MPD technology enables drilling in Pakistan's Badhra field

摘要

A new control system enables influxes and losses to be managed while navigating narrow pressure margins and ultimately allows access to a deep, previously unreachable drilling target. In 1998, Lasmo Oil began drilling the Badhra #2 well, targeting the Lower Cretaceous Goru and Sembar sands. However, a high-pressure sequence forced the operator to stop. Available casing strings were consumed at a measured depth (MD) of 11,483 ft (3,500 m); furthermore, managing the high levels of background gas and fluid losses in the 6-in. hole proved impossible.