Invention Grant
US09260955B2 Method of reducing zone permeability by in-situ formation gel of urotropin and urea in an aqueous solution
有权
在水溶液中通过原位形成凝血素促尿路动蛋白和尿素来减少渗透性的方法
- Patent Title: Method of reducing zone permeability by in-situ formation gel of urotropin and urea in an aqueous solution
- Patent Title (中): 在水溶液中通过原位形成凝血素促尿路动蛋白和尿素来减少渗透性的方法
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Application No.: US13606332Application Date: 2012-09-07
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Publication No.: US09260955B2Publication Date: 2016-02-16
- Inventor: Vladimir Stehle , Konrad Siemer , Liubov Altunina , Vladimir Kuvshinov , Ivan Kuvshinov
- Applicant: Vladimir Stehle , Konrad Siemer , Liubov Altunina , Vladimir Kuvshinov , Ivan Kuvshinov
- Applicant Address: RU Tomsk DE Kassel
- Assignee: Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences,Wintershall Holding GmbH
- Current Assignee: Institute of Petroleum Chemistry of the Siberian Branch of the Russian Academy of Sciences,Wintershall Holding GmbH
- Current Assignee Address: RU Tomsk DE Kassel
- Agency: Drinker Biddle & Reath LLP
- Main IPC: E21B43/22
- IPC: E21B43/22 ; E21B43/20 ; C09K8/58
Abstract:
Mineral oil is produced from underground mineral oil deposits by injecting one or more flooding media into an injection well and withdrawing mineral oil from a production well. Highly permeable zones are blocked in the region between the injection well and the production well by separately injecting, in succession, two different aqueous formulations, one having water and urotropin and the other having water and urea, through the injection well into the deposit. The two different aqueous formulations mix in the formation after injection to form viscous gels. Either or both formulations have at least one further metal or semimetal compound that can form gels when admixed with bases. The injection well temperature is not more than 60° C.
Public/Granted literature
- US20130062078A1 PROCESS FOR PRODUCING MINERAL OIL FROM UNDERGROUND MINERAL OIL DEPOSITS Public/Granted day:2013-03-14
Information query
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