任泽樱;刘洛夫;高小跃;肖飞;王英;吴康军;肖正阳;

• 1:中国石油大学(北京)油气资源与探测国家重点实验室

• 2:中国石油大学(北京)盆地与油藏研究中心

摘要(Abstract)：

在分析有机碳质量分数、镜质体反射率和矿物组成的基础上,应用扫描电镜和氮气吸附实验研究孔隙的分布形态和微观孔隙结构.结果表明:依奇克里克构造带侏罗系泥页岩发育原生粒间孔、溶蚀孔、晶间孔、有机质孔和微裂缝等孔隙类型,其中原生粒间孔最为发育.泥页岩样品的平均孔径多介于3.9~33.0nm之间,中孔较为发育,对岩石内部孔隙空间的贡献最大,是气体赋存的主要场所.研究区泥页岩孔隙结构比较复杂,以一端封闭的微孔隙为主,部分为平板状狭长微孔隙和开放型孔隙,在垂向上由浅到深,孔隙开放程度减小.脆性矿物对孔隙体积影响较大,尤其是宏孔;黏土矿物对孔隙体积有一定抑制作用.伴随着成岩演化,泥页岩孔隙结构发生较大改变,随着埋深加大,压实作用越强烈,热演化程度越高,对孔隙改造越明显.该研究对页岩气勘探开发有指导意义.

关键词(KeyWords)：孔隙结构;氮气吸附;侏罗系泥页岩;依奇克里克构造带;库车拗陷

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZH05018-002);; 国土资源部“全国页岩气资源潜力调查评价及有利区优选”项目(2009GYXQ15-09-00);; 油气资源与探测国家重点实验室课题(PRP2009-02)

作者(Author):任泽樱;刘洛夫;高小跃;肖飞;王英;吴康军;肖正阳;

Email:

参考文献(References)：

• [1]邹才能,董大忠,王社教,等.中国页岩气形成机理、地质特征及资源潜力[J].石油勘探与开发,2010,37(6):641-653.Zou Caineng,Dong Dazhong,Wang Shejiao,et al.Geological characteristics,formation mechanism and potential of gas in China[J].Petroleum Exploration and Development,2010,37(6):641-653.

• [2]张金川,金之钧,袁明生.页岩气成藏机理和分布[J].天然气工业,2004,24(7):15-18.Zhang Jinchuan,Jin Zhijun,Yuan Mingsheng.Reservoiring mechanism of shale gas and its distribution[J].Natural Gas Industry,2004,24(7):15-18.

• [3]宫美林,丁文龙,皮冬冬,等.鄂尔多斯盆地东南部下寺湾—云岩区二叠系山西组页岩气形成条件[J].东北石油大学学报,2013,37(3):1-10.Gong Meilin,Ding Wenlong,Pi Dongdong,et al.Forming conditions of shale gas of the Shanxi formation of permian in the southeast of Ordos basin[J].Journal of Northeast Petroleum University,2013,37(3):1-10.

• [4]魏明强,段永刚,方全堂,等.页岩气藏孔渗结构特征和渗流机理研究现状[J].油气藏评价与开发,2011,1(4):73-77.Wei Mingqiang,Duan Yonggang,Fang Quantang,et al.Current research situation of porosity&permeability characteristics and seepage mechanism of shale gas reservoir[J].Reservoir Evaluation and Development,2011,1(4):73-77.

• [5]Ross D J K,Bustin R M.The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs[J].Marine and Petroleum Geology,2009,26(6):916-927.

• [6]Slatt M R,Brien R O.Pore types in the barnett and woodford gas shales:Contribution to understanding gas storage and migration pathways in fine-grained rocks[J].AAPG Bulletin,2011,95(12):2017-2030.

• [7]武景淑,于炳松,张金川,等.渝东南渝页1井下志留统龙马溪组页岩孔隙特征及其主控因素[J].地学前缘,2013,20(3):260-269.Wu Jingshu,Yu Bingsong,Zhang Jinchuan,et al.Pore characteristics and controlling factors in the organic-rich shale of the lower silurian Longmaxi formation revealed by samples from a well in southeastern Chongqing[J].Earth Science Frontiers,2013,20(3):260-269.

