发明名称 |
DRILLING RISER ASSEMBLIES |
摘要 |
A riser assembly is disclosed comprising: a main tube; two flanges coupled to the main tube, each flange comprising: central lumen configured to be in fluid communication with the main tube; at least one choke/kill hole configured to receive a choke/kill line; at least one booster hole configured to receive a booster line; and a plurality of bolt holes, each bolt hole comprising a tapered portion and a dowel slot, where each bolt hole is configured to receive a nut, a bolt, and a dowel. In certain embodiments, riser strings comprising at least two riser assemblies coupled to each other are disclosed. |
申请公布号 |
EP2971442(A4) |
申请公布日期 |
2016.10.26 |
申请号 |
EP20140769570 |
申请日期 |
2014.03.12 |
申请人 |
AMERIFORGE GROUP INC.;WALKER, STEPHEN J.;NANCE, GILBERT;ARTHION, RANDY |
发明人 |
WALKER, STEPHEN, J.;NANCE, GILBERT;ARTHION, RANDY |
分类号 |
E21B17/01;E21B17/08 |
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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