Invention Grant
- Patent Title: Cystine proteases for bacterial control
- Patent Title (中): 胱氨酸蛋白酶用于细菌控制
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Application No.: US13718877Application Date: 2012-12-18
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Publication No.: US09458374B2Publication Date: 2016-10-04
- Inventor: Daniel Denton Sorrells
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- Agent Jeffrey R. Anderson; Mike Flynn; Tim Curington
- Main IPC: E21B43/12
- IPC: E21B43/12 ; C09K8/66 ; E21B43/267 ; C09K8/04 ; C09K8/84 ; C02F1/50
Abstract:
A produced water bacterial pretreatment method which includes a) optionally adjusting a pH and a temperature of a produced water containing bacteria; b) adding a cysteine protease to said produced water; c) allowing said cysteine protease to inactivate said bacteria, thus producing pretreated produced water; and d) introducing said pretreated produced water into a wellbore penetrating a subterranean formation is provided.
Public/Granted literature
- US20140166294A1 CYSTINE PROTEASES FOR BACTERIAL CONTROL Public/Granted day:2014-06-19
Information query
