2006.01); E21B 21/06 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
C09K 8/08 (2013.01); C09K 8/032 (2013.01); C09K 8/16 (2013.01); C09K 8/532 (2013.01); E21B 21/003 (2013.01); E21B 41/02 (2013.01); C09K 2208/20 (2013.01); E21B 21/062 (2013.01); E21B 43/26 (2013.01);
Abstract

A drilling fluid composition comprising an aqueous base fluid, a viscosifier, and a HS scavenger comprising copper nitrate, wherein the drilling fluid composition has a HS sorption capacity from about 4.0 to about 6.0 gram per one milliliter of the drilling fluid composition; and a method of drilling a subterranean geological formation using thereof are provided. Various embodiments of the drilling fluid composition and the method are also provided.

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Elkatatny, Salah El-Din. (2019). Method for drilling a hydrogen sulfide-containing formation (U.S. Patent No. 10479919). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10479919

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