"REPORTER of the Association of Drilling Contractors" N 1, 2013

IMPROVING DESIGN OF THREADED CONNECTIONS FOR OIL WELL PIPES AND DOWNHOLE MOTORS.

УДК 622.24
Semin, Vladimir I. – Dr.Tech.Sci., chief scientific employee, OJSC NPO Burovaya Tekhnika, symin.v@mail.ru symin.v@mail.ru 

Key words: tapered thread connection, tool joint, calculation method, fatigue strength, strength, integrity, service life after spinning-up, field test, structural optimization, operating conditions, rational development, permissible load.
The paper provides details of the main phases of works to improve performance parameters of tapered thread connections of drill pipes, casings and tubing, based on the results of a large-scale field testing of static strength, fatigue and integrity. Emphasis is put on the new methods of calculation and designing of optimal tapered thread connections, based on the initial data including specified dimension, and analysis of strength and integrity of an actual connection depending on the various technical factors and operating conditions. The paper provides advanced technological solutions to improve performance capability  of tapered thread connections.

IMPROVING DESIGN OF THREADED CONNECTIONS FOR OIL WELL PIPES AND DOWNHOLE MOTORS.

Semin, Vladimir I. – Dr.Tech.Sci., chief scientific employee, OJSC NPO Burovaya Tekhnika, symin.v@mail.ru

Key words: tapered thread connection, tool joint, calculation method, fatigue strength, strength, integrity, service life after spinning-up, field test, structural optimization, operating conditions, rational development, permissible load.
The paper provides details of the main phases of works to improve performance parameters of tapered thread connections of drill pipes, casings and tubing, based on the results of a large-scale field testing of static strength, fatigue and integrity. Emphasis is put on the new methods of calculation and designing of optimal tapered thread connections, based on the initial data including specified dimension, and analysis of strength and integrity of an actual connection depending on the various technical factors and operating conditions. The paper provides advanced technological solutions to improve performance capability  of tapered thread connections.

 

Издан 4 номер за 2021 год ежеквартального научно — технического и производственного журнала "Bulletin of the Association of Drilling Contractors"

ISSN 2073-9877

The scientific and technical journal, “Bulletin of the Association of Drilling Contractors”, is listed by the Higher Attestation Commission of the RF Ministry of Education and Science as one of the leading refereed journals and publications that feature main scientific results of doctoral and candidate’s dissertations.

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