Invention Grant
- Patent Title: Multistage process for producing mineral oil using microorganisms
- Patent Title (中): 使用微生物生产矿物油的多阶段过程
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Application No.: US13367565Application Date: 2012-02-07
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Publication No.: US08826976B2Publication Date: 2014-09-09
- Inventor: Vladimir Stehle , Rajan Hollmann , Robert Thummer
- Applicant: Vladimir Stehle , Rajan Hollmann , Robert Thummer
- Applicant Address: DE Kassel
- Assignee: Wintershall Holding GmbH
- Current Assignee: Wintershall Holding GmbH
- Current Assignee Address: DE Kassel
- Agency: Drinker Biddle & Reath LLP
- Main IPC: E21B43/22
- IPC: E21B43/22 ; C09K8/582 ; E21B43/16 ; E21B43/20
Abstract:
A process for producing mineral oil from mineral oil deposits by injecting aqueous flooding media into a mineral oil formation through injection boreholes and withdrawing the mineral oil through production boreholes, wherein the process comprises several cycles of process steps in which oil-mobilizing microorganisms and flooding water are injected alternately into the deposit. Processes in which highly permeable regions of the mineral oil formation are additionally blocked.
Public/Granted literature
- US20120199343A1 MULTISTAGE PROCESS FOR PRODUCING MINERAL OIL USING MICROORGANISMS Public/Granted day:2012-08-09
Information query
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