公开(公告)号：US20130284449A1

公开(公告)日：2013-10-31

申请号：US13877878

申请日：2011-10-05

申请人： Craig Francis Bryce Hendrie ,  Herman Bernard Van Bilderbeek ,  Michael Robertson

发明人： Craig Francis Bryce Hendrie ,  Herman Bernard Van Bilderbeek ,  Michael Robertson

IPC分类号： E21B33/043

CPC分类号： E21B33/043

摘要： The present invention provides monitoring means for monitoring the space and volume within a lower annulus. In particular, the monitoring means monitors the space and volume within the lower annulus 52 located between the inner surface of the 22 intermediate casing string 22 and the outer surface of the inner casing string 32. Furthermore, the monitoring means provides the capability to retrieve and/or introduce fluid(s) into the annular space 52. The monitoring means provides a port, specifically a passageway 100, which extends upwardly from the annular space 52 to an outlet located above the hanger 36 for the intermediate casing string 22. The passageway 100 is provided in a sleeve 102. The monitoring means includes a sensor located above the hanger 36 which means that the fluid in the annular space 52 can be monitored without the need for penetrating a casing in the wellhead.

摘要翻译： 本发明提供了用于监测下环形空间内的空间和体积的监视装置。 特别地，监视装置监视位于22中间套管串22的内表面和内套管串32的外表面之间的下环形空间52内的空间和体积。此外，监控装置提供检索和 /或将流体引入环形空间52.监测装置提供一个端口，特别是从环形空间52向上延伸到位于中间套管柱22的悬挂器36上方的出口的通道100.通道 100设置在套筒102中。监视装置包括位于衣架36上方的传感器，其意味着可以监视环形空间52中的流体，而不需要穿透井口中的壳体。