Operator: Equinor

Field: Troll

Other info:

The subsea production system involves the construction of subsea well templates, the drilling of eight production wells, laying a 36-inch pipeline and installing a new process module on the Troll A platform.

Troll

Troll is a field in the northern part of the North Sea. The water depth in the area is 300-330 metres. Troll was discovered in 1979, and the initial plan for development and operation (PDO) was approved in 1986, and updated in 1990. Production started in 1995.

A phased development was pursued for the Troll field, with Phase I recovering gas reserves in Troll Øst and Phase II focusing on the oil reserves in Troll Vest.

Troll Phase I has been developed with Troll A, which is a fixed wellhead and compression facility with a concrete substructure. Troll Phase II was developed with Troll B, a floating concrete accommodation and production facility, and Troll C, a semi-submersible accommodation and production steel facility. 

Troll Phase III (gas production from Troll Vest) started in 2021.

Source: norskpetroleum.no