Submit an Article
Become a reviewer

Methodology for determining the parameters of drilling mode for directional straight sections of well using screw downhole motors

Vladimir S. Litvinenko1
M. V. Dvoinikov2
Date submitted:
Date published:


Article presents results of study on possibility of increasing the efficiency of drilling directional straight sections of wells using screw downhole motors (SDM) with a combined method of drilling with rotation of drilling string (DS). Goal is to ensure steady-state operation of SDM with simultaneous rotation of DS by reducing the amplitude of oscillations with adjusting the parameters of drilling mode on the basis of mathematical modeling for SDM – DS system. Results of experimental study on determination of extrema distribution of lateral and axial oscillations of SDM frame depending on geometrical parameters of gerotor mechanism and modes ensuring stable operation are presented. Approaches to development of a mathematical model and methodology are conceptually outlined that allow determining the range of self-oscillations for SDM – DS system and boundaries of rotational and translational wave perturbations for a heterogeneous rod with an installed SDM at drilling directional straight sections of well. This mathematical model of SDM – DS system's dynamics makes it possible to predict optimal parameters of directional drilling mode that ensure stable operation of borehole assembly.

Go to volume 241

Similar articles

Assessment of operational reliability of quarry excavator-dump truck complexes
2020 V. M. Kurganov, M. V. Gryaznov, S. V. Kolobanov
The relationship of fracture toughness coefficients and geophysical characteristics of rocks of hydrocarbon deposits
2020 Yu. A. Kashnikov, S. G. Ashikhmin, A. E. Kukhtinskii, D. V. Shustov
Testing of preformed particles polymer gel technology on core filtration models to limit water inflows
2020 Yu. A. Ketova, B. Bai, G. P. Khizhnyak, Ye. A. Gladkikh, S. V. Galkin