sidetracking
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sidetracking
[′sīd‚trak·iŋ] (engineering)
The deliberate act or process of deflecting and drilling a borehole away from a normal, straight course.
(petroleum engineering)
Drilling procedure to bypass a broken drill or casing permanently lodged in the hole being drilled for an oil well, usually by using a whipstock.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.