1887
  1. Home
  2. Conferences
  3. Conference Proceedings
  4. Geomodel 2017
  5. Conference paper
PDF

Abstract

Summary

The main seismic indication that points to presence of gas hydrates in the sedimentary section is a seismic reflector that roughly follows seafloor topography and crosscuts the reflections from lithologic boundaries and is known as “bottom simulation reflection” (BSR). To identify BSR in a seismic section where it is subparallel to lithologic boundaries, it is suggested to use velocity analysis that involves velocity spectrum computation and AVO analysis. It was determined that gas hydrate layer is recorded as a period of higher interval velocity values relatively to the overlying water layer and underlying sedimentary deposits. In the AVO results the BSR boundary shows itself as high wave dynamics with phase inversion (intercept attribute (I)), intensive positive anomaly (gradient attribute (G)) and negative anomaly (fluid factor attribute (FF)). The same attributes were also used to detect abrupt change in the gas hydrate structure at the points of contact with vertical gas fluid emission (gas column). It is noted that BSR completely disappears where gas hydrate crosses gas column, while intrusion of gas column into the gas hydrate layer results in appearance of complicated structures that are interpreted as mud volcanoes. The data provided in the article cannot be derived from regular interpretation of seismic sections but from AVO analysis only.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201702297
2017-09-11
2024-04-26

  • From This Site

    /content/papers/10.3997/2214-4609.201702297
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

/deliver/fulltext/2214-4609/2017/43908.html?itemId=/content/papers/10.3997/2214-4609.201702297&mimeType=html&fmt=ahah

