东营凹陷泥页岩孔隙结构特征及其演化规律
|
摘要
泥页岩物质组成多样且孔隙结构复杂,明确其孔隙结构特征及其演化规律对预测泥页岩油气富集层段具有重要意义。为此,以东营凹陷S井泥页岩为研究对象,采用氮气吸附-压汞联合测孔法,获取泥页岩完整的孔径分布特征及不同类型孔体积等定量参数。结果表明:泥质粉砂岩以大孔为主,粉砂质泥岩和泥岩以介孔和微孔为主。通过分析矿物组分、有机组分与孔隙结构的关系,探讨孔隙结构发育的影响因素,发现泥页岩中黏土矿物含量和类型对介孔和微孔发育影响较大,碳酸盐类矿物对孔隙结构发育的影响受其成因控制;有机质丰度、类型等对孔隙结构的发育影响更显著。分析孔隙结构、矿物组分和有机组分的剖面演化特征,发现在埋藏演化过程中,矿物转化、有机质生烃及埋藏压实作用共同导致孔隙演化的多阶段性。
Mud shale material composition is variable and its pore structure is complex,thus,clarifying the characteristics,the influence factors and the evolution of nano-pores in shale is of great significance to predict the oil/gas enrichment intervals. Shale from Well S in Dongying Sag was studied with the combination of N_2 adsorption and mercury intrusion methods,to obtain the pore size distribution,the volume of different type of pore,and other quantitative parameters. The results show that the argillaceous siltstone is dominated of macropore,and the silty mudstone and mudstone are mainly characterized by mesopore and micropore. By analysing the relationships among mineral composition,organic composition and pore structure,it is found that clay content and clay mineral type in mud shale have the most strong effect on micropore and mesopore.And the influence of carbonate minerals on the pore structure is controlled by its genesis. Furthermore,the total organic carbon(TOC),and organic matter type affect more strongly the pore structure of mud shale. By analyzing the evolution characteristics of pore structure,mineral composition and organic composition,it is found that mineral transformation,hydrocarbon generation of organic matter and burial compaction together lead to the multiple stages pore evolution during burial evolution.
Mud shale material composition is variable and its pore structure is complex,thus,clarifying the characteristics,the influence factors and the evolution of nano-pores in shale is of great significance to predict the oil/gas enrichment intervals. Shale from Well S in Dongying Sag was studied with the combination of N_2 adsorption and mercury intrusion methods,to obtain the pore size distribution,the volume of different type of pore,and other quantitative parameters. The results show that the argillaceous siltstone is dominated of macropore,and the silty mudstone and mudstone are mainly characterized by mesopore and micropore. By analysing the relationships among mineral composition,organic composition and pore structure,it is found that clay content and clay mineral type in mud shale have the most strong effect on micropore and mesopore.And the influence of carbonate minerals on the pore structure is controlled by its genesis. Furthermore,the total organic carbon(TOC),and organic matter type affect more strongly the pore structure of mud shale. By analyzing the evolution characteristics of pore structure,mineral composition and organic composition,it is found that mineral transformation,hydrocarbon generation of organic matter and burial compaction together lead to the multiple stages pore evolution during burial evolution.
引文
[1]SING K S W,EVERETT D H,HAUL R A W,et al.Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity(recommendations1984)[J].Pure and Applied Chemistry,1985,57(4):603-619.
[2]ZHU X J,CAI J G,SONG G Q,et al.Factors influencing the specific surface areas of argillaceous source rocks[J].Applied Clay Science,2015,109/110:83-94.
[3]杨侃,陆现彩,刘显东,等.基于探针气体吸附等温线的矿物材料表征技术:Ⅱ.多孔材料的孔隙结构[J].矿物岩石地球化学通报,2006,25(4):362-368.YANG Kan,LU Xiancai,LIU Xiandong,et al.Characterization techniqueⅡof mineral material based on probe gas adsorption isotherm:Nano-pore structure of porous material[J].Bulletin of Mineralogy,Petrology and Geochemistry,2006,25(4):362-368.
[4]CLARKSON C R,SOLANO N,BUSTIN R M.Pore structure characterization of north American shale gas reservoirs using USANS/SANS,gas adsorption,and mercury intrusion[J].Fuel,2013,103:606-616.
[5]KUILA U,PRASAD M.Specific surface area and pore-size distribution in clays and shales[J].Geophysical Prospecting,2013,61(2):341-362.
