Analysis of the force conditions of pressing drill pipes with external spiral finning
UDC: 622.244.5
DOI: 10.33285/0130-3872-2022-11(359)-9-12
Authors:
KASHAEV DENIS V.
1,
ZHIVAEVA VERA V.2,
KARGIN BORIS V.2,
BUKIN PAVEL N.2
1 SamaraNIPIneft, Samara, Russia
2 Samara State Technical University, Samara, Russia
Keywords: light-alloy drill pipes, hot pressing method, pressing of drill pipes with spiral finning, pressing forces of spiral pipes
Annotation:
Based on I.L. Perlin methodology, taking into account the balance of active and reactive forces, a formula for calculating the pressing force of drill pipes with spiral finning is proposed. The cross section of the spiral pipe is presented as a smooth pipe with a helical metal texture and external spiral fins. A component has been added to the formula that takes into account the energy spent on the helical movement of the metal. It is shown that the resulting force is 28 % greater than the pressing force of a smooth pipe of the equal area. An increase of the helix angle of the fins causes an increase of force compared to the pressing force of longitudinally finned tubes.
Bibliography:
1. Fayn G.M., Makarov E.M. Sostoyanie i perspektivy proizvodstva i primeneniya trub neftepromyslovogo sortamenta iz alyuminievykh splavov // Territoriya Neftegaz. – 2007. – № 5. – S. 66–70.
2. Severdenko V.P., Muras V.S., Sukhodrev E.Sh. Goryachee gidrodinamicheskoe vydavlivanie rezhushchego instrumenta. – Minsk: Nauka i Tekhnika, 1974. – 254 s.
3. Perlin I.L., Raytbarg L.Kh. Teoriya pressovaniya metallov. – M.: Metallurgiya, 1975. – 447 s.
4. Ermanok M.Z. Pressovanie paneley iz alyuminievykh splavov. – M.: Metallurgiya, 1974. – 231 s.
5. Ermanok M.Z., Kagan L.S., Golovinov M.F. Pressovanie trub iz alyuminievykh splavov. – M.: Metallurgiya, 1976. – 247 s.
6. Starostin Yu.S., Golovinov M.F., Kargin V.R. Rebristye truby iz alyuminievykh splavov. – M.: Metallurgiya, 1983. – 133 s.
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