Removing debris in extended unconventional
WELL TYPEOil well
The horizontal section stretched for 4,681 ft with a maximum deviation of 89°, which made the operation perfectly suited for the e-line Well Tractor®. In addition, the operator had applied Welltec’s cleanout solutions with great success before and trusted they could remove the debris in order to clear the path for a Well Tractor conveyed PLT run.
Two runs were completed with three bailer sections each. On the first run, the tool-string stopped 1,000 ft before Total Depth (TD) whereas the second run ran all the way along the horizontal section until reaching TD. A total of five gallons of debris was recovered from the well, including hardware from the milled frac plugs and some type of a viscous gel.
The operator is now analyzing the debris that the Well Cleaner PST retrieved from the well, which will allow them to optimize the planning of future cleanouts. Welltec’s performance also proved to them the ease with which Well Tractors can convey logging runs in extended reach wells.
Additional benefits from this e-line intervention include ease of logistics to mobilize, no need for tanks of fluids as the Well Cleaner PST works on suction versus injection and that it can be run in a producing well without shutting it in. This provides fast load-out, continued production and efficient operations since there is no need to let the well stabilize after a CT clean-out where large amounts of fluids are pumped into the well.
Our clean-out solutions ensure access into new wells and optimized production from old wells: removing sand and debris; cleaning SSSV seats; clearing obstructions; eliminating scale deposits; accessing isolation valves.
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.