[6]耿一凯,金振奎,赵建华,等.页岩储层孔隙类型控制因素研究:以川东焦石坝地区龙马溪组为例[J].石油实验地质,2017,39(1):71-78.GENG Yikai,JIN Zhenkui,ZHAO Jianhua,et al.Controlling factors of pore types in shale reservoirs:A case study from the Longmaxi Formation in Jiaoshiba area,eastern Sichuan Basin[J].Petroleum Geology&Experiment,2017,39(1):71-78.
[7]SHENG Mao,LI Gensheng,TIAN Shouceng,et al.A fractal permeability model for shale matrix with multi-scale porous structure[J].Fractals-Complex Geometry,Patterns&Scaling in Nature&Society,2016,24(1):1-11.
[8]MA Yong,PAN Zhejun,ZHONG Ningning,et al.Experimental study of anisotropic gas permeability and its relationship with fracture structure of Longmaxi Shales,Sichuan Basin,China[J].Fuel,2016,180:106-115.
[9]尉鹏飞,张金川,隆帅,等.四川盆地及周缘地区龙马溪组页岩微观孔隙结构及其发育主控因素[J].中国石油勘探,2016,21(5):42-51.WEI Pengfei,ZHANG Jinchuan,LONG Shuai,et al.Characteristics and controlling factors of microscopic pore structure of Longmaxi Formation in Sichuan Basin and its periphery[J].China Petroleum Exploration,2016,21(5):42-51.
[10]黄璞,姜振学,程礼军,等.川东北牛蹄塘组页岩孔隙结构特征及其控制因素[J].大庆石油地质与开发,2016,35(5):156-162.HUANG Pu,JIANG Zhenxue,CHENG Lijun,et al.Pore structural characteristics and their controlling factors of Niutitang-Formation shale in Northeast Sichuan Basin[J].Petroleum Geology&Oilfield Development in Daqing,2016,35(5):156-162.
[11]曹涛涛,宋之光.页岩有机质特征对有机孔发育及储层的影响[J].特种油气藏,2016,23(4):7-13.CAO Taotao,SONG Zhiguang.Effects of organic matter properties on organic pore development and reservoir[J].Special Oil&Gas Reservoirs,2016,23(4):7-13.
[12]ZHU Xiaojun,CAI Jingong,WANG Xuejun,et al.Effects of organic components on the relationships between specific surface areas and organic matter in mudrocks[J].International Journal of Coal Geology,2014,133:24-34.
[13]曹涛涛,宋之光,王思波,等.不同页岩及干酪根比表面积和孔隙结构的比较研究[J].中国科学:地球科学,2015,45(2):139-151.CAO Taotao,SONG Zhiguang,WANG Sibo,et al.A comparative study of the specific surface area and pore structure of different shales and their kerogens[J].Science China:Earth Sciences,2015,45(2):139-151.
[14]LOUCKS R G,REED R M,RUPPEL S C,et al.Morphology,genesis,and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale[J].Journal of Sedimentary Research,2009,79(11/12):848-861.
[15]CURTIS M E,CARDOTT B J,SONDERGELD C H,et al.Development of organic porosity in the Woodford Shale with increasing thermal maturity[J].International Journal of Coal Geology,2012,103:26-31.
[16]CHEN Ji,XIAO Xianming.Evolution of nanoporosity in organicrich shales during thermal maturation[J].Fuel,2014,129:173-181.
[17]田华,张水昌,柳少波,等.X射线小角散射法研究页岩成熟演化过程中孔隙特征[J].石油实验地质,2016,38(1):135-140,146.TIAN Hua,ZHANG Shuichang,LIU Shaobo,et al.Evolution of pores in shale during thermal maturation using Small Angle X-ray Scattering(SAXS)[J].Petroleum Geology&Experiment,2016,38(1):135-140,146.
[18]郭秋麟,陈晓明,宋焕琪,等.泥页岩埋藏过程孔隙度演化与预测模型探讨[J].天然气地球科学,2013,24(3):439-449.GUO Qiulin,CHEN Xiaoming,SONG Huanqi,et al.Evolution and models of shale porosity during burial process[J].Natural Gas Geoscience,2013,24(3):439-449.
[19]SCHMITT M,FERNANDES C P,DA CUNHA NETO J A,et al.Characterization of pore systems in seal rocks using Nitrogen Gas Adsorption combined with Mercury Injection Capillary Pressure techniques[J].Marine and Petroleum Geology,2013,39(1):138-149.
[20]孙焕泉.济阳坳陷页岩油勘探实践与认识[J].中国石油勘探,2017,22(4):1-14.SUN Huanquan.Exploration practice and cognitions of shale oil in Jiyang depression[J].China Petroleum Exploration,2017,22(4):1-14.
