发明名称 |
METHOD FOR TREATING A SUBTERRANEAN FORMATION |
摘要 |
Disclosed are acid fracturing methods for subterranean siliceous formations employing a viscous dissolving fluid to create a permeable conduit that bypasses the near wellbore damage. The viscous dissolving fluids used according to the invention are acid-fracturing treatment fluids containing a dissolving agent viscosified with a material such as a viscoelastic surfactant, and the fluid is injected into a sandstone formation at a pressure sufficient to create a hydraulic fracture. Also, the viscous dissolving fluid leaks off into the faces of the fracture thus "stimulating" the formation. Hence when the hydraulic fracture has closed there is a part of the formation that has been effectively stimulated, creating a pathway for fluids to preferentially flow to the wellbore. The formation may then be flowed back to produce a substantial volume of the treatment fluid.
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申请公布号 |
CA2547185(C) |
申请公布日期 |
2011.07.12 |
申请号 |
CA20062547185 |
申请日期 |
2006.05.17 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
MILNE, ARTHUR;SOLER, DIEGO |
分类号 |
C09K8/72;E21B43/267;E21B43/27 |
主分类号 |
C09K8/72 |
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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