| Abstract: | In order to assess the resource potential of gas hydrate deposits in the North Slope of Alaska, 3-D seismic and well data at Milne Point were obtained from BP Exploration (Alaska), Inc. The well-log analysis has three primary purposes: (1) Estimate gas hydrate or gas saturations from the well logs; (2) predict P-wave velocity where there is no measured P-wave velocity in order to generate synthetic seismograms; and (3) edit P-wave velocities where degraded borehole conditions, such as washouts, affected the P-wave measurement significantly. Edited/predicted P-wave velocities were needed to map the gas-hydrate-bearing horizons in the complexly faulted upper part of 3-D seismic volume. The estimated gas-hydrate/gas saturations from the well logs were used to relate to seismic attributes in order to map regional distribution of gas hydrate inside the 3-D seismic grid.
The P-wave velocities were predicted using the modified Biot-Gassmann theory, herein referred to as BGTL, with gas-hydrate saturations estimated from the resistivity logs, porosity, and clay volume content. The effect of gas on velocities was modeled using the classical Biot-Gassman theory (BGT) with parameters estimated from BGTL. |
| Genre: | USGS Numbered Series |
| ProdID: | 71065 |
| Citation Author: | Lee, Myung W. |
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| Citation Edition: | Version 1.0 |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 23 p. |
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| Citation Series: | Scientific Investigations Report |
| Citation Series Code: | SIR |
| Citation Series Number: | 2005-5048 |
| Citation Search Results Text: | Well log analysis to assist the interpretation of 3-D seismic data at Milne Point, north slope of Alaska; 2005; SIR; 2005-5048; Lee, Myung W. |
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| Citation Year: | 2005 |
| Type: | citation/reference |
| Text: | Well log analysis to assist the interpretation of 3-D seismic data at Milne Point, north slope of Alaska; 2005; SIR; 2005-5048; Lee, Myung W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sir/2005/5048/ |
| Date Other: | Tue, 23 Aug 2005 00:00 -0500 |
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