公开(公告)号：US06257339B1

公开(公告)日：2001-07-10

申请号：US09411718

申请日：1999-10-02

申请人： David Michael Haugen ,  Gary Duron Ingram ,  Corey Eugene Hoffman ,  Robert Stephen Beeman

发明人： David Michael Haugen ,  Gary Duron Ingram ,  Corey Eugene Hoffman ,  Robert Stephen Beeman

IPC分类号： E21B33128

CPC分类号： E21B23/006 ,  E21B17/06 ,  E21B17/1014 ,  E21B23/06

摘要： A wellbore system with a tubular string extending from an earth surface down into a wellbore in the earth, a packer system with a selectively settable packer element, and a disconnect located between an end of the tubular string and the packer system, the disconnect operable from the surface by imposing a downward force on the tubular string. In one aspect the packer system's packer element is a tension-set packer element. A wellbore disconnect with a top sub, a piston having an upper end secured to the top sub and a portion below the upper end releasably secured with at least one releasable member to a carrier member, the carrier member having apparatus for selectively gripping the piston, the apparatus for selectively gripping the piston also selectively gripping a bottom sub within which the piston is movable, the at least one releasable member releasable in response to a downward force on the disconnect.

摘要翻译： 一种井筒系统，其具有从地球表面向下延伸到地球中的井眼的管状柱体，具有可选择性地固定的封隔器元件的封隔器系统以及位于管状管柱和封隔器系统的端部之间的断路器， 该表面通过在管状柱上施加向下的力。 在一个方面，封隔器系统的封隔器元件是张力定位封隔器元件。 与顶部子孔的井眼断开，活塞具有固定到顶部辅助部分的上端部和下端部分下方的部分，其可释放地固定有至少一个可释放构件到承载构件，载体构件具有用于选择性地夹紧活塞的装置， 用于选择性地夹紧活塞的装置还选择性地夹持活塞可移动的底部副，所述至少一个可释放构件可响应于断开件上的向下的力而释放。