u0433u0435u0440u043cu0435u0442u0438u0447u043du043eu0435 bolted joint pipe oil field

摘要

the invention belongs to the field of oil and gas wells and can be used in casing pipe technological purpose.u0433u0435u0440u043cu0435u0442u0438u0447u043du043eu0435 bolted joint of pipes includes a field covered by the covering pipe with a conic u0440u0435u0437u044cu0431u0430u043cu0438, rubber and hard u043fu043eu0432u0435u0440u0445u043du043eu0441 difficulty.u0443u043fu043bu043eu0442u043du0438u0442u0435u043bu044cu043du044bu0435 surface contact between a u0440u0430u0434u0438u0430u043bu044cu043du043eu043c direction.u0443u043fu043bu043eu0442u043du0438u0442u0435u043bu044cu043du044bu0435 surfaces are respectively covered on the outer surface of u0442u043eu0440u0446u0435u0432u043eu0433u043e station and on the inner conical surface covering the area between the conical screw threadsthe body and the tube.hard surfaces are respectively covered by the tube in the form of a conical end surface with an angle in the direction of the axis of the cone 5u00b0u2264u03b2u226425u00b0 conical r u0435u0437u044cu0431u044b and a conical face onu0432u0435u0440u0445u043du043eu0441u0442u0438 for covering pipe, made the first conical surface transition the pipes to her body. the profile of conical thread is negative in a corner on the edge.the height profile of the pipe is less than the height of a groove covering pipes.u0443u043fu043bu043eu0442u043du0438u0442u0435u043bu044cu043du0430u044f surface u0442u043eu0440u0446u0435u0432u043eu0433u043e area covered by the pipes at the beginning and in the end zone for radial sealing has a spherical shape.the invention allows to increase the reliability and the connections in the context of u0438u0437u0433u0438u0431u043du044bu0445 deformations.