案例分享 Drilling Deep: District Heating and Geothermal Power, Germany
Advanced RSS technology enables drilling a 6 1/8-hole to achieve production targets.
Rotary steerable system
The PowerDrive X6 RSS maximizes each well’s productive potential, putting wells in the best place in less time. Because it delivers smoother wellbores, postdrilling operations such as running casing and wireline logging are simplified.
In applications where RSSs were not previously viable, a fully rotating steering system is now available with the PowerDrive X6 RSS. It delivers 3D well profiles and drills high-angle wells more efficiently compared with positive displacement motors. Near-bit measurements, available in real time, ensure accurate, productive drilling and wellbore placement.
The PowerDrive X6 RSS is designed for full directional control while rotating the drillstring. Efficient downlink systems and automatic inclination hold provide a smooth tangent section and improve true vertical depth accuracy in the horizontal section—critical for maximizing recoverable reserves and the well’s production potential. A triaxial sensor package facilitates fast, responsive directional control in either automatic or manual operation mode. Optional near-bit azimuthal gamma ray sensor enables fast response to formation changes.
PowerDrive X6 RSS provides an optional hybrid service option for increased dogleg capability in challenging environments. The combination of PowerDrive X6 push-the-bit RSS with an inline flex joint enables the system to use point-the-bit principles to meet demanding trajectory requirements. The result is a fully rotating hybrid system that bends the BHA at a higher dogleg severity.