黔西北海相、海陆过渡相页岩孔隙分形特征对比研究
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摘要
本文以黔西北地区海相页岩层系牛蹄塘组、龙马溪组及海陆过渡相页岩层系龙潭组为研究对象,在孔隙特征分析和低温氮气吸附-脱附实验的基础上,对比研究深海陆棚相、浅海陆棚相以及潮坪-泻湖相泥页岩的孔隙分形维数特征。结果显示:深海陆棚相泥页岩分形维数D1适中,分形维数D2较大;浅水陆棚相分形维数D1偏小,分形维数D2适中;潮坪-泻湖相分形维数D1、分形维数D2均较大。通过将分形维数D1、D2与主要地质参数进行相关关系研究认为:D1能够较好地区别各种沉积相孔隙结构的整体特征,能够表征泥页岩的均质性、孔隙体积、吸附能力等宏观特征,D2则能够较好表征泥页岩结构复杂程度等微观特征。综合研究成果认为:浅海陆棚相泥页岩岩石均质性较好,吸附能力一般,微孔不很发育,不利于页岩气富集,资源潜力较小;潮坪-泻湖相泥页岩岩石非均质性强,吸附能力强,微孔发育,有利于游离态、吸附态页岩气富集,孔隙结构复杂,但开采难度最大;深海陆棚相泥页岩均质性较好,吸附能力适中,微孔发育,有利于游离态页岩气富集,但孔隙结构复杂,开采难度偏大。深海陆棚相为目前研究价值最高、经济开发潜力最高的层系。
The objects of this study are marine shale of Niutitang and Longmaxi Formations and marine-continental transitional shale of Longtan Formation in Northwest Guizhou. A comparative study on fractal characteristics( D1 and D2) of pore among deep-sea,shallow-sea shelf and tidal flat-lagoon shale is made based on low temperature nitrogen adsorption desorption experiments. The results show that the deep-sea shelf shale has moderate D1,large D2; shallow-sea shelf shale has low D1,moderate D2; tidal flat-lagoon shale has high D1 and D2. Correlating these fractal characteristics with the main geological parameters suggests that D1 can describe the difference of pore structure characteristics in different sedimentary facies better while D2 can characterize the microscopic complexity of shale. A comprehensive analysis shows that the shallow-sea shelf shale has low heterogeneity,normal adsorption capacity,rudimentary microporous,low potential of shale gas. Tidal flat-lagoon shale has high heterogeneity,strong adsorption capacity,and is rich in microporous,conducive to the preservation of free and adsorption shale gas,but difficult to develop. Deep-sea shale has low heterogeneity,normal adsorption capacity,rich in microporous,conducive to the preservation of free and adsorption shale gas,but its pore structure is complex,not very easy to exploit. In sum,the deep-sea shelf shale has the highest value of study as well as the highest economic development potential among the three shale intervals in northwest Guizhou.
The objects of this study are marine shale of Niutitang and Longmaxi Formations and marine-continental transitional shale of Longtan Formation in Northwest Guizhou. A comparative study on fractal characteristics( D1 and D2) of pore among deep-sea,shallow-sea shelf and tidal flat-lagoon shale is made based on low temperature nitrogen adsorption desorption experiments. The results show that the deep-sea shelf shale has moderate D1,large D2; shallow-sea shelf shale has low D1,moderate D2; tidal flat-lagoon shale has high D1 and D2. Correlating these fractal characteristics with the main geological parameters suggests that D1 can describe the difference of pore structure characteristics in different sedimentary facies better while D2 can characterize the microscopic complexity of shale. A comprehensive analysis shows that the shallow-sea shelf shale has low heterogeneity,normal adsorption capacity,rudimentary microporous,low potential of shale gas. Tidal flat-lagoon shale has high heterogeneity,strong adsorption capacity,and is rich in microporous,conducive to the preservation of free and adsorption shale gas,but difficult to develop. Deep-sea shale has low heterogeneity,normal adsorption capacity,rich in microporous,conducive to the preservation of free and adsorption shale gas,but its pore structure is complex,not very easy to exploit. In sum,the deep-sea shelf shale has the highest value of study as well as the highest economic development potential among the three shale intervals in northwest Guizhou.
