Patent ID: 8770541
Filing Date: 2014-07-08
Classification: E21B,Y10T

Abstract:
1. A sealing apparatus for sealing around an elongate member which passes through a throughbore of a valve device, the apparatus comprising: a first ram assembly housed in a first ram bore and a second ram assembly housed in a second ram bore, each ram assembly having an upper sealing element comprising an upper seal mounted on an upper seal body arranged to support and orientate the upper seal and the lower sealing element comprising a lower seal mounted on a lower seal body arranged to support and orientate the lower seal, each of the upper and lower sealing elements being adapted to change configuration from an open configuration to a sealed configuration within the valve device to seal the throughbore of the valve device around the elongate member, wherein the upper and lower seal bodies in each ram bore are separate and axially moveable within the ram bore independently from one another, and are configured to be actuated between open and sealed configurations by a common actuator.