Patent ID: 9388656
Filing Date: 2016-07-12
CPC Classification: E21B

Claim Text:
1. A securement arrangement for securing a hanger within a subsea wellhead comprising monitoring means for monitoring an annular space located below the hanger, the hanger comprising an inner casing secured at a lower end thereof, the annular space being located between an outer surface of the inner casing and an inner surface of an outer casing, the monitoring means comprising a sleeve securable within the wellhead, wherein the hanger comprises an outer sealing surface which extends around the complete periphery thereof and, in which, the securement arrangement comprises a clamping arrangement which is arranged, in use, to distort the sleeve inwardly to create a seal between the outer sealing surface of the hanger and an inner surface of the sleeve, wherein the sleeve includes a monitoring fluid passageway which fluidly connects the annular space to a monitoring aperture located above the hanger.