Between the tractor+perf+plug runs Welltec’s engineers focused on maintaining efficiency. They checked the tools and completed all pre-run tests to ensure reliability and had the toolstring loaded and ready in the lubricator for immediate deployment when the frac finished.
A key feature of the Well Tractor was that it provided a controlled descent and speed through the patch while also centering the toolstring. This helped to prevent the plug from hanging up on the runs.
When running in hole the Well Tractor used gravity and pumping to descend to a depth of ~150 ft above the patch. From
there the Well Tractor conveyed the plug and guns through the patch. Once successfully through, the toolstring was umped the last way down to finish the run.
In total, Welltec conducted 11 runs in 37 hours of well time with no misruns or non-productive time. The operation demonstrated Welltec’s ability to handle downhole challenges in a speedy manner while increasing safety and service quality. Only a crew of two engineers was needed on location and the frac crew did not have to move any equipment to accommodate Welltec’s e-line unit. Safety during the operation was also ensured through the use of Welltec’s safe subs and electronic barriers. The e-line solution saved the operator several days compared to deployment on coiled tubing and provided tremendous cost savings through the gained e-line efficiencies.
WELL TYPE: OIL PRODUCER
MAX. TEMPERATURE: 315° F
LATERAL SECTION: 5,500 FT
MAX. DEPTH: 19,387 FT
MAX. DEVIATION: 89°
MAX. PRESSURE: 8,000 PSI
DISTANCE TRACTORED: 6,943 FT FOR ALL 11 STAGES