引文
Cao Taotao,Song Zhiguang,Luo Houyong,Zhou Yuanyuan,Wang Sibo.2016.Pore system characteristics of Permian transitional shale reservoir in the Lower Yangtze region,China[J].Natural Gas Geoscience,(27):1332-1345(in Chinese with English abstract)．
Chen Gengsheng,Dong Dazhong,Wang Shiqian,Wang Lansheng.2004.A preliminary study on accumulation mechanism and enrichment pattern of shale gas[J].Natural Gas Industry,24(7):15-18(in Chinese with English abstract)．
Chen Shangbin,Zhu Yanming,Wang Hongyan,Liu Honglin,Wei Wei,Fang Junhua.2012.Structure characteristics and accumulation significance of nanopores in Longmaxi shale gas reservoir in the southern Sichuan Basin[J].Journal of China Coal Society,37(4):507-510(in Chinese with English abstract)．
Chen Wenlin,Zhou Wen,Luo Ping,Deng Hucheng,Li Qin,Shan Rui,Qi Minghui.2013.Analysis of the shale gas reservoir in the Lower Silurian Longmaxi Formation,Changxin 1 well,southeast Sichuan Basin,China[J].Acta Petrologica Sinica,29(3):1073-1086(in Chinese with English abstract)．
Dong Dazhong,Zou Caineng,Yang Ye,Wang Yuman,Li Xinjing,Chen Gengsheng,Wang Shiqian,Lv Zonggang,Huang Yongbin.2012.Progress and prospects of shale gas exploration and development in China[J].Acta Petrolei Sinica,33(S1):107-114(in Chinese with English abstract)．
Jiang Fujie,Pang Xiongqi,Ouyang Xuecheng,Guo Jigang,Jin Cong,Huo Zhipeng,Wang Qin.2012.The main progress and problems of shale gas study and the potential prediction of shale gas exploration[J].Earth Science Frontiers,19(2):198-211(in Chinese with English abstract)．
Jiang Shengling,Li Bo,Peng Chuansheng,Hu Xiaolan,Hong Keyan,Zhu Lianglang.2018.Characteristics and gas content of Wufeng-Longmaxi Formation shale in the well LD2 of the Laifeng-Xianfeng block[J].Geology and Exploration,54(1):203-210(in Chinese with English abstract)．
Li Yuxi,Qiao Dewu,Jiang Wenli,Zhang Chunhe.2011.Gas content of gas-bearing shale and its geological evaluation summary[J].Geological Bulletin of China,30(2/3):308-317(in Chinese with English abstract)．
Long Pengyu,Zhang Jinchuan,Tang Xuan,Nie Haikuan,Liu Zhujiang,Han Shuangbiao,Zhu Liangliang.2011.Feature of muddy shale fissure and its effect for shale gas exploration and development[J].Natural Gas Geoscience,22(3):525-532(in Chinese with English abstract)．
Nie Haikuang,Zhang Jinchuan,Li Yuxi.2011.Accumulation conditions of the Lower Cambrian shale gas in the Sichuan Basin and its periphery[J].Acta Petrolei Sinica,32(6):959-967(in Chinese with English abstract)．
Pfeiferper P,Avnir D.1983.Chemistry nonintegral dimensions between two and three[J].J.Chem.Phys.,79(7):3286-3296．
Sing K S W.1995.Evaluation of the fractal dimension from a single adsorption isotherm[J].Langmuir,11:2316-2317
Sun Quanhong.2014.Forming condition and distribution prediction of shale gas of Longtan Formation in northwest Guizhou[J].Beijing:China University of Geoscience(Beijing):9-12(in Chinese with English abstract)．
Wang Lingxia,Luo Sha,Wang Ran,Deng Ende,Shi Fulun.2017.Fractal characteristics of shale pore from the marine-terrigenous facies Longtan Formation in northern Guizhou[J].Science Technology and Engineering,17(29):187-192(in Chinese with English abstract)．
