Well Cleaner® RCB preps well for 'Plug & Perf'
WELLS PREPARED IN THIS FASHION60
WELLBORES HAVE BEEN CLEARED IN ONE RUN98%
WELL TRACTOR® RUNNING SPEED15-20 m/min
Later, subsequent e-line runs would be carried out in collaboration with the frac unit to pump the perforating guns and plugs into position to accomplish simultaneous well fracking operations.
For the primary wellbore clean-out, the Well Tractor was run to provide conveyance, weight on bit and provide anti-rotation. The Well Miller® RCB, the BHA on this run, utilized a custom-sized bit to mill debris while creating a draw down force, mobilizing and collecting it within integral bailer sections of the tool. This run ensures a clear wellbore enabling slick deployment of the upcoming perforating services.
To date, using this technology, 98% of the wellbores have been cleared in one run to TD, all returning to surface with various volumes of cement stringer debris. Utilizing this e-line technology, no additional fluids are required. The well is cleaned-out without requiring pumps, storage, heating or other supplementary services onsite.
A second deployment in the well utilizes the Well Tractor to simultaneously convey 3–4 perforating guns and a plug. Running at speeds of 15–20 meters per minute and utilizing select fire technology, the perforating guns are deployed to their various, required depths before being selectively fired across the required intervals.
The Well Cleaner Reverse Circulating Bit (RCB) integrates a rotary bit with a suction system to provide the combined benefits of both in one tool. This design breaks through hard packed debris and recovers the cuttings into the integrated bailers.
The Well Tractor was regarded as a revolution in the industry when it was introduced in the 1990’s. It enables operators to extend the reach of traditional e-line deployment into highly deviated and horizontal wells.