石油資源探査計画における衛星画像のロジスティックス的な利用方法の研究

中国・ジュンガル盆地東部の砂漠地帯の事例

抄録

This study focuses on the limitations and benefits of satellite images when scouting topographically complicated desert area for seismic planning purposes. The study area is located in the Eastern Junggar Basin of the People's Republic of China. Due to restrictions in operations and environmental considerations, the above area is still unmanageable in terms of petroleum exploration. In order to understand the general features of the desert, the sand dunes were classified into 17 units using JERS-1 OPS images, on the basis of their Type, Wavelength and Relief Energy. Furthermore, Ratio between Wavelength and Relief Energy was newly defined and mapped as an index for planning purposes. Finally the entire study area was classified into four zones according to appropriate seismic source and operational difficulties. Detailed knowledge of complex dune types obtained from image interpretation allowed generation of a base map upon which a network of seismic lines can be planned to provide a reasonable reconnaissance grid in the study area. The results showed that satellite images can provide a variety of information which is vital when planning seismic surveys in desert areas.