The resistance of the tool on the drill pipe as it comes up out of the hole has almost zero weight to it. The weight of the operators is all that is required to keep the tool down. Special wiper blades are available for specific applications such as...
The wiper is made from 2 symmetrical halves which both have a flexible wiper insert that can accommodate different size drill pipes and drill collars. The operator simply wraps the tool around the drill pipe or drill collar and locks it into place...
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