Chrysaor submits decommissioning plan for Caister offshore platform

North Sea oil and gas operator Chrysaor has submitted a plan for decommissioning of the Caister CM offshore platform in the UK North Sea to the UK authorities.

The Caister Bunter Field and Caister Carboniferous Field are in the UK Southern North Sea in block 44/23a, license P452.

The Caister CM platform and associated sections of pipeline risers attached to the installation will be removed to shore for re-use or recycling.

The 44/23-1 discovery well was drilled in 1967 and the Caister CM platform was installed in 1993. The platform is a small installation with total combined topsides and jacket weights of 2,696 tonnes in 41 meters of water.

The installation is tied back to the Murdoch Complex via a 16″diameter gas pipeline and a 3.5″ diameter methanol pipeline were laid to the Murdoch complex.

The decommissioning program will include the removal of the platform and truncated riser sections attached to the Caister platform.

The remaining pipeline lengths spanning from the base of the Caister CM jacket to Murdoch MD will be included in a subsequent decommissioning program. The field covered by these decommissioning programs produced 296 bcf.

It is worth stating that Chrysaor took over operatorship of the Caister field in 2000 during which time the platform ceased production, the wells were plugged and abandoned and the platform was put into cold suspension.

In 2019, the operatorship and associated remaining decommissioning operations were taken over by Chrysaor.

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