发明名称 Chemical diversion technique
摘要 A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. An activator is then delivered to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process.
申请公布号 US8646530(B2) 申请公布日期 2014.02.11
申请号 US20090643219 申请日期 2009.12.21
申请人 WILLIAMSON DON;SCHLUMBERGER TECHNOLOGY CORPORATION 发明人 WILLIAMSON DON
分类号 E21B33/13;E21B43/22 主分类号 E21B33/13
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