ПРУЖНО-ДЕФОРМОВАНИЙ СТАН МУФТОВОГО З’ЄДНАННЯ ОБСАДНИХ ТРУБ З ГЕРМЕТИЗУЮЧИМ ЕЛЕМЕНТОМ У ВИСОКОТЕМПЕРАТУРНИХ СВЕРДЛОВИНАХ

Abstract

During the casing operation under the conditions of the increased temperature and pressure, the elements of the clutch coupling are effected by great static and dynamic stresses, thermal cyclic loadings that lead to the elastic and plastic deformations of the section of the coupling, pipes and sealing elements that influence the hermiticity and the endurance of the casing and heat flow pipes.

The structure of the highly– hermetic threaded casing joint with the sealing element has been suggested. The analytical dependences for the estimation of the deformation magnitude that appear on the tapered surfaces of the sealing element and coupling under internal contact pressure and temperature have been received. The maximum safe contact pressures in the unit of the joint sealing have been determined. The results of the experimental investigation that proved the high hermeticity of the casing with the suggested clutch coupling have been introduced.