发明名称 |
RISER WITH RETRIEVABLE INTERNAL SERVICES |
摘要 |
Systems are described for raising production fluid from a source (1) on the seabed comprising a riser (4) having a first, lower, end for connection or connected to the source; a top end support for supporting the riser at or in the vicinity of the sea surface; and an operating device (11) mounted inside the riser (4) for displacement within the riser so that the pump is accessib le to an operator for replacement or repair. The operating device (11) may be displaced on a pipe (12) which extends within the riser (4) and to a lower e nd of which the device (11) is attached. The device (11) may be inter alia an electric pump, a hydraulic pump, a gas injector, a heater or a cleaning devi ce.
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申请公布号 |
CA2404881(A1) |
申请公布日期 |
2001.10.04 |
申请号 |
CA20012404881 |
申请日期 |
2001.03.26 |
申请人 |
ROCKWATER LIMITED |
发明人 |
ABRAHAM, WILLIAM ERIC;HERD, BRENDAN PAUL;SEYMOUR, BEN |
分类号 |
E21B17/01;E21B43/01;E21B43/12;(IPC1-7):E21B43/01;E21B36/00;E21B37/00;E21B23/08;E21B19/22;E21B43/25;E21B43/36 |
主分类号 |
E21B17/01 |
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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