PETROLEUM DIRECTORY: Schlumberger, GlobalSantaFe honored by BG Group for well design work

Petroleum News

Schlumberger Oilfield Services, in conjunction with GlobalSantaFe, has received an award for its work in the North Sea for BG Group, the big British gas company.

The two firms designed and executed a multilateral openhole sidetrack for BG’s Minerva-Hub development wells in the southern North Sea.

The companies were honored as winner of the “Alliance with External Parties” category in the annual BG Chief Executive Innovation Awards. There were 116 submissions in that category.

“Winning the award is a tribute to the teamwork displayed by the staff of both companies in delivering an appropriate solution to the Minerva development drilling programme,” said Jon Wormsley, an executive vice president for BG Group. The award was announced Feb. 25.

The initial Minerva well flowed at a rate far below production estimates, even though it was a 2,000-foot horizontal sidetrack of the original exploration well.

To ensure the liner could be run to total depth, openhole laterals were drilled, exiting on the high side of the main well bore whether they were to go up or down. The laterals acted as pilot holes to establish the position of the well in the reservoir, as well as intersecting more high permeability layers.

The 47/3c-M1 on Minerva was completed with three laterals through three fault blocks, nearly doubling production.