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.:
Date of Patent:
Mar. 07, 2017
Filed:
Dec. 04, 2014
Applicant:
Baker Hughes Incorporated, Houston, TX (US);
Inventors:
Prasad D. Dhulipala, Austin, TX (US);
Charles D. Armstrong, Tomball, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); C09K 8/035 (2006.01); C09K 8/532 (2006.01);
U.S. Cl.
CPC ...
C09K 8/035 (2013.01); C09K 8/532 (2013.01); E21B 43/16 (2013.01); C09K 2208/20 (2013.01);
Abstract
Cysteine synthase or O-Acetyl-L-Serine Sulfhydrylase enzymes, such as those derived from thebacterium, may be used in additive compositions, fluid compositions, and methods for decreasing or removing hydrogen sulfide from recovered downhole fluids and/or the subterranean reservoir wellbore from which the downhole fluid was recovered. The fluid composition may include at least one cysteine synthase enzyme and a base fluid, such as a drilling fluid, a servicing fluid, a production fluid, a completion fluid, an injection fluid, a refinery fluids, and combinations thereof.