Velocity and AVO analysis for the investigation of gas hydrate along a profile in the western continental margin of India

Marine Geophysical Research

Volumn 28, Issue 3, 2007, Pages 201-211

  Dewangan, Pawan ^a   Ramprasad, T ^a  

^a NATIONAL INSTITUTE OF OCEANOGRAPHY   (India)

Author keywords

AVO analysis; BSRs; Error analysis; Gas hydrates; Tomographic velocity analysis; Velocity analysis; Wave equation datuming

Indexed keywords

ERROR ANALYSIS; GAS HYDRATES; MATHEMATICAL MODELS; TOMOGRAPHY; VELOCITY;

AMPLITUDE VERSUS OFFSET; FLUID EXPULSION MODEL; MULTI-CHANNEL SEISMICS; WAVE-EQUATION DATUMING;

SEISMIC PROSPECTING;

AVO METHOD; CONTINENTAL MARGIN; ERROR ANALYSIS; GAS HYDRATE; SEISMIC REFLECTION; SEISMIC TOMOGRAPHY; SEISMIC VELOCITY; SPATIAL DISTRIBUTION; VERTICAL DISTRIBUTION;

ASIA; EURASIA; INDIA; SOUTH ASIA;

EID: 34648820611     PISSN: 00253235     EISSN: None     Source Type: Journal    
DOI: 10.1007/s11001-007-9027-4     Document Type: Article

References (37)

1. Al-Chalabi M (1979) Velocity determination from seismic reflection data. In: Fitch AA (ed) Developments in geophysical exploration methods, vol 1. Applied Science Publishers, London, pp 1-68
2. Bangs NJB, Sawyer DS, Golovchenko X (1993) Free gas at the base of the gas hydrate zone in the vicinity of the Chile triple junction. Geology 21:905-908
3. Berryhill JR (1979) Wave equation datuming. Geophysics 44:1329-1344
4. Berryhill JR (1984) Wave equation datuming before stack (short note). Geophysics 49:2064-2067
5. Biswas SK (1987) Regional tectonic framework, structure and evolution of the western marginal basins of India. Tectonophysics 135:307-327
6. Chapman NR, Gettrust JF, Walia R, Hannay D, Spence GD, Wood TW, Hyndman RD (2002) High-resolution, deep-towed, multichannel seismic survey of deep-sea gas hydrates off western Canada. Geophysics 67:1038-1047
7. Dix CH (1955) Seismic velocities from surface measurements. Geophysics 20:68-86
8. Doherty SM, Claerbout JF (1976) Structure independent velocity estimation. Geophysics 41:850-881
9. Hamilton EL (1971) Prediction of in-situ acoustic and elastic properties of marine sediments. Geophysics 36:266-284
10. Haznal Z, Sereda IT (1981) Maximum uncertainty of interval velocity estimates. Geophysics 46:1543-1547
11. Holbrook WS, Hoskins H, Wood WT, Stephen RA, Lizarralde D, Leg 164 Science Party (1996) Methane hydrate and free gas on the blake ridge from vertical seismic profiling. Science 273:1840-1843
12. Hyndmann RD, Spence GD (1992) A seismic study of methane hydrate marine bottom simulating reflectors. J Geophys Res 97:6683-6698
13. Jaiswal P, Zelt CA, Pecher IA (2006) Seismic characterization of a gas hydrate system in the Gulf of Mexico using wide-aperture data. Geophys J Int 165:108-120
14. Karisiddaiah S, Veerayya M (1994) Methane bearing sediments in the eastern Arabian Sea: A probable source of greenhouse gas. Cont Shelf Res 14:1361-1370
15. Karisiddaiah S, Veerayya M (1996) Potential distribution of subsurface methane in the sediments of the eastern Arabian Sea and its possible implications. J Geophys Res 101:25887-25895
16. Kvenvolden KA (1988) Methane hydrate - a major reservoir of carbon in the shallow geosphere? Chem Geol 71:41-51
17. Lu S, McMechan GA (2002) Estimation of gas hydrate and free gas saturation, concentration, and distribution from seismic data. Geophysics 67:582-593
18. MacKay ME, Jarrard RD, Westbrook GK, Hyndman RD, Shipboard Scientific Party of ODP Leg 146 (1994) Origin of bottom-simulating reflector; Geophysical evidences from the Cascadia accretionary prism. Geology 22:459-462
19. Markl RG, Bryan GM, Ewing JI (1970) Structure of the Blake-Bahama outer ridge. J Geophys Res 75:4539-4555
20. Mackenzie KV (1981) Nine-term equation for sound speed in the oceans. J Acoust Soc Am 70:807-812
21. McKenzie DP, Sclater J (1971) The evolution of Indian Ocean since the late Cretaceous. Geophys J R Astron Soc 25:437-528
22. Neidell NS, Taner MT (1971) Semblance and other coherency measures for multichannel data. Geophysics 36:498-509
23. Rao YH, Subrahmanyam C, Rastogi A, Deka B (2001) Anomalous seismic reflections related to gas/gas hydrate occurrences along the western continental margin of India. Geo-Marine Lett 21:1-8
24. Satyavani N, Shankar U, Thakur NK, Reddi SI (2002) Probable gas hydrate/ free gas model over western continental margin of India. Mar Geophys Res 23:423-430
25. Shankar U, Sinha B, Thakur NK, Khanna R (2005) Amplitude-versus-offset modeling of the bottom simulating reflection associated with submarine gas hydrates. Mar Geophys Res 26:29-35
26. Sheriff RE, Geldart LE (1982) Exploration seismology vol 1, history, theory, data acquisition. Cambridge University Press, New York
27. Shipley TH, Houston MH, Buffler RT, Shaub FJ, McMillen KJ, Ladd JW, Worzel JL (1979) Seismic evidence for widespread possible gas hydrate horizons on continental slopes and rises. Am Assoc Petrol Geol Bull 63:2204-2213
28. Singh SC, Minshull TA, Spence GD (1993) Velocity structure of a gas hydrate reflector. Science 260:204-207
29. Sloan ED (1998) Clathrate hydrates of natural gases. Marcel Dekker Inc, New York
30. Stork C (1991) Reflection tomography in the post migrated domain. Geophysics 57:680-692
31. Subrahmanyam V, Ramana MV, Gopala Rao D (1993) Reactivation of Precambrian faults on the southwestern continental margin of India: evidence from gravity anomalies. Tectonophysics 219:327-339
32. Taner MT, Koehler F (1981) Surface consistent corrections. Geophysics 46:17-22
33. Veerayya M, Karisiddaiah SM, Vora KH, Wagle BG, Almeida F (1998) Detection of gas charged sediments and gas hydrate horizons along the western continental margin of India. In: Henriet JP, Mienert J (eds) Gas hydrates: Relevance to world margin stability and climate change. Geol Soc London Spec Publ 137:239-253
34. Yuan T, Hyndman RD, Spence GD, Desmons B (1996) Seismic velocity increase and deep-sea gas hydrate concentration above a bottom-simulating reflector on the northern Cascadia continental slope. J Geophys Res 101:13655-13671
35. Zelt CA (1999) Modeling strategies and model assessment for wide-angle seismic traveltime data. Geophys J Int 139:183-204
36. Zelt CA, Smith RB (1992) Seismic traveltime inversion for 2-D crustal velocity structure. Geophys J Int 108:16-34
37. Zoeppritz K (1919) On the reflection and propagation of seismic waves. Gottinger Nachrichten 1:66-84