发明名称 |
METHODS FOR TREATING A WELLBORE |
摘要 |
A method of converting a completed well into a dual completed well that includes selectively pumping a water-based fluid into a first production zone of the completed well, wherein the water-based fluid has a pH of greater than about 5; allowing the water-based fluid to form a continuous, non-flowing water-based gel in the first production zone of the completed well, wherein the water-based gel has a pH of greater than about 5; disposing a layer of cement into the completed well above the water-based gel; perforating a second production zone of the completed well in a location above the layer of cement; drilling through the layer of cement; and breaking the water-based gel located in the first production zone of the completed well, wherein the breaking comprises: exposing the water-based gel to a breaker fluid, wherein the breaker fluid has a pH of greater than about 5 is disclosed. |
申请公布号 |
WO2011005836(A3) |
申请公布日期 |
2011.04.21 |
申请号 |
WO2010US41176 |
申请日期 |
2010.07.07 |
申请人 |
M-I L.L.C.;DAKIN, EUGENE;FERNANDEZ, JORGE;BELL, REGINALD, J. |
发明人 |
DAKIN, EUGENE;FERNANDEZ, JORGE;BELL, REGINALD, J. |
分类号 |
E21B33/13;E21B33/138;E21B43/26 |
主分类号 |
E21B33/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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