[21]曹涛涛,宋之光,刘光祥,等.氮气吸附法-压汞法分析页岩孔隙、分形特征及其影响因素[J].油气地质与采收率,2016,23(2):1-8.CAO Taotao,SONG Zhiguang,LIU Guangxiang,et al.Characteristics of shale pores,fractal dimension and their controlling factors determined by nitrogen adsorption and mercury injection methods[J].Petroleum Geology and Recovery Efficiency,2016,23(2):1-8.
[22]滕建彬.东营凹陷利页1井泥页岩中白云石成因及层序界面意义[J].油气地质与采收率,2018,25(2):1-7,36.TENG Jianbin.Genesis of dolomite in shale drilled by Well Liye1in Dongying Sag and its significance on sequence boundary indication[J].Petroleum Geology and Recovery Efficiency,2018,25(2):1-7,36.
[23]曾翔,蔡进功,董哲,等.泥页岩沉积特征与生烃能力--以东营凹陷沙河街组三段中亚段-沙河街组四段上亚段为例[J].石油学报,2017,38(1):31-43.ZENG Xiang,CAI Jingong,DONG Zhe,et al.Sedimentary characteristics and hydrocarbon generation potential of mudstone and shale:a case study of Middle Submember of Member3 and Upper Submember of Member4 in Shahejie Formation in Dongying Sag[J].Acta Petrolei Sinica,2017,38(1):31-43.
[24]赵迪斐,郭英海,杨玉娟,等.渝东南下志留统龙马溪组页岩储集层成岩作用及其对孔隙发育的影响[J].古地理学报,2016,18(5):843-856.ZHAO Difei,GUO Yinghai,YANG Yujuan,et al.Shale Reservoir diagenesis and its impacts on pores of the Lower Silurian Longmaxi Formation in southeastern Chongqing[J].Journal of Palaeogeography,2016,18(5):843-856.
[25]MATHIA E J,BOWEN L,THOMAS K M,et al.Evolution of porosity and pore types in organic-rich,calcareous,Lower Toarcian Posidonia Shale[J].Marine and Petroleum Geology,2016,75:117-139.
[26]高凤琳,宋岩,姜振学,等.黏土矿物对页岩储集空间及吸附能力的影响[J].特种油气藏,2017,24(3):1-8.GAO Fenglin,SONG Yan,JIANG Zhenxue,et al.Influence of clay minerals on shale storage space and adsorptive capacity[J].Special Oil and Gas Reservoirs,2017,24(3):1-8.
[27]JI Liming,ZHANG Tongwei,MILLIKEN K L,et al.Experimental investigation of main controls to methane adsorption in clay-rich rocks[J].Applied Geochemistry,2012,27(12):2 533-2 545.
[28]张晶巧,蔡进功,王学军,等.东营凹陷湖相烃源岩孢粉相特征及其意义[J].中南大学学报:自然科学版,2013,44(8):3 446-3 452.ZHANG Jingqiao,CAI Jingong,WANG Xuejun,et al.Palynofacies of lacustrine source rocks in Dongying Depression and its significance[J].Journal of Central South University:Science and Technology,2013,44(8):3 446-3 452.
[29]HACKLEY P C,CARDOTT B J.Application of organic petrography in North American Shale petroleum systems:A review[J].International Journal of Coal Geology,2016,163:8-51.
[30]CHALMERS G R L,BUSTIN R M.A multidisciplinary approach in determining the maceral(kerogen type)and mineralogical composition of Upper Cretaceous Eagle ford formation:impact on pore development and pore size distribution[J].International Journal of Coal Geology,2017,171:93-110.
[31]LI Jing,ZHOU Shixin,LI Yuanju,et al.Effect of organic matter on pore structure of mature lacustrine organic-rich shale:A case study of the Triassic Yanchang Shale,Ordos Basin,China[J].Fuel,2016,185:421-431.
[2]ZHU X J,CAI J G,SONG G Q,et al.Factors influencing the specific surface areas of argillaceous source rocks[J].Applied Clay Science,2015,109/110:83-94.
[3]杨侃,陆现彩,刘显东,等.基于探针气体吸附等温线的矿物材料表征技术:Ⅱ.多孔材料的孔隙结构[J].矿物岩石地球化学通报,2006,25(4):362-368.YANG Kan,LU Xiancai,LIU Xiandong,et al.Characterization techniqueⅡof mineral material based on probe gas adsorption isotherm:Nano-pore structure of porous material[J].Bulletin of Mineralogy,Petrology and Geochemistry,2006,25(4):362-368.
