FIELD: measuring equipment.
SUBSTANCE: method using a borehole tool comprises gimballess inertial navigation system, consisting of an electronics module with three axis angular velocity sensor attached to it, and located so that one of its sensitive axes lying on the downhole tool axis and triaxial sensor linear acceleration, so positioned that one of its axes lying on the sensitivity axis of the downhole tool, and the other two are parallel to two axes of sensitivity of the angular velocity sensor, comprising calculating vectors acceleration and displacement of the downhole tool in the base coordinate system, the result of which is to determine the vertical depth and path length, which are recorded by electronic unit.
EFFECT: increasing the accuracy of measurement of these parameters and, consequently, the accuracy of linking the data of borehole studies to the geological section.
2 cl, 2 dwg
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