| 摘要 |
A tractor assembly for downhole hydrocarbon applications employing multiple tractors simultaneously. The assembly is hydraulically driven and may provide a substantial increase in the total load accommodated via downhole tractoring. Thus, coiled tubing operations may be run at extensive well depths. Additionally, the load accommodated by the assembly may be hydraulically balanced among the multiple tractors of the assembly through a variety of techniques. In this manner, the total accommodated load may be improved and wear on the uphole tractor of the assembly reduced. |
