ANALYSIS AND JUSTIFICATION OF SELECTING CLEANING AGENTS AND TECHNOLOGY OF THEIR APPLICATION IN PERMAFROST WELL DRILLING

Abstract


The study is focused on improving efficiency of well cleanout in permafrost conditions using cleaning agents of low thermal conductivity. At present drilling in hard conditions, e.g. abnormal reservoir pressures (low or high), unstable rock, rock of higher hardness, permafrosts and so on, gains momentum. Permafrost areas are common in Russia, covering 10 million km2 in different regions and thus totaling more than 50 % of the whole territory of Russia. Large parts of Alaska (USA) and Canada also contain permafrost. A big number of oil and gas fields are located in these areas; that is why developing technologies of well drilling in hard conditions draws much attention. In doing so a depth of permafrost can reach 1400 m (for instance, the Markhinskaya well in the northwestern part of Yakutia) but usually it is 600-700 m. The permafrost temperature can make -8 °C though it mainly fluctuates between 0 and -2,5 °С. The paper offers the analysis of the Russian and foreign experience related to well drilling including cleanout by different agents and technologies of their cooling. The Russian practice based on traditional technologies tells us that defrosting, destruction of permafrost leads to a number of complications, particularly in the wellhead area resulting in poor well performance. The cleaning agents investigated include cooled air, gas-liquid disperse systems and flushing fluids.


About the authors

A. A Iakovlev

National Mineral Resources University (University of Mines)

Author for correspondence.
Email: andre_a_yakovlev@mail.ru

M. V Turitsyna

National Mineral Resources University (University of Mines)

Email: turitsyna_maria@mail.ru

E. V Mogil'nikov

LLC “SGC Drilling”

