Invention Grant
- Patent Title: Providing dynamic transient pressure conditions to improve perforation characteristics
- Patent Title (中): 提供动态瞬态压力条件以改善穿孔特性
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Application No.: US11862297Application Date: 2007-09-27
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Publication No.: US07896077B2Publication Date: 2011-03-01
- Inventor: Lawrence A. Behrmann , Brenden M. Grove , Raymond J. Tibbles , Jeremy Harvey
- Applicant: Lawrence A. Behrmann , Brenden M. Grove , Raymond J. Tibbles , Jeremy Harvey
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agency: Trop, Pruner & Hu
- Agent Kevin B. McGoff; Rodney Warfford
- Main IPC: E21B29/02
- IPC: E21B29/02
Abstract:
A transient overbalance condition is created in a wellbore interval such that a pressure of the wellbore interval is greater than a reservoir pressure in surrounding formation. Creating the transient overbalance condition causes a near-wellbore region of the formation to increase in pressure. The pressure in the wellbore interval is reduced at a rate that produces a relative underbalance condition in which the pressure in the wellbore interval is less than the pressure of the near-wellbore region of the formation, but the pressure in the wellbore interval is greater than the reservoir pressure.
Public/Granted literature
- US20090084552A1 PROVIDING DYNAMIC TRANSIENT PRESSURE CONDITIONS TO IMPROVE PERFORATION CHARACTERISTICS Public/Granted day:2009-04-02
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