УДК 622.24

THE IMPROVED THREADED TOOL JOINT OF DRILLING PIPES

Korabelnikov M.I. – Candidate of Technical Sciences, associate professor of the Department "Oil and Gas Engineering", a branch of FSBEI HE Tyumen industrial university in Nizhnevartovsk, korabelnikovmi@mail.ru

Bastrikov S.N. – Doctor of Technical Sciences, the Professor of the Department "Drilling of oil and gas wells", FSBEI HE Tyumen industrial university, ovchinnikovvp@tyuiu.ru ovchinnikovvp@tyuiu.ru

Ovchinnikov V.P. – D.Sc. in engineering, Professor, Industrial University of Tyumen, ovchinnikovvp@tyuiu.ru ovchinnikovvp@tyuiu.ru

Aksenova N.A. – Candidate of Technical Sciences, associate professor of the Department "Oil and Gas Engineering", a branch of FSBEI HE Tyumen industrial university in Nizhnevartovsk, na-acs@yandex.ru

Key words: well, drill pipes, threaded joint, accidents, nipple, coupling, torque at screwing, sealness, wear resistance, operational life.

The improved threaded conical tool joint of drilling pipes applied while drilling deep and complex oil and gas wells as well as in the construction of side boreholes and multi-hole wells is designed by authors.

The application of developed threaded lock joint of drilling pipes while boreholes deepening will allow increasing the solids-carrying capacity of the joint, sealness and increasing its operational life.