关于塔里木台盆区志留系油气勘探的几点思考——以塔中地区为例

对塔里木盆地塔中地区存在“志留系巨型古油藏”的看法提出质疑。认为塔里木台盆区广为分布的志留系沥青砂岩中的沥青更可能是油气运移的标志．是油气运移阶段呈分散状态的烃类在长期地层水水洗作用下的产拘．即巨型”塔中志留系古油藏”可能并未形成。对于塔中地区今后志留系的勘探方向．提出在沥青砂岩兮布区寻找再充注型油气藏和跳出沥青砂岩分布区向着油源方向寻找原生油气藏。对今后的研究工作提出了建议。特别是对改善复杂分油气糸统的研究提出了具体构想。参7

Some Considerations on the Silurian petroleum exploration in the Tarim Basin-Taking Tazhong region as an example

Some queries on the ideas that a giant paleo-oil pool developed within the Silurian of Tazhong region, Tarim Basin, are presented. The widely distributed tar sands in the Tarim Basin could be the sign of oil and gas migration and is produced by the formation watering on the disperse hydrocarbon during the migration, which means the "giant Silurian paleo-oil pool" had never be developed yet. A new suggestion on the direction of Silurian petroleum exploration in the Tazhong region is proposed for search the refilled oil and gas pools in the tar sands distributed areas and then leap over these areas to seek the primary oil and gas pools towards the oil source direction. The proposals on the future research work especially the concrete conception for improving the research on the complicated petroleum system are also presented.