公开(公告)号：US20170260074A1

公开(公告)日：2017-09-14

申请号：US15467687

申请日：2017-03-23

Applicant: BAKER HUGHES INCORPORATED

Inventor： Prasad Dhulipala ,  Jerry Weers ,  Soma Chakraborty ,  Marilyn Blaschke

IPC: C02F3/34 ,  B01D53/48 ,  B01D53/52 ,  B01D53/84 ,  C12N9/02 ,  C02F101/10 ,  C02F103/06 ,  C02F103/08 ,  C02F103/36

CPC classification number: C02F3/342 ,  B01D53/48 ,  B01D53/52 ,  B01D53/84 ,  B01D2255/804 ,  B01D2257/306 ,  C02F2101/101 ,  C02F2101/40 ,  C02F2103/06 ,  C02F2103/08 ,  C02F2103/365 ,  C02F2303/02 ,  C02F2303/08 ,  C09K8/035 ,  C09K8/52 ,  C09K2208/20 ,  C12N9/0051 ,  C12N9/1085 ,  C12N9/88 ,  C12Y108/05004 ,  C12Y205/01047 ,  C12Y404/01009

Abstract: Cysteine synthase enzymes (e.g. O-Acetyl-L-Serine Sulfhydrylase enzymes) may be used in combination with sulfide quinone reductase enzymes 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 with at least one sulfide quinone reductase, and a base fluid, such as a water-based fluid, an organic-based fluid, and combinations thereof.