Results indicate that: oil and gas in Donghetang formation have the same sources; the components of light oil in the southern are different to the northern; the heavy oil either the asphalt with the light oil are formed in the different time; the northern
Results indicate that: oil and gas in Donghetang formation have the same sources; the components of light oil in the southern are different to the northern; the heavy oil either the asphalt with the light oil are formed in the different time; the northern
结果表明：东河塘组油气具有同源性；轻质油成份南北有所差异，重油或沥青与轻质油分属不同期的产物；北部井多分布重质油和沥青，向南减少，轻质油增加，北部和中北部井多出现水驱特征。