whipstock

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whipstock

[′wip‚stäk]
(petroleum engineering)
A long wedge dropped or placed in a petroleum well in order to deflect the drill from some obstruction.
References in periodicals archive ?
The full complement of downhole tools: downhole motors, whipstocks, window milling, shock subs and jars are giving the Company a suite of tools that is lending itself to one-stop shopping.
will supply Western Europe with oilfield equipment including its core products of downhole motors, whipstocks and milling services and shocks and jars.
Beaver Oil Tool designs, manufactures and supplies whipstocks and mills and provides milling services.
Beaver), a supplier of whipstocks and milling services to oilfield customers since 1991.