Equinor Energy as

Statoil Petroleum as

Tore Geir Wernø

Lorents Reinås

Harald Sigurd Nesse

Morten Sæther

Alastair Buchanan

A well insert for insertion into a foundation of a well is provided. The insert comprises a channel therethrough for the well; and the well insert is arranged so that when the well insert is inserted into the foundation of the well, the channel of the insert can be adjusted relative to vertical. A well assembly comprising the well insert and a well foundation is also provided as is a method of inserting a well insert and a method of controlling the orientation of a well using a well insert.

Well insert

A wellhead is provided. The wellhead comprises a high pressure wellhead housing; a casing hanger assembly located within the high pressure wellhead housing; and a casing supported on the casing hanger assembly. The casing hanger assembly is arranged so that the casing is able to move relative to the high pressure wellhead housing. This may be to accommodate well growth experienced by the wellhead during use.

Wellhead assembly

A method of installing or removing a subsea wellhead assembly is provided. The method comprising providing a suction anchor that in use acts as a subsea well foundation, wherein the suction anchor comprises an outer suction skirt; and an inner member, wherein the inner member comprises a high pressure wellhead housing; and installing or removing the suction anchor together with the high pressure wellhead housing on or from a seabed.

Subsea wellhead assembly

A subsea well assembly includes a high pressure wellhead housing; and a port for monitoring and/or controlling fluid within an annulus within the high pressure wellhead housing. The port extends through the high pressure wellhead housing. The subsea well assembly further includes a wellhead support for laterally supporting the high pressure wellhead housing, wherein, at an axial height of the port, the wellhead support surrounds the high pressure wellhead housing at circumferentially discrete locations and the port is located at a circumferential location where the high pressure wellhead housing is not covered by the wellhead support. A method of monitoring and/or controlling fluid within the annulus within the subsea well assembly is also provided.

Subsea wellhead monitoring and controlling

A pressure joint is provided for use with a floating installation () that is connected to a stiff riser (). A low pressure slip joint () connects the installation () to the stiff riser (). A telescopic assembly () fitted with a high pressure seal () is arranged to be fitted within the low pressure slip joint () when in a non-extended configuration, such that normal operation of the low pressure slip joint () is not impeded.

Pressure joint

An apparatus for use with a subsea well includes an upper riser part, a lower riser part, and a weak link coupling the upper and lower riser parts together; and a mechanism coupled between the upper and lower riser parts for damping recoil of the upper riser part following a breaking of the weak link, damping resulting from a plastic deformation of a component or components of the mechanism occurring as the upper and lower riser parts separate.

Growing community of inventors

Sandnes, Norway

Tore Geir Wernø