The Leman BH Platform (left in above image) is located 50 km from the Norfolk coastline, in Block 49/26 of the United Kingdom Continental Shelf (UKCS). The Leman BH platform is a living quarters platform, originally designed to accommodate up to 48 personnel working on Leman BT and Leman BK platforms. However, the living quarters became redundant following the decommissioning of the Leman BK platform in the mid-1990s. The remaining bridge-linked Leman BH and BT platforms became Normally Unattended Installations (NUI).
The functions of Leman BH are limited to providing power to the Leman BT platform and providing helicopter access and temporary overnight shelter for personnel visiting the Leman BT platform. The Leman BT platform provides pressure control for the produced gas flowing from the Leman B, C, D and E production platforms before it is transferred to Bacton via Leman A.
Shell has taken the decision to remove the Leman BH platform and transfer all of its functions to Leman BT. This will optimise the offshore maintenance requirements and will not affect Leman field production. The Leman BH platform is planned to be removed using a reverse installation method which will involve the removal of the topsides, bridge, and jacket using a Heavy Lift Vessel (HLV). The approximate weight of the platform is 1605 tonnes.