东营凹陷沙河街组页岩微观孔隙多重分形特征
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摘要
孔体积、孔径分布和比表面积的非均质性刻画是页岩油勘探评价中的一项重要工作。采用多重分形理论,对东营凹陷沙河街组页岩低温氮气吸附实验数据进行研究,探讨页岩孔隙多重分形特征、分形参数与孔隙参数和页岩矿物组成之间的关系。结果表明:东营凹陷沙河街组页岩孔径分布存在明显的多重分形特征,孔径分布的非均质性主要与孔隙比表面积有关;Hurst指数越大,渗透率越大。除多重分形谱的右半偏参数和左右半偏参数之差与其他分形参数相关性较差外,多重分形参数之间表现出很强的相关性,信息维数、关联维数均与Hurst指数呈正相关关系,而与Hausdorff维数、左半偏参数和多重分形谱峰宽等其他参数均呈负相关关系;信息维数、关联维数和Hurst指数等多重分形参数均与比表面积、孔体积呈正相关关系,除右半偏参数外,其他多重分形参数与比表面积、孔体积呈负相关关系;多重分形参数与页岩矿物组成无明显相关性。
Characterizing the heterogeneity of pore volume,pore size distribution,and specific surface area is an important task in the evaluation of shale oil exploration. In this study,the multifractal theory was adopted to study the experimental data of low temperature N_2 adsorption of Shahejie Formation shale in Dongying Sag. Relationships among multifractal characteristics,fractal parameters,pore parameters and shale mineral composition were discussed. Results show that:the pore size distribution of Shahejie Formation shale in Dongying Sag is characterized by multiple fractal features,and the heterogeneity of the pore size distribution is mainly related to the specific surface area of the pore. The larger the Hurst index indicates the greater penetration rate. There are strong positive or negative correlations among the multifractal parameters except the difference between the right semi-biased parameter and the left semi-biased parameter of multifractal spectrum.Information dimension and correlation dimension are positively related to Hurst index and negatively to Hausdorff dimension,left semi-biased parameter and multifractal spectral peak width,while multi-fractal parameters,such as information dimension and correlation dimension,are positively correlated with the specific surface area and pore volume,and the other multifractal parameters are negatively correlated with the specific surface area and pore volume(except for the right semibias parameter). There is no obvious correlation between multi-fractal parameters and rock mineral composition.
Characterizing the heterogeneity of pore volume,pore size distribution,and specific surface area is an important task in the evaluation of shale oil exploration. In this study,the multifractal theory was adopted to study the experimental data of low temperature N_2 adsorption of Shahejie Formation shale in Dongying Sag. Relationships among multifractal characteristics,fractal parameters,pore parameters and shale mineral composition were discussed. Results show that:the pore size distribution of Shahejie Formation shale in Dongying Sag is characterized by multiple fractal features,and the heterogeneity of the pore size distribution is mainly related to the specific surface area of the pore. The larger the Hurst index indicates the greater penetration rate. There are strong positive or negative correlations among the multifractal parameters except the difference between the right semi-biased parameter and the left semi-biased parameter of multifractal spectrum.Information dimension and correlation dimension are positively related to Hurst index and negatively to Hausdorff dimension,left semi-biased parameter and multifractal spectral peak width,while multi-fractal parameters,such as information dimension and correlation dimension,are positively correlated with the specific surface area and pore volume,and the other multifractal parameters are negatively correlated with the specific surface area and pore volume(except for the right semibias parameter). There is no obvious correlation between multi-fractal parameters and rock mineral composition.
引文
[1]宋国奇,徐兴友,李政,等.济阳坳陷古近系陆相页岩油产量的影响因素[J].石油与天然气地质,2015,36(3):463-471.SONG Guoqi,XU Xingyou,LI Zheng,et al.Factors controlling oil production from Paleogene shale in Jiyang depression[J].Oil&Gas Geology,2015,36(3):463-471.
[2]李政,王秀红,朱日房,等.济阳坳陷沙三下亚段和沙四上亚段页岩油地球化学评价[J].新疆石油地质,2015,36(5):510-514.LI Zheng,WANG Xiuhong,ZHU Rifang,et al.Geochemical evaluation of shale oil in lower Es3and upper Es4in Jiyang Depression[J].Xinjiang Petroleum Geology,2015,36(5):510-514.
[3]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.
[4]JARVIE D M.Shale resource systems for oil and gas:Part2-Shale oil resource systems[R].AAPG Memoir,2012,97:89-119.
