Development

Statfjord Øst is a field in the Tampen area in the North Sea, seven kilometres northeast of the Statfjord field. The water depth is 150-190 metres. Statfjord Øst was discovered in 1976, and the plan for development and operation (PDO) was approved in 1990. The field has been developed with two subsea production templates and one water injection template, tied-back to the Statfjord C platform. In addition, two production wells have been drilled from Statfjord C. Production started in 1994.

Reservoir

Statfjord Øst produces oil from Middle Jurassic sandstone in the Brent Group. The reservoir has good quality and lies at 2,400 metres depth.

Recovery strategy

The field was originally produced with water injection but is now produced by pressure depletion.

Transport

The well stream is transported in two pipelines to the Statfjord C facility for processing, storage and export. Statfjord Øst, Statfjord Nord and Sygna have a shared process module on Statfjord C. Oil is loaded onto tankers and gas is exported through Tampen Link and the Far North Liquids and Gas System (FLAGS) pipeline to the UK.

Status

The field is affected by pressure depletion due to depressurisation of the Statfjord field. The lifetime extension of the Statfjord C facility could result in additional wells and projects for Statfjord Øst. The main planned activity for Statfjord Øst is related to the gas lift project, which includes providing agas lift solution for both subsea production templates and drilling new wells capable of producing with gas lift.