FIELD: mining.
SUBSTANCE: offered by computer implemented method of well survey, including: receipt of the well survey results, describing wells drilled from the surface to the subterranean target. At that the well is correlated with the target path, along which the drilling should be done from the surface to the subterranean target. The method further comprises the steps, at which the following is carried out: calculating of uncertainty indicator, designated the uncertainty in well drilling at the target trajectory, based at least partly on the results of well survey and on the target trajectory; and a visual display of the uncertainty indicator in the user interface, so that the factors of well survey, affecting the uncertainty indicator and thus the uncertainty at well drilling.
EFFECT: invention provides the control of the various factors influence on the accuracy of well survey and well drilling plan.
20 cl, 5 dwg
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