Logging 14" casing with 412 Well Tractor®
Max. temperature212°F (100°C)
Distance tractored3,609 ft (1,100m)
Time of operation18 hrs
During job planning, a third party tried to convince the client that there would be telemetry issues when combining their electronically controlled release device system with the Well Tractor. This is not true and was confirmed by a successful System Integration Test (SIT) done as part of the pre-job planning.
Consequently, the 412 Well Tractor was used to convey the third party CBL toolstring in the 9 5/8” casing for cement integrity evaluation. The e-line provider, SLB, had failed three times to get their TuffTrac to work.
The client decided to log deeper than the initial target depth so the toolstring was run back from the casing shoe by gravity to a depth of 9,692 ft (2,954m). Here the Well Tractor was powered up and successfully conveyed the toolstring to the new target depth of 11,959 ft (3,645m) for logging.
The Well Tractor 412 had one chance and a 100% success rate. The operation was accomplished in approximately 18 hours and the Well Tractor was activated to convey the tools over a distance of 3,609 ft (1,100m).
Philip Neff, BP Ops Petro physicist
I was very impressed with the team’s motivation and participation in all aspects of the job from safety to execution. I have great faith in your guys’ abilities after seeing this well.
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.