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(Arms & Armour (excluding Firearms)) a whip handle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈʰwɪpˌstɒk, ˈwɪp-)

the handle of a whip.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Before emerging from it, the rattling of wheels approached behind us, and a stage-coach rumbled out of the mountain, with seats on top and trunks behind, and a smart driver, in a drab greatcoat, touching the wheel horses with the whipstock and reining in the leaders.
'In our rental tools business, our International rentals segment benefited from whipstock sales and continued demand for tubular running services, in particular our proprietary casing running tool.
Our upstream assets and service teams are present on every drilling rig in every field in our area of operation, providing one or more of our services in pressure pumping (cementing, stimulation and coiled tubing), well intervention (whipstock and fishing) and waste management (solutions for oil-based mud cuttings).
In California, Schlumberger sidetracking services successfully completed the first known three-casing whipstock exit in North America utilizing the Trackmaster whipstock and sidetracking system with a FasTrack one-trip mill to successfully mill through 7-in, 8 5/8-in and 13 3/8-in casings in a single run.
The new horizontal whipstock section will utilize the top hole section of the historical Cardiff wellbore, and will provide hundreds of meters of potential pay zone penetration versus the approximately 20 meters of vertical gas and condensate pay in the original well.
8 February 2012 - Petrolia Tool Pool AS, part of Norwegian oil rig operator Petrolia ASA (OSL:PDR), has agreed to buy an 85% stake in Netherlands-based well fishing, remedial and whipstock services firm Catch Fishing Services BV.
ORS is expected in mid-2012 to consolidate its cuttings management services, cathodic protection services, shutdown and turnaround services, whipstock services and its various joint venture services such as cementing and stimulation, painting and scaffolding, catering and life support for its current customers and focus on securing more wins locally with other Adnoc group operating companies, says a company spokesperson.
The rig is likely to set a whipstock and sidetrack the well to TD over the next 10 days.
Due to complications with installing the whipstock over the past few days, a cement plug has been placed at a higher level in the vertical leg of the well.