• [8]杨帆,邸宏利,王少依,等.塔里木盆地库车拗陷依奇克里克构造带侏罗系储层特征及成因[J].古地理学报,2002,4(2):46-55.Yang Fan,Di Hongli,Wang Shaoyi,et al.Reservoir characteristics and genesis of the Jurassic in Yiqikelike tectonic zone of Kuqa depression in Tarim basin[J].Journal of Palaeogeography,2002,4(2):46-55.

• [9]张琴,边瑞康,唐颖,等.库车拗陷页岩气聚集条件与勘探前景[J].大庆石油学院学报,2010,34(6):13-17.Zhang Qin,Bian Ruikang,Tang Ying,et al.Geological condition and exploration prospect of shale gas in Kuqa depression[J].Journal of Daqing Petroleum Institute,2010,34(6):13-17.

• [10]李未蓝.浅谈新疆页岩气勘探开发的可行性[J].新疆石油科技,2013,23(4):11-12.Li Weilan.The study about the Xinjiang shale gas exploration and development feasibility[J].Xinjiang Petroleum Science&Technology,2013,23(4):11-12.

• [11]尚晓庆,刘洛夫,高小跃,等.库车拗陷依奇克里克构造带油气输导体系特征及输导模式[J].大庆石油学院学报,2012,36(1):31-40.Shang Xiaoqing,Liu Luofu,Gao Xiaoyue,et al.Characteristics of hydrocarbon pathway system and transport model of the Yiqikelike structural belt in Kuqa depression[J].Journal of Daqing Petroleum Institute,2012,36(1):31-40.

• [12]张仲培,林伟,王清晨.库车拗陷克拉苏-依奇克里克构造带的构造演化[J].大地构造与成矿学,2003,27(4):327-336.Zhang Zhongpei,Lin Wei,Wang Qingchen.Progressive structural evolution of Kelasu-Yiqikelike structural belt in Kuqa depression[J].Geotectonica et Metallogenia,2003,27(4):327-336.

• [13]李维锋,王成善,高振中,等.塔里木盆地库车拗陷中生代沉积演化[J].沉积学报,2000,18(4):534-538.Li Weifeng,Wang Chengshan,Gao Zhenzhong,et al.Sedimentary evolution of Mesozoic era in Kuche depression,Tarim basin[J].Acta Sedimentologica Sinica,2000,18(4):534-538.

• [14]何宏,郭建华,高云峰.塔里木盆地库车拗陷侏罗系层序地层与沉积相[J].江汉石油学院学报,2002,24(4):1-3.He Hong,Guo Jianhua,Gao Yunfeng.Jurassic sequence stratigraphy and sedimentary facies in Kuqa depression of Tarim basin[J].Journal of Jianghan Petroleum Institute,2002,24(4):1-3.

• [15]郭宏莉,朱如凯.利用有机包裹体探讨塔里木盆地依奇克里克构造带下侏罗统油气运移与油气藏的存储条件[J].岩石学报,2005,21(5):1467-1472.Guo Hongli,Zhu Rukai.To research hydrocarbon migration and preservation conditions by fluid inclusion in the eastern Kuqa depression,Tarim basin[J].Acta Petrologic Sinica,2005,21(5):1467-1472.

• [16]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.

• [17]黄振凯,陈建平,薛海涛,等.松辽盆地白垩系青山口组泥页岩孔隙结构特征[J].石油勘探与开发,2013,40(1):58-65.Huang Zhenkai,Chen Jianping,Xue Haitao,et al.Microstructural characteristics of the cretaceous Qingshankou formation shale,Songliao basin[J].Petroleum Exploration and Development,2013,40(1):58-65.

