"Archimedes" in a well
UDC: 622.24
DOI: 10.33285/0130-3872-2022-8(356)-58-64
Authors:
LIKHUSHIN ALEXANDER M.
1,
LIKHUSHIN IGOR A.2
1 Gazprom VNIIGAZ, Moscow, Russia
2 Pre-University of National Research Nuclear University MEPhI, Moscow, Russia
Keywords: buoyancy, fluid density, buoyancy force, pipe string, overpressure, buoyancy coefficient
Annotation:
The article presents an in-depth interpretation of Archimedes law in relation to the hydraulics of a vertical and inclined well, the drill string buoyancy is considered, including those consisting of pipes of different diameters in solutions of different inside and outside densities. The classical definition of Archimedes law has been refined. The coefficient of relief is theoretically substantiated. The required condition for the Archimedes law operation in a well is given. The necessity of taking into account buoyancy in engineering calculations in drilling is shown to prevent complications.
Bibliography:
1. Aleksandrov M.M., Pulya Yu.A. K voprosu ucheta sil plavuchesti, deystvuyushchikh na kolonnu trub v skvazhine // Izv. vuzov. Neft' i gaz. – 1975. – № 11. – S. 19–22.
2. Mochernyuk D.Yu. Eksperimental'naya illyustratsiya fizicheskogo soderzhaniya zakona Arkhimeda // Izv. vuzov. Neft' i gaz. – 1990. – № 3. – S. 65–70.
3. Dadashev B.B. Vliyanie vnutrennego gidrostaticheskogo davleniya na prodol'nuyu ustoychivost' niza buril'noy kolonny pri turbinnom sposobe bureniya neftyanykh skvazhin // Neft. khoz-vo. – 1953. – № 12. – S. 16–20.
4. Iaonnesyan R.A. O vliyanii vnutrennego davleniya na prodol'nuyu ustoychivost' niza buril'noy kolonny v turbinnom burenii // Neft. khoz-vo. – 1954. – № 4. – S. 5–9.
5. Aadnoy B.S. Mechanics of Drilling. – Aachen: Shaker Verlag, 2006. – 198 p.
6. Aleksandrova N.V. Matematicheskie terminy (spravochnik). – M.: Vysshaya shkola, 1978. – S. 150–151.
7. K voprosu tsementirovaniya napravleniy morskikh skvazhin s podvodnym raspolozheniem ust'ya v usloviyakh nalichiya geologo-tekhnologicheskikh oslozhneniy na primere mestorozhdeniy shel'fa o. Sakhalin / V.E. Petrenko, G.S. Oganov, A.M. Likhushin, A.V. Potapov // Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2020. – № 7(331). – S. 43–48. – DOI 10.33285/0130-3872-2020-7(331)-43-48
8. Aadnoy B.S., Kaarstad E. Theory and Application of Buoyancy in Wells // IADC/SPE Asia Pacific Drilling Technology Conf. and Exhibition, Bangkok, Thailand, Nov. 13–15. – 2006. – DOI: 10.2118/101795-MS
Back to issue