| Popis: |
A two-dimensional high-resolution seismic survey was conducted in 2001 for exploration of methane hydrate in the eastern part of Nankai Trough area, Japan. Interval of each seismic survey line was approximately 5 km, and total survey length was 2,800 km. Tuned air gun array was used as an energy source, and two types of field data were acquired through whole survey lines using two streamer cables towed with water depths of 3 m and 6 m. Combination of these types of seismic data including deeptow seismics with well log data to be obtained in 2004 is expected as an effective geophysical indicator for exploration of methane hydrate and free gas in this area. |