• [18]Milner M,Mclin R,Petriello J,et al.Imaging texture and porosity in mudstones and shales:Comparison of secondary and ion-milled backscatter SEM methods[C].SPE 138975,2010.

• [19]闫德宇,黄文辉,李昂,等.鄂尔多斯盆地上古生界海陆过渡相页岩气聚集条件及有利区预测[J].东北石油大学学报,2013,37(5):1-9.Yan Deyu,Huang Wenhui,Li Ang,et al.Preliminary analysis of marine-continental transitional shale gas accumulation conditions and favorable areas in the upper Paleozoic Ordos basin[J].Journal of Northeast Petroleum University,2013,37(5):1-9.

• [20]张红日,刘常洪.吸附回线与煤的孔结构分析[J].煤炭工程师,1993(2):23-27.Zhang Hongri,Liu Changhong.Analysis of adsorption loop and porestructure in coal[J].Coal Engineer,1993(2):23-27.

• [21]徐如人,庞文琴,于吉红,等.分子筛与多孔材料化学[M].北京:科学出版社,2004:130.Xu Ruren,Pang Wenqin,Yu Jihong,et al.Analysis of chemistry-zeolites and porous materials[M].Bejing:Science Press,2004:130.

• [22]Rouquerol J,Avnir D,Fairbridge C W,et al.Recommendations for the characterization of porous solids[J].Pure Appl.Chem.,1994,66(8):1739-1758.

• [23]苗建宇,祝总祺,刘文荣,等.济阳拗陷古近系一新近系泥岩孔隙结构特征[J].地质评论,2003,49(3):330-336.Miao Jianyu,Zhu Zongqi,Liu Wenrong,et al.Characteristics of pore structures of paleogene-neogene argillaceous rocks in the Jiyang depression[J].Geological Review,2003,49(3):330-336.

• [24]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 Chang 7of Mesozoic Yanchang formation in Xiasiwan area of Yanchang[J].Journal of Northeast Petroleum,2012,36(4):10-17.

• [25]赵佳楠,陈永进,姜文斌.松辽盆地南部白垩系青山口组页岩气储层评价及生储有利区预测[J].东北石油大学学报,2013,37(2):26-36.Zhao Jianan,ChenYongjin,Jiang Wenbin.Shale gas reservoir evaluation and prediction of the shale gas reservoir's favorable zone in the cretaceous Qingshankou formation of the southern Songliao basin[J].Journal of Northeast Petroleum,2013,37(2):26-36.

• [26]Curtis J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.

• [27]Liu Luofu,Wang Ying,Gao Xiaoyue,et al.Diagenesis and porosity evolution of Jurassic continental shales in Tarim basin[J].Energy Exploration and Exploitation,2013,31(6):899-913.

• [28]聂海宽,张金川,包书景,等.四川盆地及其周缘上奥陶统—下志留统页岩气聚集条件[J].石油与天然气地质,2012,33(3):335-345.Nie Haikuan,Zhang Jinchuan,Bao Shujing,et al.Shale gas accumulation conditions of the upper ordovician-lower silurian in Sichuan basin and its periphery[J].Oil&Gas Geology,2012,33(3):335-345.

• [29]Selley R C.Porosity gradients in North Sea oil-bearing sandstones[J].Journal of the Geological Society,1978,135(1):119-132.

• [30]刘辉,吴少华,姜秀民,等.快速热解褐煤焦的低温氮吸附等温线形态分析[J].煤炭学报,2005,30(4):507-510.Liu Hui,Wu Shaohua,Jiang Xiumin,et al.The configuration analysis of the adsorption isotherm of nitrogen in low temperature with the lignite char produced under fast pyrolysis[J].Journal of China Coal Society,2005,30(4):507-510.

• [31]杨威,魏国齐,李宇平,等.库车前陆盆地下侏罗统成岩作用[J].天然气工业,2005,25(9):17-19.Yang Wei,Wei Guoqi,Li Yuping,et al.Diageneses of lower Jurassic in Kuche formation basin[J].Natural Gas Industry,2005,25(9):17-19.