APPARATUS AND METHOD FOR SETTING A CEMENTITIOUS MATERIAL PLUG

摘要

During the process of drilling for hydrocarbons, there is often the need to set a cementitious material plug in an open hole to allow the process of sidetracking and drilling of a new well bore. The present invention provides an apparatus and method for setting a cementitious material plug in an irregularly shaped and/or over gauge well bore without contamination of the cementitious material by extruding a membrane filled with cementitious material from a membrane delivery device.

主权项

1. Apparatus for setting a cementitious material plug in a wellbore, having a down hole assembly comprising:
a membrane for containing cementitious material within a volume substantially bounded by the membrane; and a membrane delivery device for housing the membrane therein in its undelivered state, the membrane delivery device configured to extrude the membrane from a down hole end of the membrane delivery device in response to receiving a cementitious material slurry, such that the membrane receives said cementitious material slurry therein.