准噶尔盆地西北缘红山嘴油砂特征

OIL SANDS CHARACTERISTICS OF HONGSHANZUI AREA IN NORTHWEST EDGE OF THE JUNGGAR BASIN

准噶尔盆地西北缘红山嘴油砂特征研究对于指导该区油砂的进一步勘探开发有着重要的意义。为此,采用物理和地球化学实验的方法,研究了准噶尔盆地西北缘红山嘴地区油砂的物理特征和油砂含油率特征,初步计算出了该区油砂油的地质资源量:通过含油率法得出该区0～50m埋深范围内的油砂储量为3200×104t,50～100m埋深范围内的油砂储量为2700×104t;然后采用生物标志物的方法探讨了该区油砂油的生物降解程度。结果认为:该区油砂油降解程度普遍很高,基本都在8级以上。

The research works on the oil sands resources characteristics of Hongshanzui area in northwest edge of the Junggar basin has great significance for further exploration in this area. Therefore,the paper studied the physical characteristics and oil content features of the oil sand resources in the area by using the geographical method and the experimental geochemical method. The geological resources amounts of oil from oil sand in the area were calculated by the oil content method,the amount is 32 million tons in buried depth of 0 to 50 meters and 27 million tons in buried depth of 50 to 100 meters. It then discussed the biodegradation of oil from oil sand in the area by the biomarker method. The results show that the biodegradation level of oil from oil sand in the area is as high as basically above grade 8.