| Title | Initial geophysical and geological assessment of an industry 3-D seismic survey covering the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well |
| Download | Download (whole publication) |
| Author | Brent, T A; Riedel, M; Caddel, M; Clement, M; Collett, T S; Dallimore, S R |
| Source | Scientific Results from the Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada; by Dallimore, S R (ed.); Collett, T S (ed.); Geological Survey of
Canada, Bulletin no. 585, 2005, 14 pages (1 sheet); 1 CD-ROM, https://doi.org/10.4095/220886 |
| Year | 2005 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | CD-ROM |
| Related | This publication is contained in Dallimore, S R; Collett, T
S; (2005). Scientific Results from the Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada, Geological Survey of Canada, Bulletin no. 585 |
| Province | Northwest Territories |
| NTS | 107C/06NW |
| Area | Mackenzie Delta; Beaufort Sea |
| Lat/Long WENS | -134.7500 -134.5000 69.5000 69.4167 |
| Subjects | fossil fuels; geophysics; structural geology; hydrocarbons; gas; hydrocarbon gases; hydrate; methane; methane hydrate; petroleum resources; biogenic gas; reserve estimation; geophysical surveys; seismic
surveys; structural features; faults; anticlines; biostratigraphy; permafrost; seismic velocities; Mallik 5L-38; Mallik J-37; Mallik P-59; Mallik A-06; methanogens; Tertiary; Cenozoic |
| Illustrations | tables; seismic profiles; sketch maps; gamma ray logs; stratigraphic sections |
| |
| Program | Mallik 2002 Gas Hydrate Production
Research Well Program |
| Released | 2005 08 25 |
| Abstract | An industry 3-D seismic survey covers the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate well. Interpretation supported by biostratigraphy indicates a normally faulted anticline with Mallik 5L-38
occupying the northern downthrown crest. This east-striking fault, near Mallik 5L-38, has 800 m throw interpreted 700 m below gas-hydrate-bearing levels. Fault offset at Mallik 5L-38 gas-hydrate-bearing
levels is probably several hundred metres
less, because syndepositional fault movement during or after the Late Eocene is suggested. Downhole velocity surveys at Imperial Oil Mallik P-59, J-37, and A-06 wells infer 105 m, 225 m, and 135 m gas hydrate, respectively, compared to 116 m known at
the Mallik 5L-38 well. Gas hydrate seismic characterization includes: multiple, generally weak, near-horizontal events; amplitude features on geological reflectors; amplitude 'blanking'; and chaotic, vertical reflective zones surrounding faults.
Recognized data contamination features include amplitude-frequency degradation beneath lakes and reverberated energy. There is a spatial correspondence of some subsurface faults with position and orientation of surface lakes, suggesting a possible
genetic link. |
| GEOSCAN ID | 220886 |
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