公开(公告)号：US10260288B2

公开(公告)日：2019-04-16

申请号：US14325589

申请日：2014-07-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Randall S. Shafer ,  Gordon T. Poss

IPC: E21B33/064 ,  E21B33/076 ,  E21B34/04 ,  E21B33/038 ,  E21B33/06 ,  E21B7/12 ,  E21B43/01

Abstract: Systems and methods contain fluids discharged from a subsea well or at the surface by capping the well blowout with a pre-positioned capping device. The capping device includes at least one blind shear ram and is separate from a blowout preventer. The blowout preventer may operate to control well events up to a certain pressure, above which the capping device is employed since the capping device has a higher pressure rating than the blowout preventer.