已发表: 03/30/2015
已发表: 03/30/2015
Petrobras achieved an inclination of less than 0.04°, maintaining verticality while drilling through 1,102 m of salt with the PowerDrive Orbit RSS. As a result, Petrobras minimized torque, drag, and casing wear, which was critical to the success of subsequent hole sections. The design of the PowerDrive Orbit RSS enabled precise directional control and high tolerance to heavy mud weight with automatic hold inclination and azimuth capability and metal-to-metal seals on the bias unit.
Hole size
17 1/2 in
Inclination
Less than 0.04°
Interval length
1,102 m [3,615 ft]
Estimated tortuosity of interval
0.02°
Precise directional control was needed to maintain verticality while drilling through 1,102 m of salt during a Petrobras deepwater exploration well campaign in a formation that requires heavy mud weight.
