发明授权
- 专利标题: Methods of fracturing subterranean formations
- 专利标题(中): 压裂地下地层的方法
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申请号: US09219948申请日: 1998-12-23
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公开(公告)号: US06412561B1公开(公告)日: 2002-07-02
- 发明人: J. Ernest Brown , Roger J. Card , Erik B. Nelson
- 申请人: J. Ernest Brown , Roger J. Card , Erik B. Nelson
- 主分类号: E21B4317
- IPC分类号: E21B4317
摘要:
The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscoelastic surfactant fluid containing wormlike micelles are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing methods useful for increasing hydrocarbon production, limiting connate water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of micelles of surfactant in aqueous zones of the subterranean formation facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production.
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