[5]WANG Min,LIU Yang,LU Shuangfang.Classification and oil system of continental shale:Es3 L,sub-member of Bonan sag,Jiyang depression,Eastern China[J].Arabian Journal of Geosciences,2016,9(3):178.
[6]WANG Min,LU Shuangfang,WANG Zhiwei,et al.Reservoir characteristics of lacustrine shale and marine shale:Examples from the Songliao basin,Bohai Bay basin and Qiannan depression[J].Acta Geologica Sinica:English Edition,2016,90(3):1 024-1 038.
[7]李玉丹,董平川,张荷,等.基于分形理论的页岩基质表观渗透率研究[J].油气地质与采收率,2017,24(1):92-99,105.LI Yudan,DONG Pingchuan,ZHANG He,et al.Analysis on apparent permeability of shale matrix based on fractal theory[J].Petroleum Geology and Recovery Efficiency,2017,24(1):92-99,105.
[8]黄睿哲,姜振学,高之业,等.页岩储层组构特征对自发渗吸的影响[J].油气地质与采收率,2017,24(1):111-115.HUANG Ruizhe,JIANG Zhenxue,GAO Zhiye,et al.Effect of composition and structural characteristics on spontaneous imbibition of shale reservoir[J].Petroleum Geology and Recovery Efficiency,2017,24(1):111-115.
[9]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.
[10]梁洪彬,向祖平,肖前华,等.页岩气吸附模型对比分析与应用[J].大庆石油地质与开发,2017,36(6):159-167.LIANG Hongbin,XIANG Zuping,XIAO Qianhua,et al.Comparative analysis and application of the shale gas absorbing model[J].Petroleum Geology&Oilfield Development in Daqing,2017,36(6):159-167.
[11]黄振凯,陈建平,王义军,等.利用气体吸附法和压汞法研究烃源岩孔隙分布特征--以松辽盆地白垩系青山口组一段为例[J].地质论评,2013,59(3):587-595.HUANG Zhenkai,CHEN Jianping,WANG Yijun,et al.Pore distribution of source rocks as revealed by gas adsorption and mercury injection methods:A case study on the first member of the Cretaceous Qingshankou Formation in the Songliao Basin[J].Geological Review,2013,59(3):587-595.
[12]朱梦月,秦启荣,李虎,等.川东南DS地区龙马溪组页岩裂缝发育特征及主控因素[J].油气地质与采收率,2017,24(6):54-59.ZHU Mengyue,QIN Qirong,LI Hu,et al.Development characteristics and controlling factors of shale fractures in the Longmaxi Formation in DS area,southeast Sichuan[J].Petroleum Geology and Recovery Efficiency,2017,24(6):54-59.
[13]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.
[14]YANG Feng,NING Zhengfu,LIU Huiqing.Fractal characteristics of shales from a shale gas reservoir in the Sichuan Basin,China[J].Fuel,2014,115:378-384.
[15]WANG Min,XUE Haitao,TIAN Shansi,et al.Fractal characteristics of upper Cretaceous lacustrine shale from the Songliao Basin,NE China[J].Marine and Petroleum Geology,2015,67:144-153.
[16]LI Kewen.More general capillary pressure and relative permeability models from fractal geometry[J].Journal of Contaminant Hydrology,2010,111(1):13-24.
[17]LIU Kouqi,OSTADHASSAN Mehdi,ZOU Jie,et al.Multifractal analysis of gas adsorption isotherms for pore structure characterization of the Bakken Shale[J].Fuel,2018,219:296-311.
[18]PAZ-FERREIRO J,DA LUZ L R Q P,LADO M,et al.Specific surface area and multifractal parameters of associated nitrogen adsorption and desorption isotherms in Soils from Santa Catarina,Brazil[J].Vadose Zone Journal,2013,12(3):185-192.
[19]PAZ-FERREIRO J,WILSON M,VIDAL-VáZQUEZ E.Multifractal description of nitrogen adsorption isotherms[J].Vadose Zone Journal,2009,8(1):209-219.
[20]VIDAL-VáZQUEZ E,PAZ-FERREIRO Jorge.Multifractal characteristics of nitrogen adsorption isotherms from tropical soils[J].Soil Science,2012,177(2):120-130.
[21]李彤.多重分形原理及其若干应用[D].北京:北京交通大学,2008.LI Tong.Multifractal principle and several applications[D].Beijing:Beijing Jiaotong University,2008.
