济阳拗陷上古生界煤系成烃潜力研究  

Study on Hydrocarbon-forming Potentiality in Upper Part of Palaeozoic Coal System in Jiyang Depression

作　　者：崔新瑞[1] 朱炎铭[1] 白文连[1] 张志庆[1] 姚海鹏[1] 

机构地区：[1]中国矿业大学资源学院,江苏徐州221008

出　　处：《山东国土资源》2007年第9期1-4,共4页Shandong Land and Resources

基　　金：国土资源部;前第三系战略选区项目子课题--华北东部石炭-二叠系地层与沉积体系研究;国家油气专项(编号QX2004-03)部分成果。

摘　　要：济阳拗陷是我国重要的油气生产基地,目前已在沾化凹陷义155井、惠民凹陷曲古1井发现煤成气藏,虽未形成工业规模的气田,但展示了煤成气良好的勘探前景。研究表明,济阳地区石炭-二叠纪煤层总残厚一般为10-30 m,煤层平均厚为16.75 m,最大残厚为40.5 m,最小为4.5 m。结合镜质组反射率研究和EASY%Ro法反演,提出济阳拗陷煤系的镜质组反射率值多处于0.6-2.0,属成熟—高成熟阶段,但各次级凹陷生烃率差距较大。综合研究表明,在沾化凹陷的孤岛—孤南地区,东营凹陷临近青城突起地区及惠民凹陷的中—南坡地区将是很有利的煤成烃地区。Jiyang depression is an important base area of producing oil and gas. Now gas pools have been found in Yi -155 well at Zhanhua depression and No. 1 Qugu well at Huimn depression, which show good future in exploring gas resource. As showed by the study, remaining depths of coal in Carbonate and Permian are 10 - 30m, average depth is 16.75m, the maximum depth is 40.5m, and the minimum depth is 4.5m. Combining vitrinite reflectance and conversion by EASY% Ro method, it is put forward that vitrinite reflectance value in Jiyang depression is 0.6-2.0 in general which belongs to mature and overmature stage. But the gap of hydrocarbon - forming ratios in each class secondary depression is great. Through synthetic analysis, it is showed that Gudao -Gunan area at Zhanhua depression, the areas near Qingcheng rais at Dongying depression and the central and southern areas at Huimin depression are good areas for forming gas.

关 键 词：济阳拗陷 上古生界 显微组分 煤成烃 山东 

分 类 号：P534.4[天文地球—古生物学与地层学] P618.11[天文地球—地质学]