Wang Shufang,Zou Caineng,Dong Dazhong,Wang Yuman,Huang Jinliang,Guo Shaojie.2014.Biogenic silica of organic-rich shale in Sichuan Basin and its significance for shale gas[J].Acta Scientiarum Naturalium Universitatis Pekinensis,50(3):476-486(in Chinese with English abstract)．
Wang Yuman,Dong Dazhong,Cheng Xiangzhi,Huang Jinliang,Wang Shufang,Wang Shiqian.2014.Electric property evidences of the carbonification of organic matters in marine shales and its geologic significance:A case of the Lower Cambrian Qiongzhusi shale in southern Sichuan Basin[J].Natural Gas Industry,34(8):1-7(in Chinese with English abstract)．
Xiong Jian,Liu Xiangjun,Liang Lixi,Wu Tao.2015.On the differences of reservoir characteristics of the upper and the lower Longmaxi Formation shale in the Changning region of Sichuan Basin[J].Journal of Northwest University(Natural Science Edition),45(4):623-630(in Chinese with English abstract)．
Xue Bing,Zhang Jinchuan,Tang Xua,Yang Chao,Chen qian,Man Xiangjie,Dang Wei.2015.Characteristics of microscopic pore and gas accumulation on shale in Longmaxi Formation,northwest Guizhou[J].Acta Petrolei Sinica,36(2):138-149,173(in Chinese with English abstract)．
Yang Chao,Zhang Jinchuan,Tang Xuan.2013.Microscopic pore types and its impact on the storage and permeability of continental shale gas,Ordos Basin[J].Earth Science Frontiers,20(4):240-250(in Chinese with English abstract)．
Yuan Kun,Fang Xinxin,Lin Tuo,Bao Shujing,Shi Dishi,Zhang Cong.2017.Geochemical featuresand sedimentary conditions of MiddleDevonian shale in the northwestern central-Guangxi depression[J].Geology and Exploration,53(1):179-186(in Chinese with English abstract)．
Zhang Jinchuan,Jin Zhijun,Yuan Mingsheng.2004.Reservoiring Mechanism of shale gas and its distribution[J].Natural Gas Industry,24(7):15-18(in Chinese with English abstract)．
曹涛涛，宋之光，罗厚勇，周圆圆，王思波．2016．下扬子地区二叠系海陆过渡相页岩孔隙体系特征[J]．天然气地球科学，27(7):1332-1345．
陈更生，董大忠，王世谦，王兰生．2009．页岩气藏形成机理与富集规律初探[J]．天然气工业，29(5):17-21．
陈尚斌，朱炎铭，王红岩，刘洪林，魏伟，方俊华．2012．川南龙马溪组页岩气储层纳米孔隙结构特征及其成藏意义[J]．煤炭学报，37(4):507-510．
陈文玲，周文，罗平，邓虎成，李沁，单蕊，戚明辉．2013．四川盆地长芯1井下志留统龙马溪组页岩气储层特征研究[J]．岩石学报，29(3):1073-1086．
董大忠，邹才能，杨桦，王玉满，李新景，陈更生，王世谦，吕宗刚，黄勇斌．2012．中国页岩气勘探开发进展与发展前景[J]．石油学报，33(S1):107-114．
姜福杰，庞雄奇，欧阳学成，郭继刚，金聪，霍志鹏，王庆．2012．世界页岩气研究概况及中国页岩气资源潜力分析[J]．地学前缘，19(2):198-211．
姜生玲，李博，彭传圣，胡晓兰，洪克岩，朱亮亮．2018．来凤咸丰区块LD2井五峰-龙马溪组页岩发育特征及含气性分析[J]．地质与勘探，54(1):203-210．
李玉喜，乔德武，姜文利，张春贺．2011．页岩气含气量和页岩气地质评价综述[J]．地质通报，30(2-3):308-317．
龙鹏宇，张金川，唐玄，聂海宽，刘珠江，韩双彪，朱亮亮．2011．泥页岩裂缝发育特征及其对页岩气勘探和开发的影响[J]．天然气地球科学，22(3):525-532．
聂海宽，张金川，李玉喜．2011．四川盆地及其周缘下寒武统页岩气聚集条件[J]．石油学报，32(6):959-967．
汪凌霞，罗沙，王冉，邓恩德，石富伦．2017．黔北地区海陆交互相龙潭组泥页岩孔隙分形特征[J]．科学技术与工程，17(29):187-192．
王淑芳，邹才能，董大忠，王玉满，黄金亮，郭召杰．2014．四川盆地富有机质页岩硅质生物成因及对页岩气开发的意义[J]．北京大学学报(自然科学版)，50(3):476-486．
王玉满，董大忠，程相志，黄金亮，王淑芳，王世谦．2014．海相页岩有机质碳化的电性证据及其地质意义---以四川盆地南部地区下寒武统筇竹寺组页岩为例[J]．天然气工业，34(8):1-7．
熊健，刘向君，梁利喜，吴涛．2015．四川盆地长宁地区龙马溪组上、下段页岩储层差异研究[J]．西北大学学报(自然科学版)，45(4):623-630．
薛冰，张金川，唐玄，杨超，陈前，满向杰，党伟．2015．黔西北龙马溪组页岩微观孔隙结构及储气特征[J]．石油学报，36(2):138-149,173．
杨超，张金川，唐玄．2013．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，20(4):240-250．
苑坤，方欣欣，林拓，包书景，石砥石，张聪．2017．桂中坳陷西北部中泥盆统页岩地球化学特征及沉积环境[J]．地质与勘探，53(1):179-186．
张金川，金之钧，袁明生．2004．页岩气成藏机理和分布[J]．天然气工业，24(7):15-18.
