FIELD: petroleum industry.
SUBSTANCE: invention relates to petroleum industry, particularly to drilling wells and can be used for monitoring the drilling process. For this purpose the method envisages inclusion of the acoustic rejection filter in the injection line and transmitting acoustic information from the bore bit and the turbodrill, operating at the well face. Then interferences of the drilling pump that generates wide-band frequency spectrum of sound waves directed toward the face information propagating from the bore bit and the downhole motor is suppressed by the acoustic rejection filter. The control over the axial load on the bore bit is exercised by the surface measuring complex by the integral energy level of the frequency spectrum of sound waves in the suppressed band of frequencies generated by the drilling pump. The drilling efficiency factor is calculated by the mathematical formula.
EFFECT: increased reliability of determination of the drilling efficiency factor.
9 dwg
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