Takatoshi Namikawa, Masatane Kato (ERSDAC) Yoshimitsu Negishi (Mitsubishi Material Techno) Takumi Onuma (JGI Inc.) 1. Introduction 2. What is asking for multi spectral data 3. Case study in Minhe basin, China 4. Case study in Tarim basin, China 5. Summary 1. Introduction Oil, Gas = fluid Exploration oil and gas = Find or estimate traps Interests are …… much in shape of geological structure, less in spectral information. 1. Introduction Anticline Anticline Anticline 2. What is asking for multi spectral data ASTER VNIR 3 bands SWIR 6 bands TIR 5 bands If we can get …… 1. Distribution trend of good source rock 2. Distribution pattern of good reservoir it would be helpful for oil and gas exploration. 3. Case study in Minhe Basin, China 3. Case study in Minhe Basin, China Objective 1; Distribution trend of good source rock Principle; Good source = High TOC content High TOC rock ↓ dark in VNIR (Experimental) TOC: Total organic carbon (%) 3. Case study in Minhe Basin, China Poor Good Poor Result; North-western to central part is in a fair way 3. Case study in Minhe Basin, China Objective 2; Distribution pattern of good reservoir Principle; Good reservoir = High porosity sandstone = High SiO2 content Band 10, 11; positively correlated TIR Band10 TIR Band11 -0.00007075 -0.0000707 TIR Band12 TIR Band13 -0.0000708 -0.00007085 -0.0000709 0 50 100 SiO2 Content of rock samples (%) ASTER TIR Thermal logarithmic residual value ASTER TIR Thermal logarithmic residual value -0.0000707 TIR Band10 TIR Band11 -0.00007075 TIR Band12 TIR Band13 -0.0000708 y = 2E-09x - 7E-05 -0.00007085 y = 2E-09x - 7E-05 -0.0000709 0 10 20 30 Porosity of rock samples (%) 40 3. Case study in Minhe Basin, China ASTER TIR B11 DN value Result; Central part is in a fair way 3. Case study in Minhe Basin, China Focusing quality Structures in areservoir fair wayrock Focusingfrom from source quality 4. Case study in Tarim Basin, China 4. Case study in Tarim Basin, China Objective; Distribution of good source rock Upper Ordovician; Thin, but excellent source rock 4. Case study in Tarim Basin, China Kalpin Uplift; Duplicated of thrust sheets 4. Case study in Tarim Basin, China VNIR 123 SWIR 678 TIR 11 12 14 Depend on low spatial resolution, SWIR and TIR image looks like out of focus 4. Case study in Tarim Basin, China VNIR 123 Simulated Reflectance SWIR 678 Simulated Emissivity TIR 11 12 14 Devonian SiO2 rich Dolomite Limestone Give the spatial resolution of VNIR to SWIR and TIR 4. Case study in Tarim Basin, China SWIR 678 5 km SWIR 678 P1 S1 O5 O1 O3 O2 O4 4. Case study in Tarim Basin, China SWIR 678 More detail identification of lithological unit can be done in Ordovician. P1 Excellent source rock can be traced S1 O5 O1 O4 O22 O2 1 limestone shale siltstone / mudstone O5 O4 O3 O2 limestone O1 dolomite / limestone O1 O3 O2 Landsat5 TM Terra ASTER 1. Multi spectral data of ASTER has not been fully used in oil and gas industry. 2. It can contribute to basin study, in particular to get distribution trend of source rock and reservoir quality. 3. Simulated reflectance/emissivity processing is a powerful tool for ASTER data to trace thin but important bed. ERSDAC, Mitsubishi Material Techno, JGI Inc.