中苏门答腊盆地基底油气藏主控因素及勘探潜力分析

发布时间：2018-06-28 17:02

本文选题：中苏门答腊盆地 + 基底油气藏　；参考：《科学技术与工程》2017年32期

【摘要】：中苏门答腊盆地基底潜山类油气藏具有较好的勘探前景。而南苏门答腊盆地基底潜山油气藏已经取得了勘探突破,在总结中苏门答腊盆地油气地质条件和对中苏门答腊盆地基底岩性、基底断裂展布及应力分析的基础上,通过类比南苏门答腊盆地基底油气藏成藏主控因素对中苏门答腊盆地基底油气藏进行分析,认为中苏门基底油气藏主控因素主要为烃源岩、基底岩性及断裂系统。中苏门答腊盆地发育良好的湖相烃源岩,基底油气藏烃源供给充足;盆地基底岩性主要为石英岩、千枚岩及火山岩,石英岩是最利于形成裂缝型储层的基底岩性;另外,剪切应力集中区是裂缝型储层发育的有利区。根据上述分析,认为Sembilan隆起东南部及Minas高地东南部(Bengkalis坳陷西南部)不仅位于剪切应力集中区,而且位于基底石英岩发育区,是最有利的基底油气藏勘探区。
[Abstract]:The buried hill reservoirs in the basement of the Middle Sumatra Basin have a good prospect of exploration. However, a breakthrough has been made in the exploration of buried hill reservoirs in the basement of the South Sumatra Basin. On the basis of summing up the oil and gas geological conditions in the Middle Sumatra Basin and analyzing the lithology of the basement, the distribution of the basement faults and the stress analysis of the Middle Sumatra Basin, By analogy with the main factors of basement reservoir formation in South Sumatra Basin, the basement reservoirs in Middle Sumatra Basin are analyzed. It is considered that the main controlling factors of basement reservoirs in Middle Sumatra Basin are mainly hydrocarbon source rock, basement lithology and fault system. There are well developed lacustrine source rocks in the Middle Sumatra Basin, the basement hydrocarbon source is abundant, the basement lithology is mainly quartzite, phyllite and volcanic rock, the quartzite is the most favorable basement lithology for the formation of fractured reservoir, in addition, the basement lithology of the basin is mainly composed of quartzite, phyllite and volcanic rock. The shear stress concentration area is a favorable area for the development of fractured reservoirs. Based on the above analysis, it is considered that the southeastern Sembilan uplift and the southwest of the Minas highland (Bengkalis depression) are not only located in the shear stress concentration area, but also located in the basement quartzite development area, which is the most favorable exploration area for the basement oil and gas reservoirs.
【作者单位】：中海油研究总院;
【基金】：国家重大专项(2017ZX05032)资助
【分类号】：P618.13

【相似文献】