公开(公告)号：US20090032301A1

公开(公告)日：2009-02-05

申请号：US11833010

申请日：2007-08-02

申请人： David E. Smith ,  Nils Lennart Rolland ,  Harald Hufthammer ,  Roger Stave

发明人： David E. Smith ,  Nils Lennart Rolland ,  Harald Hufthammer ,  Roger Stave

IPC分类号： E21B7/12 ,  E21B15/02

CPC分类号： E21B21/001 ,  E21B21/08 ,  E21B21/10

摘要： Systems and methods for drilling a well bore in a subsea formation from an offshore structure positioned on a water surface with a drill string that is suspended from the structure and includes a bottom hole assembly adapted to form a top hole portion of the well bore. A drilling fluid source on the offshore structure supplies drilling fluid through the drill string to the bottom hole assembly where the drilling fluid exits from the bottom hole assembly during drilling and returns up the well bore. A suction module is disposed at the sea floor and collects the drilling fluid emerging from the well bore. A pump module is disposed on a return line, which is in fluid communication with the suction module, at a position below the water surface and above the sea floor. The pump module is operable to receive drilling fluid from the suction module and pump the drilling fluid through the return pipe to the same offshore structure or a different offshore structure

摘要翻译： 用于从位于水面上的海上结构的海底结构钻井井的系统和方法，所述钻井钻柱从所述结构悬挂并且包括适于形成所述井孔的顶孔部分的底孔组件。 海上结构上的钻井液源将钻井液通过钻柱提供给井底组件，在钻井过程中钻井液在钻井期间从井底组件中排出并返回井眼。 抽吸模块设置在海底，并收集从井筒出来的钻井液。 泵模块设置在与吸水模块流体连通的返回管线上，位于水面下方和海底上方。 泵模块可操作以从抽吸模块接收钻井流体，并将钻井液体通过返回管泵送到相同的海上结构或不同的海上结构

公开(公告)号：US07913764B2

公开(公告)日：2011-03-29

申请号：US11833010

申请日：2007-08-02

申请人： David E. Smith ,  Nils Lennart Rolland ,  Harald Hufthammer ,  Roger Stave

发明人： David E. Smith ,  Nils Lennart Rolland ,  Harald Hufthammer ,  Roger Stave

IPC分类号： E21B7/12

CPC分类号： E21B21/001 ,  E21B21/08 ,  E21B21/10

摘要： Systems and methods for drilling a well bore in a subsea formation from an offshore structure positioned on a water surface with a drill string that is suspended from the structure and includes a bottom hole assembly adapted to form a top hole portion of the well bore. A drilling fluid source on the offshore structure supplies drilling fluid through the drill string to the bottom hole assembly where the drilling fluid exits from the bottom hole assembly during drilling and returns up the well bore. A suction module is disposed at the sea floor and collects the drilling fluid emerging from the well bore. A pump module is disposed on a return line, which is in fluid communication with the suction module, at a position below the water surface and above the sea floor. The pump module is operable to receive drilling fluid from the suction module and pump the drilling fluid through the return pipe to the same offshore structure or a different offshore structure.

摘要翻译： 用于从位于水面上的海上结构的海底结构钻井井的系统和方法，所述钻井钻柱从所述结构悬挂并且包括适于形成所述井孔的顶孔部分的底孔组件。 海上结构上的钻井液源将钻井液通过钻柱提供给井底组件，在钻井过程中钻井液在钻井期间从井底组件中排出并返回井眼。 抽吸模块设置在海底，并收集从井筒出来的钻井液。 泵模块设置在与吸水模块流体连通的返回管线上，位于水面下方和海底上方。 泵模块可操作以从抽吸模块接收钻井液，并将钻井液通过返回管泵送到相同的海上结构或不同的海上结构。