Chen Gengsheng,Dong Dazhong,Wang Shiqian,Wang Lansheng.2004.A preliminary study on accumulation mechanism and enrichment pattern of shale gas[J].Natural Gas Industry,24(7):15-18(in Chinese with English abstract)．
Chen Shangbin,Zhu Yanming,Wang Hongyan,Liu Honglin,Wei Wei,Fang Junhua.2012.Structure characteristics and accumulation significance of nanopores in Longmaxi shale gas reservoir in the southern Sichuan Basin[J].Journal of China Coal Society,37(4):507-510(in Chinese with English abstract)．
Chen Wenlin,Zhou Wen,Luo Ping,Deng Hucheng,Li Qin,Shan Rui,Qi Minghui.2013.Analysis of the shale gas reservoir in the Lower Silurian Longmaxi Formation,Changxin 1 well,southeast Sichuan Basin,China[J].Acta Petrologica Sinica,29(3):1073-1086(in Chinese with English abstract)．
Dong Dazhong,Zou Caineng,Yang Ye,Wang Yuman,Li Xinjing,Chen Gengsheng,Wang Shiqian,Lv Zonggang,Huang Yongbin.2012.Progress and prospects of shale gas exploration and development in China[J].Acta Petrolei Sinica,33(S1):107-114(in Chinese with English abstract)．
Jiang Fujie,Pang Xiongqi,Ouyang Xuecheng,Guo Jigang,Jin Cong,Huo Zhipeng,Wang Qin.2012.The main progress and problems of shale gas study and the potential prediction of shale gas exploration[J].Earth Science Frontiers,19(2):198-211(in Chinese with English abstract)．
Jiang Shengling,Li Bo,Peng Chuansheng,Hu Xiaolan,Hong Keyan,Zhu Lianglang.2018.Characteristics and gas content of Wufeng-Longmaxi Formation shale in the well LD2 of the Laifeng-Xianfeng block[J].Geology and Exploration,54(1):203-210(in Chinese with English abstract)．
Li Yuxi,Qiao Dewu,Jiang Wenli,Zhang Chunhe.2011.Gas content of gas-bearing shale and its geological evaluation summary[J].Geological Bulletin of China,30(2/3):308-317(in Chinese with English abstract)．
Long Pengyu,Zhang Jinchuan,Tang Xuan,Nie Haikuan,Liu Zhujiang,Han Shuangbiao,Zhu Liangliang.2011.Feature of muddy shale fissure and its effect for shale gas exploration and development[J].Natural Gas Geoscience,22(3):525-532(in Chinese with English abstract)．
Nie Haikuang,Zhang Jinchuan,Li Yuxi.2011.Accumulation conditions of the Lower Cambrian shale gas in the Sichuan Basin and its periphery[J].Acta Petrolei Sinica,32(6):959-967(in Chinese with English abstract)．
Pfeiferper P,Avnir D.1983.Chemistry nonintegral dimensions between two and three[J].J.Chem.Phys.,79(7):3286-3296．
Sing K S W.1995.Evaluation of the fractal dimension from a single adsorption isotherm[J].Langmuir,11:2316-2317
Sun Quanhong.2014.Forming condition and distribution prediction of shale gas of Longtan Formation in northwest Guizhou[J].Beijing:China University of Geoscience(Beijing):9-12(in Chinese with English abstract)．
Wang Lingxia,Luo Sha,Wang Ran,Deng Ende,Shi Fulun.2017.Fractal characteristics of shale pore from the marine-terrigenous facies Longtan Formation in northern Guizhou[J].Science Technology and Engineering,17(29):187-192(in Chinese with English abstract)．
