发明申请
- 专利标题: Method and Apparatus for Increasing Well Productivity
- 专利标题(中): 提高生产力的方法和装置
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申请号: US13130579申请日: 2009-12-10
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公开(公告)号: US20110247816A1公开(公告)日: 2011-10-13
- 发明人: Ernest E. Carter, JR.
- 申请人: Ernest E. Carter, JR.
- 国际申请: PCT/US2009/067431 WO 20091210
- 主分类号: E21B43/11
- IPC分类号: E21B43/11
摘要:
This patent application discloses method and apparatus to cut an extended slot connecting a well to a substantial cross section of a desired producing formation whereby material can flow freely between the formation and the wellbore and at least partially overcome the flow limitations of low permeability formations without the environmental issues associated with hydraulic fracturing. It is further disclosed that the connection between said slot and the formation may be further enhanced by explosive or combustive processes that rapidly generate gas pressure within the large surface area of the slot, thereby changing its characteristics and forcing open additional fractures into the cross section of formation exposed to the slot. The method may significantly increase the recoverable percentage of natural gas from low permeability deposits such as shale and coal.
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