修武盆地构造热演化史对下寒武统页岩含气性的影响

发布时间：2018-06-03 21:14

本文选题：修武盆地 + 构造热演化史　；参考：《科学技术与工程》2016年34期

【摘要】：构造热演化史可以确定泥页岩在不同地质时期的成熟度状态及构造演化特征,对页岩含气性研究和资源评价都具有重要意义。综合运用包裹体测温法、构造热演化法以及盆地模拟软件Petromod对修武盆地的热演化史和埋藏史进行研究和重建。修武盆地JY1井的剥蚀厚度计算结果为4 142.75 m;自晚古生代以来热流值经历了低—高—低的变化过程;王音铺-观音堂组页岩在早志留世(434 Ma)进入生烃门限,早志留世-中志留世(434~422 Ma)为生油阶段,晚志留世-早二叠世(422~265 Ma)为生湿气阶段,早二叠世-晚侏罗世(265~145 Ma)为生干气阶段;王音铺组-观音堂组页岩早期大量生烃、长期深埋、生气时间早和抬升时间早,使得JY1井王音铺组-观音堂组页岩含气量(0.28~0.93 m3/t)并不理想。
[Abstract]:The tectonic thermal evolution history can determine the maturity state and tectonic evolution characteristics of shale in different geological periods, which is of great significance for the study of shale gas bearing and resource evaluation. The thermal evolution and burial history of Xiuwu basin are studied and reconstructed by inclusion thermometry, tectonic-thermal evolution method and basin simulation software Petromod. The denudation thickness of JY1 well in Xiuwu Basin is calculated to be 4 142.75 m.The heat flow value has undergone a low high to low variation process since the late Paleozoic, and the Wangyinpu Guanyintang formation shale entered the hydrocarbon generation threshold in early Silurian. The early Silurian to the Middle Silurian is the oil generation stage, the late Silurian to the early Permian, the early Permian to the late Jurassic to the dry gas stage, the Wangyinpu formation to the Guanyintang formation to the early stage of hydrocarbon generation, and the late Silurian to early Permian to the late Permian to the late Jurassic. The early gas generation time and the early uplift time make the shale gas content of Wangyinpu formation-Guanyintang formation in JY1 well 0.28 ~ 0.93 m ~ (3 / t) not ideal.
【作者单位】：中国石油大学(北京)油气资源与探测国家重点实验室;中国石油大学(北京)科学技术研究院;中国石油大学(北京)非常规天然气研究院;江西省天然气(赣投气通)控股有限公司;
【基金】：国土资源部项目(ZX20150274) 江西修武盆地页岩含气性影响因素及定量预测(HX20150443)资助
【分类号】：P618.13

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