发明名称 |
INJECTION MOLDED DEGRADABLE CASING PERFORATION BALL SEALERS |
摘要 |
A degradable ball sealer for use in the oil and gas industry is disclosed. The ball seal comprises a particular composition of matter and injection molding technique that provides a ball seal which will dissolve in stimulation or wellbore fluids after stimulation operations are complete. In use, the surface of the ball sealer softens slightly assuring a solid seal between the ball and the casing perforation. The composition when dissolved into wellbore fluids does not pose a hazard and disperses well in aqueous based wellbore fluids. The same composition, made into a larger ball, may be used as a tubing sealer for pressure testing.
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申请公布号 |
WO9951704(A8) |
申请公布日期 |
2001.08.02 |
申请号 |
WO1999US07499 |
申请日期 |
1999.04.05 |
申请人 |
ISCHY, NOEL, DAVID;FOX, CRAIG, STEVE |
发明人 |
ISCHY, NOEL, DAVID;FOX, CRAIG, STEVE |
分类号 |
E21B33/138;E21B43/26;(IPC1-7):C09K31/02;C09K3/00 |
主分类号 |
E21B33/138 |
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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