发明名称 ALKALINE BETA-MANNANASE CONTAINING COMPOSITIONS USEFUL FOR THE HYDROLYSIS OF GUAR IN HIGH pH ENVIRONMENTS AND METHODS RELATED THERETO
摘要 Methods and compositions of fracturing formations are provided. The fracturing fluid includes an enzyme breaker that decreases the viscosity of the fracturing fluid over time. The enzyme breaker can be used in environments having a pH value ranging from about 7 to about 12.
申请公布号 US2010126726(A1) 申请公布日期 2010.05.27
申请号 US20080275951 申请日期 2008.11.21
申请人 ARMSTRONG CHARLES DAVID 发明人 ARMSTRONG CHARLES DAVID
分类号 E21B43/26;C09K8/60 主分类号 E21B43/26
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