[22]孙哲,王一博,刘国华,等.基于多重分形理论的多年冻土区高寒草甸退化过程中土壤粒径分析[J].冰川冻土,2015,37(4):980-990.SUN Zhe,WANG Yibo,LIU Guohua,et al.Heterogeneity analysis of soil particle size distribution in the process of degradation of alpine meadow in the permafrost regions based on multifractal theory[J].Journal of Glaciology and Geocryology,2015,37(4):980-990.
[23]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑地球科学,2003,33(11):1 025-1 036.LIN Changsong,ZHENG Herong,REN Jianye,et al.Control of Early Tertiary sedimentary fault on sedimentary filling in Dongying and Zhanhua sag,Bohai Bay Basin[J].Science in China:Series D Earth Sciences,2003,33(11):1 025-1 036.
[24]邬立言,张振苓,李斌,等.岩石热解分析:GB/T 18602-2012[S].北京:中国标准出版社,2013:1-12.WU Liyan,ZHANG Zhenling,LI Bin,et al.Rock pyrolysis analysis:GB/T 18602-2012[S].Beijing:Standards Press of China,2013:1-12.
[25]徐冠军,高瑛,董淑红,等.沉积岩中总有机碳的测定:GB/T19145-2003[S].北京:中国标准出版社,2003:1-4.XU Guanjun,GAO Ying,DONG Shuhong,et al.Determination of total organic carbon in sedimentary rock:GB/T 19145-2003[S].Beijing:Standards Press of China,2003:1-4.
[26]曾理,王兰生,许怀先,等.沉积岩中黏土矿物和常见黏土矿物X衍射分析方法:SY/T 5163-2010[S].北京:石油工业出版社,2010.ZENG Li,WANG Lansheng,XU Huaixian,et al.Analysis method for clay minerals and ordinary non-clay minerals in sedimentary rocks by the X-ray diffraction:SY/T 5163-2010[S].Beijing:Petroleum Industry Press,2010.
[27]CHHABRA A,JENSEN R V.Direct determination of the f(α)singularity spectrum[J].Physical Review Letters,1989,62(11):1 327-1 330.
[2]李政,王秀红,朱日房,等.济阳坳陷沙三下亚段和沙四上亚段页岩油地球化学评价[J].新疆石油地质,2015,36(5):510-514.LI Zheng,WANG Xiuhong,ZHU Rifang,et al.Geochemical evaluation of shale oil in lower Es3and upper Es4in Jiyang Depression[J].Xinjiang Petroleum Geology,2015,36(5):510-514.
[3]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.
[4]JARVIE D M.Shale resource systems for oil and gas:Part2-Shale oil resource systems[R].AAPG Memoir,2012,97:89-119.
[5]WANG Min,LIU Yang,LU Shuangfang.Classification and oil system of continental shale:Es3 L,sub-member of Bonan sag,Jiyang depression,Eastern China[J].Arabian Journal of Geosciences,2016,9(3):178.
[6]WANG Min,LU Shuangfang,WANG Zhiwei,et al.Reservoir characteristics of lacustrine shale and marine shale:Examples from the Songliao basin,Bohai Bay basin and Qiannan depression[J].Acta Geologica Sinica:English Edition,2016,90(3):1 024-1 038.
[7]李玉丹,董平川,张荷,等.基于分形理论的页岩基质表观渗透率研究[J].油气地质与采收率,2017,24(1):92-99,105.LI Yudan,DONG Pingchuan,ZHANG He,et al.Analysis on apparent permeability of shale matrix based on fractal theory[J].Petroleum Geology and Recovery Efficiency,2017,24(1):92-99,105.
[8]黄睿哲,姜振学,高之业,等.页岩储层组构特征对自发渗吸的影响[J].油气地质与采收率,2017,24(1):111-115.HUANG Ruizhe,JIANG Zhenxue,GAO Zhiye,et al.Effect of composition and structural characteristics on spontaneous imbibition of shale reservoir[J].Petroleum Geology and Recovery Efficiency,2017,24(1):111-115.
[9]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.
[10]梁洪彬,向祖平,肖前华,等.页岩气吸附模型对比分析与应用[J].大庆石油地质与开发,2017,36(6):159-167.LIANG Hongbin,XIANG Zuping,XIAO Qianhua,et al.Comparative analysis and application of the shale gas absorbing model[J].Petroleum Geology&Oilfield Development in Daqing,2017,36(6):159-167.
[11]黄振凯,陈建平,王义军,等.利用气体吸附法和压汞法研究烃源岩孔隙分布特征--以松辽盆地白垩系青山口组一段为例[J].地质论评,2013,59(3):587-595.HUANG Zhenkai,CHEN Jianping,WANG Yijun,et al.Pore distribution of source rocks as revealed by gas adsorption and mercury injection methods:A case study on the first member of the Cretaceous Qingshankou Formation in the Songliao Basin[J].Geological Review,2013,59(3):587-595.
