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塔里木盆地英吉苏凹陷中生界发育有煤系生油岩,其丰度指标与邻区已出油的的库车坳陷、吐哈、焉耆盆地有良好可比性。碳质泥岩和煤岩中有丰富-较丰富的基质镜质体、树脂体等富氢生烃组分发育。推测侏罗系还有一定范围的开阔水体有机相存在,具备良好的生烃基础。凹陷热演化与吐哈盆地台参 1井十分相似,预计在 4 000 m以下烃源岩已大量成熟,钻井揭示凹陷内中生界有过大规模的油气运移过程,碳同位素分析表明这些油气来自于中生界三叠、侏罗系煤系地层。另外,凹陷的构造格局与吐鲁番、库车坳陷具相似处,且发育多套生、储、盖组合,各成藏要素在时间上具良好匹配关系;在空间上,英东深洼槽区周边的构造高带是下步勘探的最有利和最现实的区域。但由于中生界的厚度较小,凹陷的油气勘探也具一定的风险性。
There is a coal-bearing source rock in the Mesozoic in the Yingjisu Sag, Tarim Basin. Its abundance index is in good agreement with that of the Kuqa Depression, Tuha and Yanqi Basin in the neighboring areas. Carbonaceous mudstone and coal rock is rich in - more abundant matrix vitrinite, resin body and other hydrogen-rich hydrocarbon generation components. It is speculated that Jurassic still has a certain range of open water organic phase, which has a good foundation for hydrocarbon generation. The thermal evolution of the depression is very similar to that of the T’GP-1 well in the Turpan-Hami basin. It is estimated that the source rocks have largely matured below 4 000 m, drilling has revealed the large-scale hydrocarbon migration in the Mesozoic in the depression, and carbon isotope analysis shows that these hydrocarbons From the Mesozoic Triassic, Jurassic coal measures strata. In addition, the structural pattern of the depression is similar to that of Turpan and Kuqa Depression, and multiple sets of reservoir, reservoir and cap assemblages are developed. The compositional factors of each reservoir have a good match in time. In space, The surrounding tectonic belt is the most favorable and realistic area for next exploration. However, due to the small thickness of the Mesozoic, depression of oil and gas exploration also has a certain risk.