史鹏;姜呈馥;孙兵华;高栋臣;

• 1:陕西延长石油(集团)有限责任公司研究院

摘要(Abstract)：

以鄂尔多斯盆地三叠系延长组泥页岩为研究对象,采用岩心观察、薄片鉴定、扫描电镜分析、比表面积及孔径分布分析和等温吸附实验等方法,研究页岩气储层微观储集空间的类型、成因及微观孔隙结构.结果表明:延长组泥页岩微孔隙与矿物的形成与转化存在一定联系,微孔隙中次生孔隙是不稳定矿物溶解和矿物成岩转化过程体积收缩等作用的综合结果.泥页岩孔径分布主要在10~30nm之间,孔径分布特征与页岩比表面积具有较好的对应关系.根据等温吸附—脱附曲线形态,将研究区微孔隙形态分为四类,研究区以第Ⅱ类微孔隙结构为主,页岩气的解吸效率相对较高.该研究结果为明确研究区延长组页岩微观储集空间特征及页岩气赋存机理提供指导.

关键词(KeyWords)：微观储集空间;孔径分布;孔隙结构;页岩;延长组;鄂尔多斯盆地

Abstract:

Keywords:

基金项目(Foundation):陕西省科技统筹创新工程计划项目(2012KTZB03-03)

作者(Author):史鹏;姜呈馥;孙兵华;高栋臣;

Email:

参考文献(References)：

• [1]郭彤楼,张汉荣.四川盆地焦石坝页岩气田形成与富集高产模式[J].石油勘探与开发,2014,41(1):28-36.Guo Tonglou,Zhang Hanrong.Formation and enrichment mode of Jiaoshiba shale gas field,Sichuan basin[J].Petroleum Exploration and Development,2014,41(1):28-36.

• [2]郭旭升,胡东风,文治东,等.四川盆地及周缘下古生界海相页岩气富集高产主控因素——以焦石坝地区五峰组—龙马溪组为例[J].中国地质,2014,41(3):893-901.Guo Xusheng,Hu Dongfeng,Wen Zhidong,et al.Major factors controlling the accumulation and high productivity in marine shale gas in the lower Paleozoic of Sichuan basin and its periphery:A case study of the Wufeng-Longmaxi formation of Jiaoshiba area[J].Geology in China,2014,41(3):893-901.

• [3]王香增,高胜利,高潮.鄂尔多斯盆地南部中生界陆相页岩气地质特征[J].石油勘探与开发,2014,41(3):294-304.Wang Xiangzeng,Gao Shengli,Gao Chao.Geological features of Mesozoic continental shale gas in south of Ordos basin,NW China[J].Petroleum Exploration and Development,2014,41(3):294-304.

• [4]雷宇,王凤琴,刘红军,等.鄂尔多斯盆地中生界页岩气成藏地质条件[J].油气田开发,2011,29(6):49-54.Lei Yu,Wang Fengqin,Liu Hongjun,et al.Geological conditions for shale gas accumulation in Ordos basin Mesozoic[J].Oil and Gas Field Development,2011,29(6):49—54.

• [5]杨镱婷,张金川,王香增,等.陆相页岩气的泥页岩评价——以延长下寺湾区上三叠统延长组长7段为例[J].东北石油大学学报,2012,36(4):10-17.Yang Yiting,Zhang Jinchuan,Wang Xiangzeng,et al.Source rock evaluation of continental shale gas:A case study of Chang7of Mesozoic Yanchang formation in Xiasiwan area of Yanchang[J].Journal of Northeast Petroleum University,2012,36(4):10-17.

• [6]姜呈馥,王香增,张丽霞,等.鄂尔多斯盆地东南部延长组长7段陆相页岩气地质特征及勘探潜力评价[J].中国地质,2013,40(6):1880-1888.Jiang Chengfu,Wang Xiangzeng,Zhang Lixia,et al.Geological characteristics of shale and exploration potential of continental shale gas in 7th member of Yanchang formation,southeast Ordos basin[J].Geology in China,2013,40(6):1880-1888.

• [7]徐士林,包书景.鄂尔多斯盆地三叠系延长组页岩气形成条件及有利发育区预测[J].天然气地球科学,2009,20(3):460-465.Xu Shilin,Bao Shujing.Preliminary analysis of shale gas resource potential and favorable areas in Ordos basin[J].Natural Gas Geoscience,2009,20(3):460-465.

• [8]王香增,张金川,曹金舟,等.陆相页岩气资源评价初探:以延长直罗—下寺湾区中生界长7段为例[J].地学前缘,2012,19(2):192-197.Wang Xiangzeng,Zhang Jinchuan,Cao Jinzhou,et al.A preliminary discussion on evaluation of continental shale gas resources:A case study of Chang7of Mesozoic Yanchang formation in Zhiluo-Xiasiwan area of Yanchang[J].Earth Science Frontiers,2012,19(2):192-197.

