borehole deviation angle

См. также в других словарях:

• Deviation survey — A Deviation survey[1], more generally known in the oil industry as simply a survey , is the measurement of a borehole s departure from the vertical, measured in degrees (°). When a well plan dictates the drilling of a straight borehole, surveys… …   Wikipedia

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• clinograph — ˈklīnəˌgraf noun ( s) Etymology: clin + graph 1. : an instrument for ascertaining the deviation from the vertical of a borehole, well, or shaft 2. : a drawing instrument having two straight edges united by a hinge and capable of being set at any… …   Useful english dictionary