Email: evgeny.mogilnikov@mail.ru

References

  1. Basarygin Iu.M., Bulatov A.I., Proselkov Iu.M. Burenie neftianykh i gazovykh skvazhin [Drilling oil and gas wells]. Moscow: Nedra-Biznestsentr, 2002. 632 p.
  2. Basarygin Iu.M., Bulatov A.I., Proselkov Iu.M. Oslozhneniia i avarii pri burenii neftianykh i gazovykh skvazhin [Complications and emergencies in drilling oil and gas wells]. Moscow: Nedra, 2000. 679 p. 2002
  3. Bulatov A.I., Proselkov Iu.M., Riabchenko V.I. Tekhnologiia promyvki skvazhin [Well cleaning technology]. Moscow: Nedra, 1981. 301 p.
  4. Solov'ev V.V. Razvitie tekhnologii i tekhniki obespecheniia ustoichivosti ust'ev skvazhin v mnogoletnemerzlykh porodakh s ispol'zovaniem prirodnykh faktorov Severa [Development of technology and methods to ensure wellhead stability in permafrosts using natural factors of the North]. Thesis of the candidate of technical sciences. Ukhta, 1999. 201 p.
  5. Gasumov R.A., Kondrenko O.S., Gasumov E.R. Osnovnye dominiruiushchie faktory teplovogo vozdeistviia na merzlye porody pri burenii skvazhin v kriolitozonakh [The main dominating factors of thermal effects on frozen rock in drilling wells in cryolithic zones]. Vestnik Severo-Kavkazskogo federal'nogo universiteta, 2010, no. 2, pp. 5–12.
  6. Mil'chenko I.V. Burovye raboty na vechnomerzlykh gruntakh [Drilling operations in permanently frozen soils]. Mezhvuzovskii sbornik nauchnykh trudov Severnogo (Arkticheskogo) federal'nogo universiteta M.V. Lomonosova “Ekologicheskie problemy Arktiki i severnykh territorii”. Ed. by P.A. Feklistov. Arkhangel'sk, 2012, pp. 102–105.
  7. Polozkov K.A., Basniev K.S., Gaftuniak P.I. Oslozhneniia, voznikaiushchie pri stroitel'stve i ekspluatatsii skvazhin v zonakh rasprostraneniia mnogoletnemerzlykh porod, i meropriiatiia po ikh predotvrashcheniiu [Complications in well construction and operation in permafrost zones and preventive measures]. Stroitel'stvo neftianykh i gazovykh skvazhin na sushe i na more, 2010, no. 1, pp. 6–10.
  8. Kudriashov B.B., Iakovlev A.M. Burenie skvazhin v merzlykh porodakh [Well drilling in frozen soils]. Moscow: Nedra, 1983. 286 р.
  9. Chen C., Chen D., Feng X. Application of Mud Cooling System for Gas Hydrate Exploration in Permafrost. Наукові праці ДонНТУ. Гірничо-геологічна, 2011, no. 14(181), pp. 97–101.
  10. Gao H., Liu H. Concept Design for Drilling Fluid Cooling System [J]. Oil Field Equipment, 2007, no. 36(6), pp. 31–32.
  11. Zhao J., Sun Y., Guo W. Current Situation of Drilling Mud Cooling Technology and Research on a New Type of Drilling Mud Cooling System [J]. Exploration Project, 2010, no. 37(9), pp. 1–5.
  12. Turitsyna M.V., Chernobrovin E.V., Morozov V.A., Teleev G.Iu., Kovalev A.V., Riabokon' E.P. Gazozhidkostnye promyvochnye smesi dlia zakanchivaniia skvazhin v usloviiakh anomal'no nizkikh plastovykh davlenii [Liquid-gas mixtures for well completion under abnormally low formation pressures]. Neftianoe khoziaistvo, 2012, no. 8, pp. 111–113.
  13. Turitsyna M.V., Kovalev A.V., Morozov V.A., Teleev G.Iu., Chernobrovin E.V., Shcherbakov A.A. Gazozhidkostnye promyvochnye smesi dlia pervichnogo vskrytiia plastov v usloviiakh anomal'no nizkikh plastovykh davlenii [Liquid-gas mixtures for initial formation exposure under abnormally low formation pressures]. Neftianoe khoziaistvo, 2012, no. 9, pp. 58–59.
  14. Iakovlev A.A., Turitsyna M.V. Obosnovanie primeneniia i issledovanie sostavov gazozhidkostnykh smesei dlia promyvki skvazhin v usloviiakh anomal'no nizkikh plastovykh davlenii [Justification of application and study of liquid-gas mixture composition for well cleanout under abnormally low formation pressures]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiia. Neftegazovoe i gornoe delo, 2012, no. 4, pp. 42–48.
  15. Iakovlev A.A., Turitsyna M.V. K voprosu o primenenii novykh kompozitsii poverkhnostno-aktivnykh veshchestv dlia sozdaniia penoobrazuiushchego reagenta [On application of new combinations of surface-active substances to produce foam-forming reagents]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiia. Neftegazovoe i gornoe delo, 2012, no. 3, pp. 54–61.
  16. Turitsyna M.V. Gidrodinamicheskoe obosnovanie primeneniia gazozhidkostnykh smesei dlia vskrytiia plastov s anomal'no nizkimi plastovymi davleniiami [Hydrodynamic justification of liquid-gas mixtures application to expose formations with abnormally low pressures]. Thesis of the candidate of technical sciences. Saint Petersburg, 2014. 142 p.
  17. Melekhin A.A., Dorovskikh I.V., Deviatkova N.V., Golodnov M.N., Epikhin A.V., Kozhevnikov E.V. Modelirovanie izoliatsii pogloshchaiushchego plasta rasshiriaiushchimisia tamponazhnymi smesiami [Simulation of thief formation isolation by expanding plugging materials]. Neftianoe khoziaistvo, 2012, no. 8, pp. 114–117.
  18. Kozhevnikov E.V., Nikolaev N.I., Ozhgibesov O.A., Dvoretskas R.V. Issledovanie vliianiia sedimentatsii tamponazhnogo rastvora na svoistva poluchaemogo tsementnogo kamnia [Research of effects of grouting mortar sedimentation on properties of cement stone]. Neftianoe khoziaistvo, 2014, no. 6, pp. 23–25.
  19. Nikolaev N.I., Kozhevnikov E.V. Povyshenie kachestva krepleniia skvazhin s gorizontal'nymi uchastkami [Improving quality of cementing wells with horizontal sections]. Vestnik Permskogo natsional'nogo issledovatel'skogo politekhnicheskogo universiteta. Geologiia. Neftegazovoe i gornoe delo, 2014, no. 11, pp. 29–37.
  20. Kondrenko O.S. Burovye rastvory dlia vskrytiia plastov v usloviiakh mnogoletnemerzlykh porod [Mud fluids for formation exposure in permafrosts]. Stroitel'stvo neftianykh i gazovykh skvazhin na sushe i na more, 2009, no. 10, pp. 22–24.
  21. Liu T., Nikolaev N.I. Povyshenie effektivnosti likvidatsii geologicheskikh oslozhnenii pri burenii skvazhin na gazovye gidraty v provintsii Tsinkhai (KNR) [Improving effectiveness of geological complication elimination in drilling gas hydrate wells in Qinghai province (PRC)]. Inzhener-neftianik, 2013, no. 3, pp. 17–20.
  22. Zhang Y., Sun J., Jia Z. Research and Application for China Land Permafrost Gas Hydrate Drilling [J]. Exploration Project, 2009, no. 36(S1), pp. 22–28.
  23. Wu Q., Cheng G. Research Summarization on Natural Gas Hydrate in Permafrost Regions [J]. Advances In Earth Science, 2008, no. 23(2), pp. 111–119.
  24. Chernyshov S.E., Turbakov M.S., Krysin N.I. Osnovnye napravleniia povysheniia effektivnosti stroitel'stva bokovykh stvolov [Main direc-tions of improving effectiveness of side hole construction]. Neftianoe khoziaistvo, 2011, no. 8, pp. 98–100.
  25. Melekhin A.A., Chernyshov S.E., Turbakov M.S. Rasshiriaiushchiesia tamponazhnye sostavy dlia likvidatsii pogloshchenii pri kreplenii obsadnykh kolonn dobyvaiushchikh skvazhin [Expanding grouting mortars to eliminate adsorption during casing pipe cementing in output wells]. Neftianoe khoziaistvo, 2012, no. 3, pp. 50–52.
  26. Chernyshov S.E., Turbakov M.S., Krysin N.I. Rasshiriaiushchiisia tamponazhnyi rastvor dlia provedeniia vodoizoliatsionnykh rabot v skvazhinakh [Expanding grouting mortars for water shutoff treatment in wells]. Neftianoe khoziaistvo, 2011, no. 1, pp. 78–80.

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Copyright (c) 2014 Iakovlev A.A., Turitsyna M.V., Mogil'nikov E.V.

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