• [9]杨峰,宁正福,胡昌蓬,等.页岩储层微观孔隙结构特征[J].石油学报,2013,34(2):301-311.Yang Feng,Ning Zhengfu,Hu Changpeng,et al.Characterization of microscopic pore structures in shale reservoirs[J].Acta Petrolei Sinica,2013,34(2):301-311.

• [10]郭旭升,李宇平,刘若冰,等.四川盆地焦石坝地区龙马溪组页岩微观孔隙结构特征及其控制因素[J].天然气工业,2014,34(6):1-8.Guo Xusheng,Li Yuping,Liu Ruobing,et al.Characteristics and controlling factors of micro-pore structures of Longmaxi shale play in the Jiaoshiba area,Sichuan basin[J].Natural Gas Industry,2014,34(6):1-8.

• [11]赖锦,王贵文,郑懿琼,等.低渗透碎屑岩储层孔隙结构分形维数计算方法——以川中地区须家河组储层41块岩样为例[J].东北石油大学学报,2013,37(1):1-8.Lai Jin,Wang Guiwen,Zheng Yiqiong,et al.Method for calculating the fractal dimension of the pore structure of low permeability reservoirs:A case study on the Xujiahe formation reservoir in central Sichuan basin[J].Journal of Northeast Petroleum University,2013,37(1):1-8.

• [12]董大忠,邹才能,李建忠,等.页岩气资源潜力与勘探开发前景[J].地质通报,2011,30(2/3):324-336.Dong Dazhong,Zou Caineng,Li Jianzhong,et al.Resource potential,exploration and development prospect of shale gas in the whole world[J].Geological Bulletin of China,2011,30(2/3):324-336.

• [13]王社教,李登华,李建忠,等.鄂尔多斯盆地页岩气勘探潜力分析[J].天然气工业,2011,31(12):40-46.Wang Shejiao,Li Denghua,Li Jianzhong,et a1.Exploration potential of shale gas in the Ordos basin[J].Natural Gas Industry,201l,31(12):40-46.

• [14]张烨毓,周文,唐瑜,等.鄂尔多斯盆地三叠系长7油层组页岩储层特征[J].成都理工大学学报:自然科学版,2013,40(6):671-676.Zhang Yeyu,Zhou Wen,Tang Yu,et al.Characteristics of shale reservoir rocks in Member7of Triassic Yanchang formation in Ordos basin,China[J].Journal of Chengdu University of Technology:Science&Technology Edition,2013,40(6):671-676.

• [15]Rouquerol J,Avnir D,Fairbridge C W,et al.Recommendations for the characterization of porous solids[J].Pure&Applied Chemistry,1994,66(8):1739-1785.

• [16]梁兴,张廷山,杨洋,等.滇黔北地区筇竹寺组高演化页岩气储层微观孔隙特征及其控制因素[J].天然气工业,2014,34(2):18-26.Liang Xing,Zhang Tingshan,Yang Yang,et al.Microscopic pore structure and its controlling factors of overmature shale in the lower Cambrian Qiongzhusi Fm,northern Yunnan and Guizhou provinces of China[J].Natural Gas Industry,2014,34(2):18-26.

• [17]田华,张水昌,柳少波,等.压汞法和气体吸附法研究富有机质页岩孔隙特征[J].石油学报,2012,33(3):419-427.Tian Hua,Zhang Shuichang,Liu Shaobo,et al.Determination of organic-rich shale pore features by mercury injection and gas adsorption methods[J].Acta Petrolei Sinica,2012,33(3):419-427.

• [18]杨超,张金川,唐玄.鄂尔多斯盆地陆相页岩微观孔隙类型及对页岩气储渗的影响[J].地学前缘,2013,20(4):241-250.Yang Chao,Zhang Jinchuan,Tang Xuan,et al.Microscopic pore types and its impact on the storage and permeability of continental shale gas,Ordos basin[J].Earth Science Frontiers,2013,20(4):240-250.

• [19]陈萍,唐修义.低温氮吸附法与煤中微孔隙特征的研究[J].煤炭学报,2001,26(5):552-556.Chen Ping,Tang Xiuyi.The research on the adsorption of nitrogen in low temperature and micro-pore properties in coal[J].Journal of China Coal Society,2001,26(5):552-556.

• [20]薛华庆,王红岩,刘洪林,等.页岩吸附性能及孔隙结构特征——以四川盆地龙马溪组页岩为例[J].石油学报,2013,34(5):826-831.Xue Huaqing,Wang Hongyan,Liu Honglin,et al.Adsorption capability and aperture distribution characteristics of shales:Taking the Longmaxi formation shale of Sichuan basin as an example[J].Acta Petrolei Sinica,2013,34(5):826-831.