The invention relates to a subsea wellhead support system (1) comprising: —a foundation assembly (2); —a conductor housing (31) for supporting a wellhead (4); —a connection arrangement (5) between the foundation assembly (2) and the conductor housing (3′); wherein the connection arrangement (5) is configured to releasably connect the conductor housing (3′) to the foundation assembly (2), such that: —during installation of the subsea wellhead support system (1), the conductor housing (1) can be fixed relative the foundation assembly (2), and—after installation of the subsea wellhead support system (1), the connection arrangement (5) can be released from the foundation assembly (2) allowing the conductor housing (3′) to move parallel along a longitudinal direction of a throughgoing opening of the conductor housing (31).

A subsea skid (100) includes a plurality of skid tubes (101-112), and a plurality of skid joints (130-135) coupled between the plurality of skid tubes (101-112). The plurality of skid tubes (101-112) and the plurality of skid joints (130-135) form a frame. The plurality of skid tubes (101-112) and the plurality of skid joints (130-135) are each formed of a non-metallic material.

A subsea skid (100) includes a plurality of skid tubes (101-112), and a plurality of skid joints (130-135) coupled between the plurality of skid tubes (101-112). The plurality of skid tubes (101-112) and the plurality of skid joints (130-135) form a frame. The plurality of skid tubes (101-112) and the plurality of skid joints (130-135) are each formed of a non-metallic material.

A subsea equipment-protection apparatus including: a cap (1) and a sleeve (2), wherein the cap and the sleeve are configured to be supportable by a foundation (6) of the subsea equipment (16). The cap and the sleeve are arranged such that at least a portion of the cap may enter an opening of the sleeve and be supported by the sleeve; and thereby the cap and sleeve cover and protect the subsea equipment.

A subsea equipment-protection apparatus including: a cap (1) and a sleeve (2), wherein the cap and the sleeve are configured to be supportable by a foundation (6) of the subsea equipment (16). The cap and the sleeve are arranged such that at least a portion of the cap may enter an opening of the sleeve and be supported by the sleeve; and thereby the cap and sleeve cover and protect the subsea equipment.

Subsea system (100) and method of installing the subsea system (100), the method comprising the steps of: —preparing a first foundation (1′) comprising at least a first dedicated position for receiving a first subsea station (3′, 13′), —providing the first foundation (1′) with at least a first guide system (4′), —installing the first foundation (1′) at a subsea location, —preparing at least a first subsea station (3′, 13′) comprising a first flow module (5′) for connection with a pipeline (6), —installing the at least first subsea station (3′, 13′) with the first flow module (5′) in the first dedicated position on the first foundation (1′), —preparing a pipeline (6) and providing the pipeline (6) with at least a first T-connection (7′) at a determined calculated position corresponding to the first dedicated position on the first foundation (1′), —installing the pipeline (6) and allowing the pipeline (6) to rest on the first guide system (4′) on the first foundation (1′) such that the first T-connection (7′) is arranged at or in the proximity of the first dedicated position on the first foundation (1′), —preparing a first piece of pipe (8′) and connecting the first T-connection (7′) of the pipeline (6) with the first flow module (5′) on the first subsea station (3′, 13′) using the first piece of pipe (8′).

A subsea wellhead assembly and a method of installing a subsea well head assembly. The subsea wellhead assembly includes: a conductor; a subsea wellhead; and subsea riser system equipment mounted on the subsea wellhead. The subsea riser system equipment is connected to the conductor such that forces can be transmitted from the subsea riser equipment to the conductor in both tension and compression.

A subsea wellhead assembly and a method of installing a subsea well head assembly. The subsea wellhead assembly includes: a conductor; a subsea wellhead; and subsea riser system equipment mounted on the subsea wellhead. The subsea riser system equipment is connected to the conductor such that forces can be transmitted from the subsea riser equipment to the conductor in both tension and compression.

A wellhead load relief device for reducing riser system induced load effects on a subsea wellhead and a method of installing a subsea wellhead assembly onto a subsea wellhead using the wellhead load relief device. The wellhead load relief device includes: a receptacle for receiving well control equipment, wherein the receptacle has an open top to permit the well control equipment to be received in the receptacle; and an adjustable support mechanism for rigidly supporting well control equipment received in the receptacle. The adjustable support mechanism is located within the receptacle and the adjustable support mechanism has a lateral extent that is adjustable relative to the receptacle. The wellhead load relief device is for providing a load path for forces exerted on the well control equipment to the seabed without going via the subsea wellhead. A subsea wellhead assembly including the wellhead load relief device is also provided.

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.