发明名称 |
HIGH PRESSURE ADAPTER FOR WELLHEADS |
摘要 |
A novel adapter and pin assembly allows the close attachment of a high pressure pumping array of valves to the low pressure tubing or casing head on the well. This allows high pressure fluids or gases to be pumped through the low pressure tubing or casing head, into the tubing and down the well while isolating the low pressure tubing or casing head from these fluids or gases. The high pressure seals are tested prior to the start of the high pressure pumping, and the low pressure fittings are protected and monitored by suitable relief and venting means.
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申请公布号 |
CA1284102(C) |
申请公布日期 |
1991.05.14 |
申请号 |
CA19890614243 |
申请日期 |
1989.09.28 |
申请人 |
ROESCH, ALBERT;MCLEOD, ROD;ROESCH, ALBERT;ROESCH, ALBERT |
发明人 |
MCLEOD, ROD;ROESCH, ALBERT |
分类号 |
E21B17/10;E21B33/04;E21B33/068;(IPC1-7):E21B33/03 |
主分类号 |
E21B17/10 |
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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