Aquaterra Energy wins contract for BP's Caspian Sea project


UK-based Aquaterra Energy, a supplier of offshore engineering services and centraliser products, has received a contract to design and install 260 centralisers for BP Azerbaijan.

"During the pre-drilling programme a maximum of 17 wells will be tied back to the platform, which requires centralisation."

The installation work will take place at BP Azerbaijan's latest development on the West Chirag Platform in the Azeri-Chirag-Guneshli (ACG) oil fields in the Caspian Sea.

The platform has 48 drilling slots, of which 20 are 'tieback slots', and the contract includes pre-engineering for the casing requirements and devising a centraliser package for the tieback operations.

During the pre-drilling programme a maximum of 17 wells will be tied back to the platform, which requires centralisation.

Aquaterra Energy senior project engineer, Larry Colby, said the contract builds on successful previous work by the company for BP in the Shah Deniz field.

"Our experienced engineers and offshore technicians have provided excellent equipment, service and support," Colby added.

The centralisers will be designed to withstand the maximum lateral and axial loads that can be experienced during pipe running, installation and operation of the wells.

They will also provide a critical interface between the jacket structure of the platform and the well system, and will ensure concentricity between inner casing strings and outer conductor strings.

The centralisers will utilise a thermally sprayed aluminium (TSA) coating system together with sacrificial anodes for the Conductor Guide Eccentric Centralisers, to meet the platform's design life of 25 years, the company said.

Aquaterra Energy has provided products, services and expertise to BP Azerbaijan for many years, including tieback engineering services on BP's Shah Deniz gas wells.