METHOD OF MINE SEISMIC SURVEY FOR STUDYING GEOLOGICAL STRUCTURE FEATURES OF VERKHNEKAMSKOYE SALT DEPOSIT

Verkhnekamskoye salt strata have complex structure. Intra-salt deformation complicates underground mining and can result in loss and dilution of potash salt. Mine seismic survey is currently widely applied within the deposit to study its geological structure and solve various geotechnical tasks. The seismic survey mainly uses the common depth point method. However, the problem of objective description of geological environment remains of concern due to specificity of generation of elastic waves in mines (wave field features and propagation patterns, source directivity). The authors have developed a method of mine seismic survey on shear waves with separation of reflections arriving from different half-spaces. This method enables detailed geological and geophysical modeling of the deposit areas. S-waves are shorter in length than P-waves, which increases the method resolution. This article proves information capacity of the developed method. The field test results of the method in mine conditions and the technique of separation of interfering reflections from different half-spaces are presented. The obtained seismic cross-sections feature high contrast ratio as well as traceability and continuity of reflections.

For citation: Zhukov A. A., Prigara A. M., Tsarev R. I., Shustkina I. Yu.Method of mine seismic survey for studying geological structure features of Verkhnekamskoye salt depositGornyy informatsionno-analiticheskiy byulleten'. 2019;4:121-136. [In Russ]. DOI: 10.25018/0236-1493-2019-04-0-121-136.

Keywords

Verkhnekamskoye salt deposit, intra-salt deformation, mine seismic survey, source directivity, shear waves, reflection separation.

Issue number: 4
Year: 2019
ISBN: 0236-1493
UDK: 550.834+622.363.2 (470.53)
DOI: 10.25018/0236-1493-2019-04-0-121-136
Authors: Zhukov A. A., Prigara A. M., Tsarev R. I., Shustkina I. Yu.

About authors: A.A. Zhukov, Head of Geophysics Section of Geology Directory, Uralkali PJSC, Moscow, Russia; Head of Laboratory, e-mail: Aleksandr.Zhukov@uralkali.com, A.M. Prigara, Candidate of Technical Sciences, Leading Researcher, e-mail: Andrey.Prigara@uralkali.com, R.I. Tsarev, Leading Engineer, e-mail: Roman.Tsarev@uralkali.com, I.Yu. Shustkina, Leading Engineer, e-mail: Irina.Shustkina@uralkali.com, VNII Galurgii JSC, 614000, Perm, Russia. Corresponding author: I.Yu. Shustkina, e-mail: Irina.Shustkina@uralkali.com.

REFERENCES:

1. Kudryashov A. I. Verkhnekamskoe mestorozhdenie soley. 2-e izd. [Verkhnekamskoye salt deposit. 2nd edition], Moscow, Izd. Epsilon Plyus. 2013.

2. Golubev B. M. Stroenie solyanoy tolshchi Verkhnekamskogo mestorozhdeniya [Structure of salt mass of Verkhnekamskoye deposit], Candidate’s thesis, Perm, PGNIU, 1972.

3. Savich A. I., Koptev V. I., Nikitin V. N., Yashchenko Z. G. Seysmoakusticheskie metody izuche-
niya massivov skal'nykh porod
 [Seismic methods of studying rock mass], Moscow, Nedra, 1969.

4. Vagin V. B. Shakhtnye seysmicheskie metody izucheniya stroeniya massivov solyanykh porod [Mine seismic methods of studying structure of saliferous rock mass], Minsk, BelNITS «Ekologiya», 2010.

5. Vagin V.B., Efimov А.М., Kulagov Е.V. Research and assessment of state of water proof formation over potash horizons with geophysical methods. Gornyy zhurnal. 2014, no 2, pp. 11—15. [In Russ].

6. Bingzong Zhou, Peter Hatherly, Troy Peters. Cola seismic surveying over near-surface basalts: Experience from Central Queensland, Australia. Geophysics, vol. 79, No 2 (March 2014); pp. B109—B122.

7. Himanshu Barthwal, Mirko van der Baan Passive seismic tomography using recorded microseismicity: Application to mining-induced seismicity. Geophysics, vol. 84, No 1 (January-February 2019), pp. B41—B57.

8. Jun Lu, Xinghun Meng, Yun Wang Prediction of coal seam details and mining safety using multicomponent seismic data. A case history from China. Geophysics, vol. 81, No 5 (September-October 2016); pp. B149—B165.

9. Stewart A. Greenhalgh, Iain M. Masonz, Cvetan Sinadinovski In-mine seismic delineation of mineralization and rock structure. Geophysics, vol. 65, No 6 (November-September 2016); pp. 1908—1919.

10. Babkin А.I. Spatial groupings of seismoacoustic monitoring under conditions of mining workings of potash mines. Gornyy informatsionno-analiticheskiy byulleten’. 2010, no 1, pp. 261—267. [In Russ].

11. Sanfirov I.А., Babkin А.I. Mining-geological applications of seismic surveys in internal medium points. Gornyy informatsionno-analiticheskiy byulleten’. 2003, no 10. [In Russ].

12. Babkin A. I. Shakhtnaya seysmoakustika po metodike mnogokratnykh perekrytiy (na primere Verkhnekamskogo mestorozhdeniya kaliynykh soley) [Mine seismoacoustics on multifold reflection surveying procedure (on the example of Verkhnekamskoye potash salt deposit)], Candidate’s thesis, Perm, Gornyy institut UrO RAN, 2001.

13. Prigara A. M. Prognoz stroeniya i svoystv gornogo massiva na osnove seysmomodelirovaniya [Forecast of rock mass structure and properties based on seismic modelling], Candidate’s thesis, Perm, Gornyy institut UrO RAN, 2003.

14. Kulagov Е.V. Features of seismic waves excited in saliferous rock mass in Starobinskoye deposit. Litasfera. 2012, no 2 (37). [In Russ].

15. Gendzwill D. J., Randy Brehm. High-resolution seismic reflections in a potash mine. Geophysics, vol. 58, No 5 (May 1993); p. 741—748.

16. Tsarev R. I., Prigara A. M., Zhukov A. A. Vozmozhnosti seysmorazvedki na poperechnykh volnakh [Возможности сейсморазведки на поперечных волнах]. Materialy konferentsii EAGE «Inzhenernaya i rudnaya geofizika». Gelendzhik, 2019.

17. Boganik G. N., Gurvich I. I. Seysmorazvedka: uchebnik dlya vuzov [Seismic survey: textbook for higher education], Tver', Izd-vo AIS, 2006.

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