惠民凹陷煤系烃源岩评价及潜力分析  

Evaluation and Potential Analysis of Coal Measures Source Rocks in Huimin Sag

作　　者：杨芸 杨仓 张承志 唐闻强 李岩 YANG Yun;YANG Cang;ZHANG Chengzhi;TANG Wenqiang;LI Yan(Institute of Sedimentry Geology, Chengdu University of Technology, Chengdu 610059, Sichuan, China;Well Testing Company, Qinghai Oilfield of CNPC, Dunhuang 736202, Gansu, China;The Nile Company, CNPC, Beijing 100034, China;No. 1 Oil Production Plant, Qinghai Oilfield of CNPC, Dunhuang 736202, Gansu, China;College of Geoscience, Northeast Petroleum University, Daqing 163318, Heilongjiang, China)

机构地区：[1]成都理工大学沉积地质研究院,四川成都610059 [2]中国石油青海油田测试公司,甘肃敦煌736202 [3]中油国际尼罗河公司,北京100034 [4]中国石油青海油田采油一厂,甘肃敦煌736202 [5]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《西安石油大学学报（自然科学版）》2018年第3期23-28,50,共7页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项(2016ZX05009005)

摘　　要：采用常规静态实验和动力学模拟方法,判识惠民凹陷石炭—二叠统煤系烃源岩有机质类型,评价煤系烃源岩生气能力,建立煤岩生烃动力学参数,动态模拟生气过程。研究认为,惠民凹陷石炭—二叠纪煤系烃源岩属于中—好烃源岩,生烃潜力巨大,具有煤气成藏的物质基础,主要经历早三叠期和侏罗—白垩系二次生气高峰期,新生界沉积后基本没有生烃发生;煤成气藏未来的勘探重点在曲堤潜山构造带的东北部构造高点部分和局部高点部位、王判镇潜山带小而丰的甜点型气藏、济阳地堑东部的白桥断层遮挡的断块圈闭和西南缓坡带的靠近曲堤地堑一侧的部位。The types of the organic matter in Carboniferous - Permian coal measures source rocks in Huimin sag were identified and its hydrocarbon generation potential was evaluated by conventional static experiment and dynamic sinmlation. It is held that the Carboniferous -Permian hydrocarbon source rocks in Huimin Sag belong to medium- good source rock, they have the material basis for coal gas aeeunmlation, and have great hydrocarbon generation potential. Their hydrocarbon generation peaks are in early Jurassic period and Jurassic - Cretaceous period,but there is basically no hydrocarbon generation after the Cenozoic. The future focus of coal gas exploration should be placed on the tectonic high point part and local high point parts in the northeast of Qudi buried-hill tectonic belt, the small and plentiful desserts in Wangpanzhen buried-hill tectonic belt, the fault block trap sheltered by Baiqiao fault in the east of Jiyang grahen, and the Qudi grahen side of the southwest gentle slope.

关 键 词：惠民凹陷 煤系烃源岩 生烃潜力 生烃动力学 模拟实验 

分 类 号：TE122.1[石油与天然气工程—油气勘探]