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Geoinformatika 2017; 4(64) : 28-33

УДК 519.6, 550.8

FEATURES OF FOUR-PROBE INDUCTION LOGGING IN THIN-LAYERED CUTS OF THE DNIEPER-DONETS BASIN

M.L. Myrontsov

Institute of Telecommunications and Global Information Space, NAS of Ukraine, 13, Chokolivskiy boulevard, Kyiv, 03186, Ukraine, e-mail: myrontsov@ukr.net

Purpose The purpose of the article is to create and numerically implement an algorithm for solving the inverse problem of low-frequency induction logging for oil and gas in order to determine the geoelectrical parameters of thin-layered cuts of the “grouse” type; to perform experimental testing of the created algorithm in the Dnieper-Donets Basin conditions.
Design/ methodology/ approach In order to create the algorithm for solving the inverse problem, we used corrections “for the well”, “for the skin-effect” and “for the surrounding rocks”. The correction “for the surrounding rocks” was used in the numerical solution of the unstable inverse problem of induction low-frequency logging.
Findings Based on the example of the real borehole material, the study showed that the four-probe induction logging allows us to reliably study thin-layered cuts of the “grouse” type in the Dnieper-Donets Basin. At the same time, the vertical resolution of the method proves to be comparable or higher than that of the auxiliary methods, and in some cases induction logging is the only method that distinguishes productive beds.
Practical value/ implications The dismemberment of thin-layered cuts of the “grouse” type with simultaneous precise determination of the geoelectrical parameters of each interlayer will permit to increase the daily flow rate of the useful well fluid in the Dnieper-Donets Basin conditions.

Keywords: inverse problem, electrometry in wells, induction logging.

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References:

  1. Gomilko A.M., Savitsky O.A., Trofimchuk A.N. Metody superpozicii, sobstvennih funkciy I ortogonalnih mnogochlenov v granichnih zadachah uprugosti I akustiki. Kyiv: Naukova Dumk, 2016, 433 p. [in Russian].
  2. Dovgiy S.O., Yevdoschuk M.I., Korjnev M.M., Kulish Ye.O., Kurilo M.M., Malakhov I.M., Trofimchuk O.M., Yakovlev Ye.O. Energetichno-resursna skladova rozvitku Ukrainy. K.: Nika-Center, 2010, 263 p. [in Ukrainian].
  3. Yegurnova M.G, Zaikovsky M.Ya., Zavorotko Y.M., Tsoha O.G., Knishman O.Sh., Mulyr P.M., Demyanenko I.I. Naf­togazoperspektyvni ob`etky Ukrainy. Kyiv: Naukova Dumka, 2005, 196 p. [in Ukrainian].
  4. Kurganskiy V.M., Tishoev I.V. Electrichni ta elektromagnitni metodi doslidgennja sverdlovyn. Kyiv: “Kyivskiy Universitet”, 2011. 175 p. [in Ukrainian].
  5. Myrontsov M.L. Method of solving the direct and inverse problem of electric logging. Dopovidi Nacionalnoi akademii nauk Ukrainy, 2007, no. 2, pp. 128-131. [in Ukrainian].
  6. Myrontsov M.L. Method of quick solving the direct and inverse problem of induction logging. Geofizicheskiy zhurnal, 2007, no. 5, pp. 212-214 [in Ukrainian].
  7. Myrontsov N.L. Analiz vozmozhnostey sinteticheskikh zondov nizkochastotnogo induktsionnogo karotazha. NTV Karo­tagnik, 2010, no. 4, pp. 73-87 [in Russian].
  8. Myrontsov N.L. Analysis of possibilities of standard electrometric complex for solving urgent problems of wells geophysical studies. Geofizicheskiy zhurnal, 2012, no. 1, pp. 159-170 [in Russian].
  9. Myrontsov N.L. Hardware-methodical complex for the investigation of collectors with abnormally low resistance. Dopovidi Nacionalnoi akademii nauk Ukrainy, 2012, no. 1, pp. 117-122 [in Russian].
  10. Myrontsov N.L. Pulse lateral logging with high spatial resolution. Dopovidi Nacionalnoi akademii nauk Ukrainy., 2010, no. 5, pp. 120-122 [in Russian].
  11. Myrontsov N.L. Metod povyshenija effektivnosti reshenija obratnoy zadachi karotagnogo zondirivanaja kompleksom BKZ-BK-IK. Geoinformatika, 2011, no. 2, pp. 43-47 [in Russian].
  12. Myrontsov N.L. Investigation method for “wrong” formations and the relict oil content under the well logging. Dopovidi Nacionalnoi akademii nauk Ukrainy, 2012, no. 4, pp. 100-105 [in Russian].
  13. Myrontsov N.L. A new principle of multiprobe electric logging. Dopovidi Nacionalnoi akademii nauk Ukrainy, 2010, no. 6, pp. 103-106 [in Russian].
  14. Myrontsov N.L. On the method of electromagnetic-pulse logging. Dopovidi Nacionaloi akademii nauk Ukrainy, 2010, no. 7, pp. 110-112 [in Russian].
  15. Myrontsov N.L. Reshenie zadachi opredelinija deystvitelnogo verticaknogo profilja provodimosti po dannim indukcionnogo karotoga. NTV Karotagnik, 2010, no. 3, pp. 57–69 [in Russian].
  16. Myrontsov N.L. Reshenie prjamih I obratnih zadach elektricheskogo I indukcionnogo karotoga metodom integralnih (polnih) tokov. Teoretychni ta prykladni aspekty geoinformatyky. K., 2009, pp. 340–352 [in Russian].
  17. Myrontsov N.L. Method for solving 2D inverse problem of induction logging. Geofizicheskiy zhurnal, 2009, no. 4, pp. 196-203 [in Russian].
  18. Myrontsov M.L. Numerical modeling of electrometry in wells. Kyiv: Naukova Dumka, 2012, 224 p. [in Russian].
  19. Myrontsov N.L. Efficient investigation method for complex structures and anisotropic formations in clastic deposits. Dopovidi Nacionalnoi akademii nauk Ukrainy, 2012, no. 5, pp. 119-125 [in Russian].
  20. Starostenko V.I., Hovhannisian S.M. Inaccurately posed problems on Hadamard and their approximate solution by the method of regularization A.N. Tikhonov. Geofizicheskiy zhurnal, 2001, no. 6, pp. 3–20 [in Russian].
  21. Epov M.I., Antonov Yu.N. (Eds.). Technology of exploration of oil and gas wells based on VIKIZ. Methodical direction. Novosibirsk: Publishing House of SB RAN, 2000, 270 p.[in Russian].
  22. Epov M.I., Glinskih V.N. Linearizacija otnositelnih harakteristik visikochastotnogo magnitnogo polja v dvumernih pro­vodjaschih sredah. Geologija i Geofizika, 2004, no. 2, pp. 266–274 [in Russian].
  23. Epov M.I., Glinskih V.N., Uljanov V.N. Ocenka harakteristik prostranstvennogo razreshenija sisitem indukcionnogo I vysokochastotnogo karotaga v terigennih razrezah Zapadnoy Sibiri. NTV Karotagnik, 2001, no. 3, pp. 19-57 [in Russian].
  24. Anderson B.I. Modeling and inversion methods for the interpretation of resistivity logging tool response. Delft: Delft University Press, 2001, 377 p.
  25. Myrontsov N. Method for improving the spatial resolution of resistivity logging. Geofizicheskiy zhurnal, 2010, no. 4, pp. 119—121.