牟页1井海陆过渡相页岩发育特征及其含气性  

Characteristics and Gas-bearing Property of Transitional Shale in Well Mouye 1

作　　者：魏晓亮[1,2] 张金川[1,2] 党伟[1,2] 李中明[3] 杜晓瑞[1,2] 张明强[1,2] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]页岩气勘探与评价国土资源部重点实验室中国地质大学,北京100083 [3]河南省地质调查院,郑州450001

出　　处：《科学技术与工程》2016年第26期42-50,共9页Science Technology and Engineering

基　　金：国家自然基金项目(41272617);河南省重大科技专项(151100311000)资助

摘　　要：南华北盆地广泛发育了以上古生界山西组、太原组为代表的海陆过渡相页岩;但是针对该地区的页岩气资源调查存在较多的空白方面。该地区第一口页岩气地质调查井——牟页1井的成功钻探对于获取南华北地区上古生界山西组、太原组泥页岩发育特征及含气量等重要参数有重要意义。通过对岩心样品进行有机地球化学、岩石矿物等实验,确定了牟页1井山西、太原组泥页岩具有中-高含量有机碳(山西组0.44%~5.10%、太原组0.92%~5.06%)、热演化程度高(镜质体反射率Ro>2.0),有机质孔受有机质类型影响而不发育的特点。解吸法对岩心进行含气量测试,牟页1井山西组、太原组页岩地层具有较高的含气量,分别介于0.71~3.70 m^3/t、1.09~4.30 m^3/t之间,显示出南华北地区上古生界山西组、太原组具有良好的页岩气勘探开发潜力。同时数据拟合显示含气量与TOC和黏土矿物含量直接相关,说明有机质和矿物组分是影响该地区海陆过渡相页岩含气量的重要因素。In Southern North China Basin,transitional facies stratum of Shanxi group and Taiyuan group,Paleozoic was widely developed. The exploration drilling of well Mouye 1 as the first geological shale gas survey well in Southern North China Basin,provided the characteristics,gas content and other parameters of shale in Shanxi Formation and Taiyuan Formation. Based on organic geochemistry,rocks,minerals and other experiments of core samples showed the phenomenon that Shanxi Formation and Taiyuan Formation shale has high TOC content（ 0. 44% ~5. 10%,0. 92% ~ 5. 06%,respectively）,high thermal maturity（ Ro 〉 2. 0） and low content of organic pores dominated by organic style. Desorption experiment showed high gas content of shale of Shanxi Formation and Taiyuan Formation in Mouye 1 Well（ 0. 71 ~ 3. 70 m^3/ t,1. 09 ~ 4. 30 m^3/ t,respectively） indicating good potential for shale gas exploration and development of transitional facies stratum,Upper Paleozoic,in Southern North China Basin. Data fitting showed a direct relation between gas content and TOC,clay mineral content,indicated organic material and mineral is an important effect of gas content of transitional shale in Southern North China Basin.

关 键 词：牟页1井 南华北盆地 上古生界 页岩气 

分 类 号：TE135.3[石油与天然气工程—油气勘探]