惠民凹陷煤岩生烃动力学及勘探有利区预测  

Dynamic analysis of hydrocarbon generation and prediction of favorable areas for coal and rock in Huimin area, China

作　　者：郑欢[1] 张银联[2] 江峰 杨芸 朱遂珲[5] ZHENG Huan;ZHANG Yinlian;JIANG Feng;YANG Yun;ZHU Suihui(College of Earth Science,Yangtze University,Wuhan 430100,China;Tarim Oilfield Ltd. of China Petroleum,Korla 841000,China;College of Earth Science,Northeast Petroleum University,Daqing 163318,China;Qinghai Oilfield Well Testing Company of China Petroleum,Dunhuang 736202,China;Southwest Sichuan Oil and Gas Field Branch,Northwest Sichuan Gas Field,Mianyang 621700,China)

机构地区：[1]长江大学地球科学学院,武汉430100 [2]中国石油塔里木油田公司,新疆库尔勒841000 [3]东北石油大学地球科学学院,黑龙江大庆163318 [4]中国石油青海油田测试公司,甘肃敦煌736202 [5]中国石油西南油气田分公司川西北气矿,四川绵阳621700

出　　处：《成都理工大学学报（自然科学版）》2019年第1期64-69,共6页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家科技重大专项(2016ZX05009015)

摘　　要：在分析烃源岩平面发育、丰度、类型及成熟度基础上,采用高压釜模拟实验与动力学模型融合的方法,结合构造演化史研究,定量模拟惠民凹陷石炭-二叠系煤岩生气过程,预测有利勘探区。惠民地区石炭-二叠系煤岩地层中有机质以Ⅲ型为主,属于高丰度、生气为主的烃源岩,并进入成熟-高成熟阶段,具有良好的生气基础;该煤岩具有2次生气特征:分别发生于260～200 Ma B.P.和80～55 Ma B.P.,累计生气率达75%,并与包裹体测温结果显示的成藏期一致。济阳地堑带东侧的白桥断层附近、曲堤潜山构造带的东北部构造高点和局部高点部位、西南缓坡带靠近气源区的小型气藏及王判镇潜山带的规模小、丰度高的"甜点"型气藏应该是勘探的重点目标。Based on the analysis of the plane development, abundance, type and maturity of the source rock, through the application of autoclave simulated experiment and dynamic model, combined with the study of structural evolution, the gas generation of Carboniferous-Permian coal rock in the Huimin sag is quantitatively simulated, and the favorable exploration area is predicted. It is showed that the organic material in the strata of Carboniferous-Permian coal rock is mainly composed of type Ⅲ, characteristic of high abundance, mature-high mature and belonging to gas generation source rock.There are 2 generations of gas formation for the coal rock, occurring in the 260~200 Ma B.P. and 80~55 Ma B.P., respectively, with a cumulative gas generation rate of 75% which is consistent with the results of the inclusion thermometry. It is considered that such positions as the Baiqiao fault nearby in the eastern segment of Jiyang graben, the structural culmination in the northeast of Qudi buried hill structural belt, and the gentle sloop belt in the southwest and Wangpanzhen buried hill are key targets for the future gas exploration.

关 键 词：煤岩 生烃动力学 有利区 预测 

分 类 号：TE122.11[石油与天然气工程—油气勘探]