After the spinner calibration was completed in the vertical section of the well, the Well Tractor® was activated in low speed for the PLT to acquire the first down pass logging while tractoring. After the up pass, the Well Tractor® was started again in high speed to acquire the second down pass, before the job was completed with an up pass at 30 m / min.
Real time and post job LQC confirmed the good quality of the recorded data. Unlike Coiled Tubing conveyed PLTs, where the data can often be affected by choking the well or incomplete datasets due to damaged tools, there were no missing data with the Well Tractor® conveyed PLT.
When the tools were retrieved to surface for inspection, no damage was observed on the spinner.
Besides being the first company to successfully run a PLT on a wireline tractor with full 3rd party Logging While Tractoring capability in Algeria, Welltec® yet again challenged conventional thinking by demonstrating that lightweight wireline interventions outperform in many cases traditional Coiled Tubing based operations, both from safety and service quality standpoints.
The client recognized the added value of Well Tractor® to the Production Logging market, while acknowledging the excellent job execution, light operation handling and simplified coordination.