Published August 2023, Pg. 25-29

Section: Oil field equipment

UOT: 621.81

DOI: 10.37474/0365-8554/2023-8-25-29

Viscosity properties of material and its effect on the stress-strain state and vibrations of drilling pipes

A.S. Karimova Cand. in Phis.-Math. Sc. - Oil and Gas University named after Safi Utebayev

L.O. Mardanova Cand. in Phis.-Math. Sc. - Oil and Gas University named after Safi Utebayev

R.M. Rahatova Cand. in Phis.-Math. Sc. - Oil and Gas University named after Safi Utebayev

The paper deals with the problems of the dynamics of deformable systems, to which the oscillations of drill pipes related. The stress-strain state of drill string pipes significantly depends on the contact conditions with the external environment. The study of wave phenomena in the assembly of drill strings is associated by the solution of the problem of eliminating sticking – the loss of mobility of the pipe string in the well, which is not restored even when the maximum allowable static axial thrust is applied to the string. Along with it, the effect of the viscosity properties of the material on non-stationary vibrations of pipes is considered.

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