The Troll Story

摘要

Accumulated oil production from the Troll field offshorernNorway will reach one billion barrels of oil in the spring ofrn2005. At 315-340 meters water depth, Troll is an oil and gasrnfield with approximately 1,700 billions Sm3 of gas and fourrnbillion barrels of oil in place. Troll consists of two mainrnstructures, Troll East and Troll West, the latter divided into anrnoil and gas province. The oil is located primarily in Troll Westrnin thin oil layers of 4-27 m.rnThis article describes how the Troll West field has beenrndeveloped from a gas field with no commercial oil to a gas andrnoil field with accumulated production surpassing one billionrnbarrels of oil during the spring 2005.