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 seat 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 the 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 |
US5990051(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19980055549 |
申请日期 |
1998.04.06 |
申请人 |
FAIRMOUNT MINERALS, INC. |
发明人 |
ISCHY, NOEL DAVID;FOX, CRAIG STEVEN |
分类号 |
E21B33/138;E21B43/26;(IPC1-7):C09K3/00;E21B33/13;C09K31/02 |
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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