[12]朱梦月,秦启荣,李虎,等.川东南DS地区龙马溪组页岩裂缝发育特征及主控因素[J].油气地质与采收率,2017,24(6):54-59.ZHU Mengyue,QIN Qirong,LI Hu,et al.Development characteristics and controlling factors of shale fractures in the Longmaxi Formation in DS area,southeast Sichuan[J].Petroleum Geology and Recovery Efficiency,2017,24(6):54-59.
[13]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.
[14]YANG Feng,NING Zhengfu,LIU Huiqing.Fractal characteristics of shales from a shale gas reservoir in the Sichuan Basin,China[J].Fuel,2014,115:378-384.
[15]WANG Min,XUE Haitao,TIAN Shansi,et al.Fractal characteristics of upper Cretaceous lacustrine shale from the Songliao Basin,NE China[J].Marine and Petroleum Geology,2015,67:144-153.
[16]LI Kewen.More general capillary pressure and relative permeability models from fractal geometry[J].Journal of Contaminant Hydrology,2010,111(1):13-24.
[17]LIU Kouqi,OSTADHASSAN Mehdi,ZOU Jie,et al.Multifractal analysis of gas adsorption isotherms for pore structure characterization of the Bakken Shale[J].Fuel,2018,219:296-311.
[18]PAZ-FERREIRO J,DA LUZ L R Q P,LADO M,et al.Specific surface area and multifractal parameters of associated nitrogen adsorption and desorption isotherms in Soils from Santa Catarina,Brazil[J].Vadose Zone Journal,2013,12(3):185-192.
[19]PAZ-FERREIRO J,WILSON M,VIDAL-VáZQUEZ E.Multifractal description of nitrogen adsorption isotherms[J].Vadose Zone Journal,2009,8(1):209-219.
[20]VIDAL-VáZQUEZ E,PAZ-FERREIRO Jorge.Multifractal characteristics of nitrogen adsorption isotherms from tropical soils[J].Soil Science,2012,177(2):120-130.
[21]李彤.多重分形原理及其若干应用[D].北京:北京交通大学,2008.LI Tong.Multifractal principle and several applications[D].Beijing:Beijing Jiaotong University,2008.
[22]孙哲,王一博,刘国华,等.基于多重分形理论的多年冻土区高寒草甸退化过程中土壤粒径分析[J].冰川冻土,2015,37(4):980-990.SUN Zhe,WANG Yibo,LIU Guohua,et al.Heterogeneity analysis of soil particle size distribution in the process of degradation of alpine meadow in the permafrost regions based on multifractal theory[J].Journal of Glaciology and Geocryology,2015,37(4):980-990.
[23]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑地球科学,2003,33(11):1 025-1 036.LIN Changsong,ZHENG Herong,REN Jianye,et al.Control of Early Tertiary sedimentary fault on sedimentary filling in Dongying and Zhanhua sag,Bohai Bay Basin[J].Science in China:Series D Earth Sciences,2003,33(11):1 025-1 036.
[24]邬立言,张振苓,李斌,等.岩石热解分析:GB/T 18602-2012[S].北京:中国标准出版社,2013:1-12.WU Liyan,ZHANG Zhenling,LI Bin,et al.Rock pyrolysis analysis:GB/T 18602-2012[S].Beijing:Standards Press of China,2013:1-12.
[25]徐冠军,高瑛,董淑红,等.沉积岩中总有机碳的测定:GB/T19145-2003[S].北京:中国标准出版社,2003:1-4.XU Guanjun,GAO Ying,DONG Shuhong,et al.Determination of total organic carbon in sedimentary rock:GB/T 19145-2003[S].Beijing:Standards Press of China,2003:1-4.
[26]曾理,王兰生,许怀先,等.沉积岩中黏土矿物和常见黏土矿物X衍射分析方法:SY/T 5163-2010[S].北京:石油工业出版社,2010.ZENG Li,WANG Lansheng,XU Huaixian,et al.Analysis method for clay minerals and ordinary non-clay minerals in sedimentary rocks by the X-ray diffraction:SY/T 5163-2010[S].Beijing:Petroleum Industry Press,2010.
[27]CHHABRA A,JENSEN R V.Direct determination of the f(α)singularity spectrum[J].Physical Review Letters,1989,62(11):1 327-1 330.
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