[4]CLARKSON C R,SOLANO N,BUSTIN R M.Pore structure characterization of north American shale gas reservoirs using USANS/SANS,gas adsorption,and mercury intrusion[J].Fuel,2013,103:606-616.
[5]KUILA U,PRASAD M.Specific surface area and pore-size distribution in clays and shales[J].Geophysical Prospecting,2013,61(2):341-362.
[6]耿一凯,金振奎,赵建华,等.页岩储层孔隙类型控制因素研究:以川东焦石坝地区龙马溪组为例[J].石油实验地质,2017,39(1):71-78.GENG Yikai,JIN Zhenkui,ZHAO Jianhua,et al.Controlling factors of pore types in shale reservoirs:A case study from the Longmaxi Formation in Jiaoshiba area,eastern Sichuan Basin[J].Petroleum Geology&Experiment,2017,39(1):71-78.
[7]SHENG Mao,LI Gensheng,TIAN Shouceng,et al.A fractal permeability model for shale matrix with multi-scale porous structure[J].Fractals-Complex Geometry,Patterns&Scaling in Nature&Society,2016,24(1):1-11.
[8]MA Yong,PAN Zhejun,ZHONG Ningning,et al.Experimental study of anisotropic gas permeability and its relationship with fracture structure of Longmaxi Shales,Sichuan Basin,China[J].Fuel,2016,180:106-115.
[9]尉鹏飞,张金川,隆帅,等.四川盆地及周缘地区龙马溪组页岩微观孔隙结构及其发育主控因素[J].中国石油勘探,2016,21(5):42-51.WEI Pengfei,ZHANG Jinchuan,LONG Shuai,et al.Characteristics and controlling factors of microscopic pore structure of Longmaxi Formation in Sichuan Basin and its periphery[J].China Petroleum Exploration,2016,21(5):42-51.
[10]黄璞,姜振学,程礼军,等.川东北牛蹄塘组页岩孔隙结构特征及其控制因素[J].大庆石油地质与开发,2016,35(5):156-162.HUANG Pu,JIANG Zhenxue,CHENG Lijun,et al.Pore structural characteristics and their controlling factors of Niutitang-Formation shale in Northeast Sichuan Basin[J].Petroleum Geology&Oilfield Development in Daqing,2016,35(5):156-162.
[11]曹涛涛,宋之光.页岩有机质特征对有机孔发育及储层的影响[J].特种油气藏,2016,23(4):7-13.CAO Taotao,SONG Zhiguang.Effects of organic matter properties on organic pore development and reservoir[J].Special Oil&Gas Reservoirs,2016,23(4):7-13.
[12]ZHU Xiaojun,CAI Jingong,WANG Xuejun,et al.Effects of organic components on the relationships between specific surface areas and organic matter in mudrocks[J].International Journal of Coal Geology,2014,133:24-34.
[13]曹涛涛,宋之光,王思波,等.不同页岩及干酪根比表面积和孔隙结构的比较研究[J].中国科学:地球科学,2015,45(2):139-151.CAO Taotao,SONG Zhiguang,WANG Sibo,et al.A comparative study of the specific surface area and pore structure of different shales and their kerogens[J].Science China:Earth Sciences,2015,45(2):139-151.
[14]LOUCKS R G,REED R M,RUPPEL S C,et al.Morphology,genesis,and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale[J].Journal of Sedimentary Research,2009,79(11/12):848-861.
[15]CURTIS M E,CARDOTT B J,SONDERGELD C H,et al.Development of organic porosity in the Woodford Shale with increasing thermal maturity[J].International Journal of Coal Geology,2012,103:26-31.
[16]CHEN Ji,XIAO Xianming.Evolution of nanoporosity in organicrich shales during thermal maturation[J].Fuel,2014,129:173-181.
[17]田华,张水昌,柳少波,等.X射线小角散射法研究页岩成熟演化过程中孔隙特征[J].石油实验地质,2016,38(1):135-140,146.TIAN Hua,ZHANG Shuichang,LIU Shaobo,et al.Evolution of pores in shale during thermal maturation using Small Angle X-ray Scattering(SAXS)[J].Petroleum Geology&Experiment,2016,38(1):135-140,146.
[18]郭秋麟,陈晓明,宋焕琪,等.泥页岩埋藏过程孔隙度演化与预测模型探讨[J].天然气地球科学,2013,24(3):439-449.GUO Qiulin,CHEN Xiaoming,SONG Huanqi,et al.Evolution and models of shale porosity during burial process[J].Natural Gas Geoscience,2013,24(3):439-449.
