A downhole barrier system comprising: a wellbore; an upper packer; upper barrier valve; a pressure sensor; a ported sub; a lower packer; a lower pack flow port sliding sleeve; and a lower barrier valve.
申请公布号
EP3055489(A1)
申请公布日期
2016.08.17
申请号
EP20140852031
申请日期
2014.10.02
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
BUCHAN, COLIN STUART;CANNON, GEOFFREY DAVID;STEWART, DAVID WILLIAM
