英台断陷深层资源潜力评价及有利区预测

发布时间：2018-06-15 20:40

  本文选题：英台断陷 + 烃源岩定性评价　； 参考：《东北石油大学》2015年硕士论文

【摘要】：英台断陷深层天然气勘探自2007年获得突破后,已成为松辽盆地南部深层天然气勘探的重点区块之一,现已部署4口探井并成功获得工业气流。所以,研究好深层源岩的生烃能力,计算资源量,对未来的天然气勘探起到重要作用。本次研究对英台断陷深层的三套烃源岩开展定性与定量评价,并进行气源对比,有望对英台断陷深层天然气勘探的下一步工作起到一定的指导作用。烃源岩定性评价表明英台断陷深层登娄库组源岩主要为中等—好源岩,少部分为很好源岩,干酪根类型以Ⅱ2型为主；营城组源岩主要为好—很好源岩,干酪根类型以Ⅱ1型为主；沙河子组源岩主要为中等—好源岩,干酪根类型基本以Ⅱ1-Ⅱ2型为主,通过测井地化进行TOC丰度计算并刻画登娄库、营城组和沙河子组TOC等值线图。三套源岩均处于高成熟和过成熟阶段,生油高峰在1900m,生气高峰在2100m～2900m之间。烃源岩定量评价表明,英台断陷登娄库组登娄库组总生气量为4980亿方,按照运聚系数1%～5%计算,其资源量为49.8～249亿方；营城组总生气量85288亿方,按运聚系数1%～5%计算,资源量为852.88～4264.4亿方；沙河子组总生气量27546亿方,按照1%～5%的运聚系数,其资源量为275.46～1377.3亿方。气源对比显示登娄库组和营城组源岩的天然气主要供给自身碎屑岩储层,沙河子组源岩的天然气主要供给营一段火山岩储层。登娄库的有利区位于北部源岩生烃强度高值区,营城组有利区基本全区分布,沙河子组有利区位于中部和北部生烃强度高值区与营一段火山岩储层叠合的区域。
[Abstract]:Since the breakthrough of natural gas exploration in Yingtai fault depression in 2007, it has become one of the key blocks of deep gas exploration in the south of Songliao Basin. Four exploration wells have been deployed and industrial airflow has been successfully obtained. Therefore, the study of hydrocarbon generation capacity of deep source rock and calculation of resource quantity will play an important role in natural gas exploration in the future. The qualitative and quantitative evaluation of the three sets of hydrocarbon source rocks in the deep layer of Yingtai fault depression and the comparison of gas sources are expected to play a guiding role in the next step of natural gas exploration in the deep layer of Yingtai fault depression. The qualitative evaluation of source rocks shows that the source rocks of the deep Dengloku formation in Yingtai fault depression are mainly medium-good source rocks, a few are good source rocks, the kerogen type is mainly type 鈪，

本文编号：2023564