A tubular has a retracted configuration and an extended configuration. The tubular is initially in the retracted configuration and run into a bore at least partially lined with filter cake. The tubular is extended such that a filter cake-disrupting member mounted on the tubular defines high points or otherwise has an outer surface of varying radial extent for disrupting or disturbing the filter cake.
申请公布号
EP3090122(A2)
申请公布日期
2016.11.09
申请号
EP20140802105
申请日期
2014.11.05
申请人
DARCY TECHNOLOGIES LIMITED
发明人
BRUCE, STEPHEN EDMUND;GRANT, DAVID;SMITH, EWAN COLIN;CAMERON, ANDREW DAVID JAMES