N/A BHA LL with Faroe

Brasse (31/7-3 S) – Top hole

What happened:

Drilling 36″ was a challenge – boulders from just below seabed(148 m) to 181 m. Repeated reaming required to maintain hole angle below 1 deg. Even in the softer boulder-free area below 181 m the BHA tried to build – further reaming was required to keep below 1 deg at TD. BHA had a 36″ SS (1/8″ UG) above the bit sub (5 m above the bit) and a 17 1/2″ at 20 m above the bit.

What was planned:

Drill 36″ through boulders

What was learned:

DDs onboard had no recommendations to change if same formation encountered in future. Patience with the BHA proved worthwhile, managed to achieve less than 1 deg angle at TD.

What actions are required:

NA.