地化与测井数据相结合提高产油带的辩识--来自印度Upper Assam盆地的实例研究地化與測井數據相結閤提高產油帶的辯識--來自印度Upper Assam盆地的實例研究 지화여측정수거상결합제고산유대적변식--래자인도Upper Assam분지적실례연구 Improved identification of pay zones through integration of geochemical and log data:A case study from Upper Assam basin, India