| 摘要 |
A portable hydraulic rig (10) for workover, drilling or other operations on existing wells in which the rig has a derrick (12) elevated on a base structure comprised of containers (14) for equipment used in association with drilling or workover activities, a work platform (13) including pipe rack sections (51, 52) for storing a plurality of Pipes, the derrick being open-sided with a power cylinder (20) at its upper end for lifting and lowering pipe sections away from and into each well, and hydraulic drive cylinders (18) for advancing the rig between Wells, the hydraulic components being controlled from the work platform. |