References

  1. Бочарова, А.А.
    Разработка методики картирования зон распространения газовых гидратов на основе спектрального анализа морских сейсмических данных: автореф. дисс. канд. физ.-мат. наук / А.А.Бочарова. – М.: МГУ им. М.В. Ломоносова, 2013. – 25 с.
     [Google Scholar]
  2. Гинсбург, Г.Д., Соловьев, В.А.Субмаринные газовые гидраты / Г.Д. Гинсбург, В.А. Соловьев - СПб: ВНИИ Океангеология, 1994. – 193 с.
     [Google Scholar]
  3. Макагон, Ю.Ф.Природные газовые гидраты: распространение, модели образования, ресурсы / Ю.Ф.Макагон // Российский химический журнал. 2003. Т. 47. № 3. С. 70–79.
     [Google Scholar]
  4. Полетаева, Е.В.
    Результаты изучения региональных глубинных разломов Южного Каспия по комплексу сейсмических данных / Е.В.Полетаева // Geophysics «News in Azerbaijan». 2008. № 2. С. 25–27.
     [Google Scholar]
  5. Хаттон, Л., Уэрдингтон, М., Мейкин, Дж.
    Обработка сейсмических данных / Л.Хаттон, М.Уэрдингтон, Дж.Мейкин. – М.: Мир, 1989. – 216 с.
     [Google Scholar]
  6. AmpilovYu.P.
    From seismic interpretation to modelling and Assesment of oil and Gas fields./ Yu.P.Ampilov. – EUROPEAN ASSOCIATION GEOSCIENTISTS & ENGINEERS. EAGE Publications bv, 2010, 1–274
     [Google Scholar]
  7. AmpilovYu.P. BaturinD.G.
    Latest marine geophysical technologies for comprehensive study of natural hydrocarbon reservoirs and monitoring /Yu.P.Ampilov, D.G.Baturin. – Society of Petroleum Engineers – SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition 2012, 2056–2063
     [Google Scholar]
  8. Diaconescu, C.C., Kieckhefer, R.M., Knapp, J.H.
    Geophysical Evidence for Gas Hydrates in the Deep Water of the South Caspian Basin, Azerbaijan / C.C.Diaconescu, R.M.Kieckhefer, J.H.Knapp // Marine and Petroleum Geology. 2001. № 18. P. 209–221.
     [Google Scholar]
  9. Sain, K., Gupta, H.
    Gas Hydrates in India: Potential and Development / K.Sain, H.Gupta // Gondwana Research. 2012. Vol. 22. Issue 2. № 9. P. 645–657.
     [Google Scholar]
  10. Frye, M., Shedd, W., Boswell, R.
    Gas Hydrate Resource Potential in the Terrebonne Basin, Northern Gulf of Mexico / M.Frye, W.Shedd, R.Boswell // Marine and Petroleum Geology. 2012. № 6. P. 150–168.
     [Google Scholar]
  11. Thakur, N., Rajput, S.Exploration of Gas Hydrates. Geophysical Techniques / N.Thakur, S.Rajput. – Berlin-Heidelberg: Springer-Verlag, 2011.
     [Google Scholar]
  12. Bangs, N., Hornbach, M., Berndt, C.
    The Mechanics of Intermittent Methane Venting at South Hydrate Ridge Inferred From 4D Seismic Surveying / N.Bangs, M.Hornbach, C.Berndt // Earth and Planetary Science Letters. 2011. Vol. 310. P. 105–112.
     [Google Scholar]
  13. Sloan, E.D., Koh, A.C.
    Clathrate Hydrates of Natural Gases / E.D.Sloan, A.C.Koh. – New York: CRC Press, 2007. – 752 p.
     [Google Scholar]
  14. Chow, J.,. Lee, J. S., Sun, R., Liu, C. S., Lundberg, N.
    Characteristics of the bottom simulating reflectors near mud diapirs: offshore southwestern Taiwan.// Geo-Marine Letters. 2000. 20: Р 3–9.
     [Google Scholar]
  15. Bocharova, A.A.
    Development of method for mapping zones of gas hydrates spreading on the basis of spectral analysis of marine seismic data: author’s abstract of Cand. Sci. (Physics and Mathematics) dissertation / A.A.Bocharova. — M: Lomonosov Moscow State University, 2013. — 25 p.
     [Google Scholar]
  16. Ginsburg, G.D., Soloviev, V.A.
    Submarine gas hydrates / G.D.Ginsburg, V.A.Soloviev — SPb: VNIIOkeangeologia, 1994. — 193 p.
     [Google Scholar]
  17. Makogon, Yu. F.
    Natural gas hydrates: spreading, generation models, resources / Yu. F.Makogon // Russian Chemical Bulletin. 2003. V. 47. No. 3. P. 70–79.
     [Google Scholar]
  18. Poletaeva, E. V.
    Findings of studies of deep faults in South Caspian Sea on the basis of seismic data. / E.V.Poletaeva // Geophysics “News in Azerbaijan”. 2008. No. 2. P. 25–27.
     [Google Scholar]
  19. Hatton, L., Worthington, M., Makin, J.
    Seismic data processing / L.Hatton, M.Worthington, J.Makin. — M.: Mir, 1989. — 216 p.
     [Google Scholar]
  20. AmpilovYu.P.
    From seismic interpretation to modelling and Assesment of oil and Gas fields./ Yu.P.Ampilov. — EUROPEAN ASSOCIATION GEOSCIENTISTS & ENGINEERS. EAGE Publications bv, 2010, 1–274
     [Google Scholar]
  21. AmpilovYu.P. BaturinD.G.
    Latest marine geophysical technologies for comprehensive study of natural hydrocarbon reservoirs and monitoring /Yu.P.Ampilov, D.G.Baturin. — Society of Petroleum Engineers - SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition 2012, 2056–2063
     [Google Scholar]
  22. Diaconescu, C.C., Kieckhefer, R.M., Knapp, J.H.
    Geophysical Evidence for Gas Hydrates in the Deep Water of the South Caspian Basin, Azerbaijan / C.C.Diaconescu, R.M.Kieckhefer, J.H.Knapp // Marine and Petroleum Geology. 2001. № 18. P. 209–221.
     [Google Scholar]
  23. Sain, K., Gupta, H.
    Gas Hydrates in India: Potential and Development / K.Sain, H.Gupta // Gondwana Research. 2012. Vol. 22. Issue 2. № 9. P. 645–657.
     [Google Scholar]
  24. Frye, M., Shedd, W., Boswell, R.
    Gas Hydrate Resource Potential in the Terrebonne Basin, Northern Gulf of Mexico / M.Frye, W.Shedd, R.Boswell // Marine and Petroleum Geology. 2012. № 6. P. 150–168.
     [Google Scholar]
  25. Thakur, N., Rajput, S.
    Exploration of Gas Hydrates. Geophysical Techniques / N.Thakur, S.Rajput. — Berlin-Heidelberg: Springer-Verlag, 2011.
     [Google Scholar]
  26. Bangs, N., Hornbach, M., Berndt, C.
    The Mechanics of Intermittent Methane Venting at South Hydrate Ridge Inferred From 4D Seismic Surveying / N.Bangs, M.Hornbach, C.Berndt // Earth and Planetary Science Letters. 2011. Vol. 310. P. 105–112.
     [Google Scholar]
  27. Sloan, E.D., Koh, A.C.
    Clathrate Hydrates of Natural Gases / E.D.Sloan, A.C.Koh. — New York: CRC Press, 2007. — 752 p.
     [Google Scholar]
  28. ChowJ.,. LeeJ. S, SunR., LiuC. S., LundbergN.
    Characteristics of the bottom simulating reflectors near mud diapirs: offshore southwestern Taiwan.// Geo-Marine Letters. 2000. 20: P 3–9.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201702297
Loading
Study of Gas Hydrates in the Bering Sea Using Velocity and AVO-Analyses
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201702297
/content/papers/10.3997/2214-4609.201702297
/content/papers/10.3997/2214-4609.201702297
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error