Wang Shufang,Zou Caineng,Dong Dazhong,Wang Yuman,Huang Jinliang,Guo Shaojie.2014.Biogenic silica of organic-rich shale in Sichuan Basin and its significance for shale gas[J].Acta Scientiarum Naturalium Universitatis Pekinensis,50(3):476-486(in Chinese with English abstract)．
Wang Yuman,Dong Dazhong,Cheng Xiangzhi,Huang Jinliang,Wang Shufang,Wang Shiqian.2014.Electric property evidences of the carbonification of organic matters in marine shales and its geologic significance:A case of the Lower Cambrian Qiongzhusi shale in southern Sichuan Basin[J].Natural Gas Industry,34(8):1-7(in Chinese with English abstract)．
Xiong Jian,Liu Xiangjun,Liang Lixi,Wu Tao.2015.On the differences of reservoir characteristics of the upper and the lower Longmaxi Formation shale in the Changning region of Sichuan Basin[J].Journal of Northwest University(Natural Science Edition),45(4):623-630(in Chinese with English abstract)．
Xue Bing,Zhang Jinchuan,Tang Xua,Yang Chao,Chen qian,Man Xiangjie,Dang Wei.2015.Characteristics of microscopic pore and gas accumulation on shale in Longmaxi Formation,northwest Guizhou[J].Acta Petrolei Sinica,36(2):138-149,173(in Chinese with English abstract)．
Yang Chao,Zhang Jinchuan,Tang Xuan.2013.Microscopic pore types and its impact on the storage and permeability of continental shale gas,Ordos Basin[J].Earth Science Frontiers,20(4):240-250(in Chinese with English abstract)．
Yuan Kun,Fang Xinxin,Lin Tuo,Bao Shujing,Shi Dishi,Zhang Cong.2017.Geochemical featuresand sedimentary conditions of MiddleDevonian shale in the northwestern central-Guangxi depression[J].Geology and Exploration,53(1):179-186(in Chinese with English abstract)．
Zhang Jinchuan,Jin Zhijun,Yuan Mingsheng.2004.Reservoiring Mechanism of shale gas and its distribution[J].Natural Gas Industry,24(7):15-18(in Chinese with English abstract)．
曹涛涛，宋之光，罗厚勇，周圆圆，王思波．2016．下扬子地区二叠系海陆过渡相页岩孔隙体系特征[J]．天然气地球科学，27(7):1332-1345．
陈更生，董大忠，王世谦，王兰生．2009．页岩气藏形成机理与富集规律初探[J]．天然气工业，29(5):17-21．
陈尚斌，朱炎铭，王红岩，刘洪林，魏伟，方俊华．2012．川南龙马溪组页岩气储层纳米孔隙结构特征及其成藏意义[J]．煤炭学报，37(4):507-510．
陈文玲，周文，罗平，邓虎成，李沁，单蕊，戚明辉．2013．四川盆地长芯1井下志留统龙马溪组页岩气储层特征研究[J]．岩石学报，29(3):1073-1086．
董大忠，邹才能，杨桦，王玉满，李新景，陈更生，王世谦，吕宗刚，黄勇斌．2012．中国页岩气勘探开发进展与发展前景[J]．石油学报，33(S1):107-114．
姜福杰，庞雄奇，欧阳学成，郭继刚，金聪，霍志鹏，王庆．2012．世界页岩气研究概况及中国页岩气资源潜力分析[J]．地学前缘，19(2):198-211．
姜生玲，李博，彭传圣，胡晓兰，洪克岩，朱亮亮．2018．来凤咸丰区块LD2井五峰-龙马溪组页岩发育特征及含气性分析[J]．地质与勘探，54(1):203-210．
李玉喜，乔德武，姜文利，张春贺．2011．页岩气含气量和页岩气地质评价综述[J]．地质通报，30(2-3):308-317．
龙鹏宇，张金川，唐玄，聂海宽，刘珠江，韩双彪，朱亮亮．2011．泥页岩裂缝发育特征及其对页岩气勘探和开发的影响[J]．天然气地球科学，22(3):525-532．
聂海宽，张金川，李玉喜．2011．四川盆地及其周缘下寒武统页岩气聚集条件[J]．石油学报，32(6):959-967．
汪凌霞，罗沙，王冉，邓恩德，石富伦．2017．黔北地区海陆交互相龙潭组泥页岩孔隙分形特征[J]．科学技术与工程，17(29):187-192．
王淑芳，邹才能，董大忠，王玉满，黄金亮，郭召杰．2014．四川盆地富有机质页岩硅质生物成因及对页岩气开发的意义[J]．北京大学学报(自然科学版)，50(3):476-486．
王玉满，董大忠，程相志，黄金亮，王淑芳，王世谦．2014．海相页岩有机质碳化的电性证据及其地质意义---以四川盆地南部地区下寒武统筇竹寺组页岩为例[J]．天然气工业，34(8):1-7．
熊健，刘向君，梁利喜，吴涛．2015．四川盆地长宁地区龙马溪组上、下段页岩储层差异研究[J]．西北大学学报(自然科学版)，45(4):623-630．
薛冰，张金川，唐玄，杨超，陈前，满向杰，党伟．2015．黔西北龙马溪组页岩微观孔隙结构及储气特征[J]．石油学报，36(2):138-149,173．
杨超，张金川，唐玄．2013．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，20(4):240-250．
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