发明名称 |
Diverless subsea hot tap system with lateral pipe tie-in |
摘要 |
A diverless process of tapping a pressurized subsea pipeline without removing the pipeline from service. The process includes the steps of lowering and landing a measurement tool onto the pipeline in order to check ovality and straightness of the pipeline. Pipe lift frames are lowered and landed onto the pipeline spaced from a chosen location. The pipeline is lifted by hydraulic actuators or mechanical screws on the lift frames. A hot tap machine and accompanying orientation frame are lowered from the surface and landed on the pipeline between the pipe lift frames. A fitting clamp is secured to the pipeline. A hot tap machine is lowered onto the hot tap fitting and orientation frame. The pipeline is then tapped with the hot tap machine. |
申请公布号 |
AU3901000(A) |
申请公布日期 |
2000.10.23 |
申请号 |
AU20000039010 |
申请日期 |
2000.03.20 |
申请人 |
WILLIAMS FIELD SERVICES GULF COAST COMPANY, L.P. |
发明人 |
GERN D. EXLEY;DONALD W. CROSS;ORAN TARLTON;LARRY DECKER;DAVID J. HICKS;RICHARD W. MCCOY |
分类号 |
B08B9/023;B08B9/04;F16L1/00;F16L1/12;F16L1/26;F16L55/18 |
主分类号 |
B08B9/023 |
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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