APPLICATION OF AERILAL HYPERSPECTRAL TECHNOLOGY IN GEOLOGICAL SURVEY FOR OIL AND GAS IN THE EAST JUNGGAR AREA,CHINA

The hydrocarbon leakage associated with the subsurface oil and gas reservoirs (fields) usually cause changes in the physical and chemical properties of the near surface materials and spectral reflectance anomalies. The spectral reflectance anomalies are shown by the position offset and intensity change of spectral absorption valley or reflection peak. Aerial hyperspectral images also display gray and color changes, which makes hydrocarbon microleakage detectable by aerilal hyperspectral technology. Therefore, the aerial hyperspectral technology also becomes an effective method for oil and gas survey and search.

This aerial hyperspectral technology has been applied to Zhundong area (2500 km²). The collection of the aerial hyperspectral remote sensing data in the CASI/SASI/TASI area can provide the information of clay, carbonate, ferrous iron et al., which is related to hydrocarbon. Such information can be used to compare with the hyperspectral anomalies about the existed oil and gas reservoirs (fields) and finally help to find two oil and gas favorable areas: Liushuhe and Santaizhen. Compared to the conventional exploration methods, such as gravity, magnetic and electricity, 2D seismic, prospecting wells etc., the aerial hyperspectral oil and gas detection technology has the advantages of low cost and high efficiency.

However, many factors can affect hydrocarbon, rocks, minerals and etc., and caused hyperspectral information anomalies. In addition, the application of the aerial hyperspectral technology for oil and gas strategy selection is still relatively rare. Therefore, the aerial hyperspectral oil and gas detection technology still needs improvement.