Pressure difference monitoring at downhole screw motors operation

Authors: D.F. Baldenko (Burovaya Tekhnika NPO OAO), F.D. Baldenko (Gubkin Russian State University of Oil and Gas, RF, Moscow)

Key words: positive displacement downhole motor (PDM), differential pressure, monitoring, pressure drop, drilling technology, operating elements.

Pressure difference monitoring at downhole screw motors operation is one of the effective ways of control of regime parameters and management of hydraulic energy at destruction of rocks in the process of wells drilling. Features of characteristics of these motors, depending on pressure difference, and the factors, influencing a choice of allowed pressure difference at operation and design of specified motors, are considered.

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