发明名称 |
SUBSEA WELLBORE CONSTRUCTION METHOD AND APPARATUS |
摘要 |
A method and system for constructing a subsea well in a subterranean formation is described. A tubular in a subsea well defines a main wellbore, and a fluid circulation path from the main wellbore to an outlet is formed via the wellbore annulus between the tubular and the subterranean formation. A cement slurry flows from the main wellbore along the wellbore annulus towards the outlet, causing fluid to be displaced from the annulus through the outlet. A controllable subsea choke in fluid communication with the fluid circulation path generates a backpressure in the fluid circulation path using the controllable subsea choke. In a preferred embodiment, the controllable subsea choke is part of a subsea pressure regulation system which also comprises a subsea pump. |
申请公布号 |
WO2012140445(A3) |
申请公布日期 |
2014.01.09 |
申请号 |
WO2012GB50828 |
申请日期 |
2012.04.13 |
申请人 |
IKM CLEANDRILL AS;HASLER, THOMAS;HUFTHAMMER, HARALD |
发明人 |
HASLER, THOMAS;HUFTHAMMER, HARALD |
分类号 |
E21B33/14;E21B21/08;E21B43/10 |
主分类号 |
E21B33/14 |
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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