Customer Challenges
- An operator sought a solution to reduce vibrations and BHA damages in the Middle East
- An operator in the Middle East sought a solution to achieve vibration mitigation and bottom hole assembly (BHA) protection while drilling a 8 1/2” lateral section. They also wanted to increase the overall efficiency of the drilling operation
Expro Excellence
The HI TOOL® was selected to provide optimum vibration mitigation and BHA protection while drilling, and was positioned above the logging while drilling (LWD) tool. This would decouple the drillstring from the important directional tools in the lower BHA. By protecting the lower BHA, the rotary steerable system (RSS) would track truer and the bit would stay directly engaged to the formation enabling more efficient drill
Value to Client
- The presence of the HI TOOL® placed above the LWD tool allowed for an efficient redistribution (decoupling) of the vibration energy back into the wellbore. This resulted in a more efficient transmission of torque energy down to the bit for more efficient drilling and
protected the LWD/MWD tools from vibrational harmonics. Mitigating these vibrations also allowed for the use of higher rotations per minute (RPM) with lower weight on bit (WOB) - Successfully drilled the longest drain geosteering section in field, 12,140 ft in length
- Achieved the highest average ROP (86 fph) and highest average on bottom ROP (122 fph) in field
- Customer stated that the synergy between the bit, RSS, HI TOOL®, and NAF delivered a safe operation and smooth hole trajectory
- Reduced axial vibrations, lateral vibrations, and stick-slip
- Bit came out in green, rerunnable condition with dull grading 1-1-WT
Contact
For further information, please contact wellconstruction@expro.com.
