deviation survey

deviation survey

[‚dēv·ē′ā·shən ′sər·vā]
(petroleum engineering)
Measurements made during a drilling operation to determine the angle from which the bit has deviated from the vertical.
References in periodicals archive ?
Tenders are invited for Supply of Multi shot digital unit for capturing Compass-inclinometer images of Bore hole deviation survey system, with mechanical accessories.
Mandate well operators to supply a well bore deviation survey to coal owners within 60 days of completion of drilling operations.
Subsequent well bore deviation surveys indicated that a severely deviated well bore was most likely the cause of the incident.
Smart batch loaders can rapidly load massive volumes of data -- well headers, LAS files, deviation surveys, zones, zone parameters and well tops -- to get the job done in a fraction of the time typically required.