[19]SCHMITT M,FERNANDES C P,DA CUNHA NETO J A,et al.Characterization of pore systems in seal rocks using Nitrogen Gas Adsorption combined with Mercury Injection Capillary Pressure techniques[J].Marine and Petroleum Geology,2013,39(1):138-149.
[20]孙焕泉.济阳坳陷页岩油勘探实践与认识[J].中国石油勘探,2017,22(4):1-14.SUN Huanquan.Exploration practice and cognitions of shale oil in Jiyang depression[J].China Petroleum Exploration,2017,22(4):1-14.
[21]曹涛涛,宋之光,刘光祥,等.氮气吸附法-压汞法分析页岩孔隙、分形特征及其影响因素[J].油气地质与采收率,2016,23(2):1-8.CAO Taotao,SONG Zhiguang,LIU Guangxiang,et al.Characteristics of shale pores,fractal dimension and their controlling factors determined by nitrogen adsorption and mercury injection methods[J].Petroleum Geology and Recovery Efficiency,2016,23(2):1-8.
[22]滕建彬.东营凹陷利页1井泥页岩中白云石成因及层序界面意义[J].油气地质与采收率,2018,25(2):1-7,36.TENG Jianbin.Genesis of dolomite in shale drilled by Well Liye1in Dongying Sag and its significance on sequence boundary indication[J].Petroleum Geology and Recovery Efficiency,2018,25(2):1-7,36.
[23]曾翔,蔡进功,董哲,等.泥页岩沉积特征与生烃能力--以东营凹陷沙河街组三段中亚段-沙河街组四段上亚段为例[J].石油学报,2017,38(1):31-43.ZENG Xiang,CAI Jingong,DONG Zhe,et al.Sedimentary characteristics and hydrocarbon generation potential of mudstone and shale:a case study of Middle Submember of Member3 and Upper Submember of Member4 in Shahejie Formation in Dongying Sag[J].Acta Petrolei Sinica,2017,38(1):31-43.
[24]赵迪斐,郭英海,杨玉娟,等.渝东南下志留统龙马溪组页岩储集层成岩作用及其对孔隙发育的影响[J].古地理学报,2016,18(5):843-856.ZHAO Difei,GUO Yinghai,YANG Yujuan,et al.Shale Reservoir diagenesis and its impacts on pores of the Lower Silurian Longmaxi Formation in southeastern Chongqing[J].Journal of Palaeogeography,2016,18(5):843-856.
[25]MATHIA E J,BOWEN L,THOMAS K M,et al.Evolution of porosity and pore types in organic-rich,calcareous,Lower Toarcian Posidonia Shale[J].Marine and Petroleum Geology,2016,75:117-139.
[26]高凤琳,宋岩,姜振学,等.黏土矿物对页岩储集空间及吸附能力的影响[J].特种油气藏,2017,24(3):1-8.GAO Fenglin,SONG Yan,JIANG Zhenxue,et al.Influence of clay minerals on shale storage space and adsorptive capacity[J].Special Oil and Gas Reservoirs,2017,24(3):1-8.
[27]JI Liming,ZHANG Tongwei,MILLIKEN K L,et al.Experimental investigation of main controls to methane adsorption in clay-rich rocks[J].Applied Geochemistry,2012,27(12):2 533-2 545.
[28]张晶巧,蔡进功,王学军,等.东营凹陷湖相烃源岩孢粉相特征及其意义[J].中南大学学报:自然科学版,2013,44(8):3 446-3 452.ZHANG Jingqiao,CAI Jingong,WANG Xuejun,et al.Palynofacies of lacustrine source rocks in Dongying Depression and its significance[J].Journal of Central South University:Science and Technology,2013,44(8):3 446-3 452.
[29]HACKLEY P C,CARDOTT B J.Application of organic petrography in North American Shale petroleum systems:A review[J].International Journal of Coal Geology,2016,163:8-51.
[30]CHALMERS G R L,BUSTIN R M.A multidisciplinary approach in determining the maceral(kerogen type)and mineralogical composition of Upper Cretaceous Eagle ford formation:impact on pore development and pore size distribution[J].International Journal of Coal Geology,2017,171:93-110.
[31]LI Jing,ZHOU Shixin,LI Yuanju,et al.Effect of organic matter on pore structure of mature lacustrine organic-rich shale:A case study of the Triassic Yanchang Shale,Ordos Basin,China[J].Fuel,2016,185:421-431.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |