Increase ROP in high-shock-and-vibration environment
Pad 3 of a six multiwell pad operation in an eastern Russia field was
close to the margin of the oil reservoir, and an area with 90% sandstone and
mudstone in the formation. Consequently, the operator's main drilling challenge
involved overcoming excessive shock and vibration while drilling the 6-in
horizontal interval.
Historically, these harsh drilling conditions have led to slow ROP,
increased tool failures, stick/slip issues,poor steerability, and lost rig
time. In previous wells, the operator applied different BHA
configurations,stabilizers, and bit designs with no significant improvements in
drilling efficiency.
Use PowerDrive vorteX RSS to improve drilling performance
Schlumberger recommended deploying the fully rotating PowerDrive vorteX
powered RSS to drill the horizontal section. The system's fully integrated
power section converts mud hydraulic power to mechanical
energy—mitigating drilling risks and increasing ROP in challenging
drilling environments.The unique design of PowerDrive vorteX system maximizes
power at the bit, delivering longer runs,faster penetration rates, and greater
trajectory control than conventional motors.
Drilled challenging horizontal section 67% faster
Using the PowerDrive vorteX RSS, the operator drilled to TD at 3,478-m
MD [11,410-ft MD] with no shock and vibration or stick/slip issues. The RSS
reduced total shock count from approximately 2 million to just 10,000, enabling
an increase in average ROP for the horizontal section from 12 m/h to a record
20 m/h. This saved the operator 25 hours of rig time.
