| 摘要 |
A pair of side members are placed on either side of a well. The side members are connected by an axle running through a top of the side members with a sheave between them. A flexible pipe such as used to suspend a submersible pump may be pulled from the well by connecting the flexible pipe to a pickup and driving the pickup away from the well. A cable may be pulled from the well by attaching it to a windlass drum and winding it upon the windlass drum adjacent to the sheave. A jiggler may be placed between the windlass drum and sheave to jiggle the cable as desired.
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