发明申请
- 专利标题: Method Of Fracturing Multiple Zones Within A Well Using Propellant Pre-Fracturing
- 专利标题(中): 使用推进剂预压裂破裂井内多个区域的方法
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申请号: US13198962申请日: 2011-08-05
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公开(公告)号: US20130032349A1公开(公告)日: 2013-02-07
- 发明人: Olga Petrovna Alekseenko , Alexander F. Zazovsky , Dmitry Ivanovich Potapenko , Christopher N. Fredd
- 申请人: Olga Petrovna Alekseenko , Alexander F. Zazovsky , Dmitry Ivanovich Potapenko , Christopher N. Fredd
- 申请人地址: US TX Sugar Land
- 专利权人: SCHLUMBERGER TECHNOLOGY CORPORATION
- 当前专利权人: SCHLUMBERGER TECHNOLOGY CORPORATION
- 当前专利权人地址: US TX Sugar Land
- 主分类号: E21B43/26
- IPC分类号: E21B43/26
摘要:
A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the pre-fracture propagation pressure of one of the two or more zones to facilitate fracturing of said one of the two or more zones. The pressure of the fracturing fluid is below the pre-fracture propagation pressure of any other non-treated zones of the two or more zones. The isolating of the treated zone is then performed. The fracturing process is then repeated for at least one or more non-treated zones of the two or more zones.
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