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"REPORTER of the Association of Drilling Contractors" N 2, 2010

IMPROVING THE ACCURACY OF HYDRAULIC FORGING OF LIGHT WEIGHT ROTORS AND OUTPUT PERFORMANCE OF DOWNHOLE SCREW MOTORS

mitry A. Goldobin – lead engineer, LLC “VNIIBT-Burovoy Instrument”, dgoldobin@integra.ru dgoldobin@integra.ru
Yury A. Korotaev – chief research officer, LLC “VNIIBT-Burovoy Instrument”, ykorotaev@integra.ru
Oleg I. Fufachev – junior research officer, LLC “VNIIBT-Burovoy Instrument”, ofufachev@integra.ru ofufachev@integra.ru

УДК 622.24; 622.276:658.58
Key words: downhole screw motor, light weight rotor, forging press, tooth profile, accuracy, output performance.

The article provides design details of a forging press for manufacturing of long-length thin-walled screw-type steel lining of rotors of screw downhole motors. It is shown that the accuracy of rotor tooth profile has a significant effect on output performance of screw downhole motors. Factors are described that influence the accuracy of tooth profile,  the details of improved manufacturing technology and  results of field tests of screw downhole motors with light weight rotors are provided.

IMPROVING THE ACCURACY OF HYDRAULIC FORGING OF LIGHT WEIGHT ROTORS AND OUTPUT PERFORMANCE OF DOWNHOLE SCREW MOTORS

Dmitry A. Goldobin – lead engineer, LLC “VNIIBT-Burovoy Instrument”, dgoldobin@integra.ru
Yury A. Korotaev – chief research officer, LLC “VNIIBT-Burovoy Instrument”, ykorotaev@integra.ru
Oleg I. Fufachev – junior research officer, LLC “VNIIBT-Burovoy Instrument”, ofufachev@integra.ru

Key words: downhole screw motor, light weight rotor, forging press, tooth profile, accuracy, output performance.

The article provides design details of a forging press for manufacturing of long-length thin-walled screw-type steel lining of rotors of screw downhole motors. It is shown that the accuracy of rotor tooth profile has a significant effect on output performance of screw downhole motors. Factors are described that influence the accuracy of tooth profile,  the details of improved manufacturing technology and  results of field tests of screw downhole motors with light weight rotors are provided.

 

 

Издан 3 номер за 2024 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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