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Preliminary Results of a Satellite Image Frequency-Resonance Processing of the Gas Hydrate Location Area in the South China Sea

  • S. Levashov
  • N. Yakymchuk
  • I. KorchaginEmail author
  • D. Bozhezha
Conference paper
Part of the Springer Proceedings in Earth and Environmental Sciences book series (SPEES)

Abstract

The experimental studies with the frequency-resonance method of satellite images processing using were carried out on a local site in the South China Sea, studied by a 3D seismic survey and drilling, where gas hydrates were successfully extracted by Chinese oilmen. In the area of the drilled wells that opened the gas hydrates, the resonant frequencies of the gas hydrates were refined, with which further investigation was conducted. At the specified resonant frequency, two anomalous zones “Gas-hydrate-1” and “Gas-hydrate-2” were detected and mapped on the entire image area. These anomalies are located within the BSR zones, identified by 3D seismic data, and are significantly smaller in area. At resonance frequencies of gas, four anomalous zones of the “gas reservoir” type have been mapped over the entire area of the image: Gas-1, Gas-2, Gas-3 and Gas-4. Within all these anomalies the reservoir pressure intervals were estimated: (1) 19.8–21.0 MPa; (2) 21.0–21.5 MPa; (3) 21.0–21.5 MPa; (4) 21.2–21.5 MPa. In the contours of “Gas-hydrate-1” and “Gas-hydrate-2” anomalies, anomalous responses at the resonance frequencies of gas were not fixed. It can be concluded that there are no sub-hydrate deposits of gas here. Within the surveyed area, anomalous zones at resonant frequencies of oil were not detected. In the Gas-2 anomaly contour a channel for deep fluids vertical migration was revealed and localized—a small local area with very high reservoir pressure values of 67 MPa. There are good reasons to state that the obtained results are a significant addition to the data of earlier studies on this local site.

References

  1. Krayushkin V.A. (1986) Mestorozhdenija nefti i gaza glubinnogo genezisa. Zhurnal Vsesoyuznogo khimicheskogo obshchestva im. D.I. Mendeleeva, vol. 31, no. 5, pp. 581–586 (in Russian)Google Scholar
  2. Kutcherov, V. G., and V. A. Krayushkin (2010), Deep-seated abiogenic origin of petroleum: From geological assessment to physical theory, Rev. Geophys., 48, RG1001,  https://doi.org/10.1029/2008rg000270. http://onlinelibrary.wiley.com/doi/10.1029/2008RG000270/pdf
  3. Levashov S.P., Yakymchuk N.A., Korchagin I.N. (2010) New possibilities of the oil-and-gas prospects operative estimation of exploratory areas, difficult of access and remote territories, license blocks. Geoinformatics, 3, 22–43. (in Russian)Google Scholar
  4. Levashov S.P., Yakymchuk N.A., Korchagin I.N. (2011) Assessment of relative value of the reservoir pressure of fluids: results of the experiments and prospects of practical applications. Geoinformatics, 2, 19–35. (in Russian)Google Scholar
  5. Levashov S.P., Yakymchuk N.A., Korchagin I.N. (2012) Frequency-resonance principle, mobile geoelectric technology: a new paradigm of Geophysical Investigation. Geophysical Journal, 34, 4, 167–176. (in Russian)Google Scholar
  6. Levashov S.P., Yakymchuk N.A., Korchagin I.N., Bozhezha D.N., Prylukov V.V. (2016) Mobile direct–prospecting technology: facts of the channels detection and localization of the fluids vertical migration - additional evidence for deep hydrocarbon synthesis. Geoinformatics, 2, 5–23 (in Russian)Google Scholar
  7. Levashov, S.P., Yakymchuk, N.A., Korchagin, I.N. and Bozhezha, D.N., (2017a), Application of mobile and direct-prospecting technology of remote sensing data frequency-resonance processing for the vertical channels of deep fluids migration detection. NCGT Journal, v. 5, no. 1, March 2017, p. 48–91. www.ncgt.org
  8. Levashov Sergey, Yakymchuk Nikolay, and Korchagin Ignat. (2017b), On the Possibility of Using Mobile and Direct -Prospecting Geophysical Technologies to Assess the Prospects of Oil -Gas Content in Deep Horizons. Oil and Gas Exploration: Methods and Application. Said Gaci and Olga Hachay Editors. April 2017, American Geophysical Union. p. 209–236.Google Scholar
  9. On the eve of an energy revolution: China was able to produce “combustible ice” (Ha пopoгe энepгeтичecкoй peвoлюции: Китaй cмoг дoбыть « гopючий лeд ») [in Russian]. http://toomth.livejournal.com/6016584.html
  10. Soloviev V.D., Levashov S.P., Yakymchuk N.A., Korchagin I.N., Bozhezha D.N. (2017) The experience of integrated mobile technologies used for deep hydrocarbon accumulation prospecting and geophysical mapping at the Western Antarctic bottom structures. Geophysical Journal, 39, 1, 123–143. (in Russian)Google Scholar
  11. Su M., Yang R., Wang H., Sha Z., Liang J., Wu N., Qiao S., Cong X. (2016) Gas hydrates distribution in the Shenhu area, northern South China Sea: comparisons between the eight drilling sites with gashydrate petroleum system. Geologica Acta, Vol. 14, Nº 2, June 2016, 79–100.  https://doi.org/10.1344/geologicaacta2016.14.2.1
  12. Wu, N.; Yang, S.; Zhang, H.; Liang, J.; Wang, H.; Su, X; Fu, S. (2008) Preliminary discussion on gas hydrate reservoir system of Shenhu Area, North Slope of South China Sea. In Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, Canada, 6–10 July 2008.Google Scholar
  13. Yakymchuk, N. A., Levashov, S. P., Korchagin, I. N., & Bozhezha, D. N. (2015, March 23). Mobile Technology of Frequency-Resonance Processing and Interpretation of Remote Sensing Data: The Results of Application in Different Region of Barents Sea. Offshore Technology Conference.  https://doi.org/10.4043/25578-ms. https://www.onepetro.org/conference-paper/OTC-25578-MS
  14. Zheng Su, Yuncheng Cao, Nengyou Wu and Yong He (2011) Numerical Analysis on Gas Production Efficiency from Hydrate Deposits by Thermal Stimulation: Application to the Shenhu Area, South China Sea. Energies 2011, 4, 294–313;  https://doi.org/10.3390/en4020294CrossRefGoogle Scholar
  15. Zou Caineng, Zhang Guosheng, Yang Zhi, Tao Shizhen, Hou Lianhua, Zhu Rukai, Yuan Xuanjun, Ran Qiquan, Li Denghua, Wang Zhiping. (2013) Concepts, characteristics, potential and technology of unconventional hydrocarbons: On unconventional petroleum geology. PETROL. EXPLOR. DEVELOP., 2013, 40(4): 413–428. http://www.sciencedirect.com/science/article/pii/S1876380413600531

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • S. Levashov
    • 1
  • N. Yakymchuk
    • 1
  • I. Korchagin
    • 2
    Email author
  • D. Bozhezha
    • 1
  1. 1.Institute of Applied Problems of Ecology, Geophysics and GeochemistryKievUkraine
  2. 2.Institute of Geophysics, NAS UkraineKievUkraine

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