Powerful reverse tractoring capability
The simple, robust TuffTRAC cased hole services tractor brings reverse
tractoring to high-angle and horizontal wells along with active traction
control to continuously control the radial force applied by the tractor arms.
With low sensitivity to wellbore conditions, the TuffTRAC tractor is ideal for
any cased hole service, including perforating and intervention operations. Its
electromechanical drive system optimizes the consumption of available surface
power, achieving more than 45% conversion efficiency from the supplied
electrical power to mechanical tractoring force. The resulting lower power
requirements do not stress auxiliary systems and the tractor does not have to
be stopped to cool down, even during long, continuous deployments.
Successful recovery by TuffTRAC tractor
Because the TuffTRAC cased hole services tractor incorporates reverse
tractoring capability, it did not have to be reconfigured to reverse tractor
the perforating string from the well. The tractor directly applied overpull to
the gun string to avoid the safety and operational risks of exceeding the SWL
of the cable. A total of 3,850 ft of reverse tractoring to successfully
retrieve the perforating toolstring was performed over three runs because of
the adverse well conditions.