Volume 42 Issue 3
May  2020
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LIANG Feng, QIU Xunxi, DAI Yun, ZHANG Qin, LU Bin, CHEN Peng, MA Chao, QI Lin, HU Xi. Characteristics and main controls of nano-pores in the Lower Silurian Longmaxi shale, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(3): 451-458. doi: 10.11781/sysydz202003451
Citation: LIANG Feng, QIU Xunxi, DAI Yun, ZHANG Qin, LU Bin, CHEN Peng, MA Chao, QI Lin, HU Xi. Characteristics and main controls of nano-pores in the Lower Silurian Longmaxi shale, Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(3): 451-458. doi: 10.11781/sysydz202003451

Characteristics and main controls of nano-pores in the Lower Silurian Longmaxi shale, Sichuan Basin

doi: 10.11781/sysydz202003451
  • Received Date: 2020-03-01
  • Rev Recd Date: 2020-04-29
  • Publish Date: 2020-05-28
  • The Upper Ordovician Wufeng-Lower Silurian Longmaxi shale is the only yield layer of commercial deve-lopment of shale gas in China at present. However, there are significant differences in the production of individual shale gas wells in different areas of the Sichuan Basin and its periphery. This paper investigates those differences from the perspective of reservoir space. The pore development of 36 shale samples from the Lower Rhuddanian in 5 typical wells with different reservoir pressure in different tectonic areas in the Sichuan Basin was compared by applying, petromi-neralogical, structural geological and reservoir geological methods. The reservoir space in these shales is dominated by organic pores. With the increase of TOC content, the volumes of micropores (< 10 nm), mesopores (10~50 nm), macropores (>50 nm) and total pores in different structural regions show different trends, reflecting different stages of pore evolution. A preliminary organic pore development model of shale has been established. The extent of pore development in shale samples located in the overpressure area in the basin is obviously better than that in the structural transformation area of the basin margin. It is confirmed by experiments that the shale pores may be compacted under high pressure conditions, and the degree of compaction is closely related to the organic matter pore size, the rock mineral composition, the organic matter content, the domain structure conditions and the pressure coefficient. The areas affected by the weak tectonic movement and having a high pressure coefficient are favorable areas for pore development.

     

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  • [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. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201006003.htm

    ZOU Caineng, DONG Dazhong, WANG Shejiao, et al. Geological characteristics, formation mechanism and resource potential of shale gas in China[J]. Petroleum Exploration and Development, 2010, 37(6): 641-653. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201006003.htm
    [2]
    邹才能, 董大忠, 王玉满, 等. 中国页岩气特征、挑战及前景(一)[J]. 石油勘探与开发, 2015, 42(6): 689-701. doi: 10.11698/PED.2015.06.01

    ZOU Caineng, DONG Dazhong, WANG Yuman, et al. Shale gas in China: characteristics, challenges and prospects (I)[J]. Petroleum Exploration and Development, 2015, 42(6): 689-701. doi: 10.11698/PED.2015.06.01
    [3]
    黄金亮, 邹才能, 李建忠, 等. 川南下寒武统筇竹寺组页岩气形成条件及资源潜力[J]. 石油勘探与开发, 2012, 39(1): 69-75. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201201009.htm

    HUANG Jinliang, ZOU Caineng, LI Jianzhong, et al. Shale gas generation and potential of the Lower Cambrian Qiongzhusi Formation in southern Sichuan Basin, China[J]. Petroleum Exploration and Development, 2012, 39(1): 69-75. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201201009.htm
    [4]
    胡琳, 朱炎铭, 陈尚斌, 等. 中上扬子地区下寒武统筇竹寺组页岩气资源潜力分析[J]. 煤炭学报, 2012, 37(11): 1871-1877. doi: 10.13225/j.cnki.jccs.2012.11.003

    HU Lin, ZHU Yanming, CHEN Shangbin, et al. Resource potential analysis of shale gas in Lower Cambrian Qiongzhusi Formation in Middle & Upper Yangtze region[J]. Journal of China Coal Society, 2012, 37(11): 1871-1877. doi: 10.13225/j.cnki.jccs.2012.11.003
    [5]
    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. doi: 10.3787/j.issn.1000-0976.2014.02.003

    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. doi: 10.3787/j.issn.1000-0976.2014.02.003
    [6]
    杨平, 汪正江, 余谦, 等. 滇东北木杆向斜奥陶系五峰组-志留系龙马溪组页岩气资源潜力评价[J]. 石油实验地质, 2019, 41(5): 638-647. doi: 10.11781/sysydz201905638

    YANG Ping, WANG Zhengjiang, YU Qian, et al. Evaluation of shale gas potential in Ordovician Wufeng-Silurian Longmaxi formations, Mugan syncline, northeastern Yunnan[J]. Petroleum Geology & Experiment, 2019, 41(5): 638-647. doi: 10.11781/sysydz201905638
    [7]
    赵建华, 金之钧, 林畅松, 等. 上扬子地区下寒武统筇竹寺组页岩沉积环境[J]. 石油与天然气地质, 2019, 40(4): 701-715. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201904003.htm

    ZHAO Jianhua, JIN Zhijun, LIN Changsong, et al. Sedimentary environment of the Lower Cambrian Qiongzhusi Formation shale in the Upper Yangtze region[J]. Oil & Gas Geology, 2019, 40(4): 701-715. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201904003.htm
    [8]
    杨振恒, 翟常博, 邓模, 等. 彭水及邻区五峰-龙马溪组成烃生物特征及意义[J]. 油气藏评价与开发, 2019, 9(5): 40-44. doi: 10.3969/j.issn.2095-1426.2019.05.005

    YANG Zhenheng, ZHAI Changbo, DENG Mo, et al. Characteristics and significance of hydrocarbon-forming organisms of Wufeng-Longmaxi formation in Pengshui and its adjacent areas[J]. Reservoir Evaluation and Development, 2019, 9(5): 40-44. doi: 10.3969/j.issn.2095-1426.2019.05.005
    [9]
    陈旭, 樊隽轩, 张元动, 等. 五峰组及龙马溪组黑色页岩在扬子覆盖区内的划分与圈定[J]. 地层学杂志, 2015, 39(4): 351-358. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ201504001.htm

    CHEN Xu, FAN Junxuan, ZHANG Yuandong, et al. Subdivision and delineation of the Wufeng and Lungmachi black shales in the subsurface areas of the Yangtze platform[J]. Journal of Stratigraphy, 2015, 39(4): 351-358. https://www.cnki.com.cn/Article/CJFDTOTAL-DCXZ201504001.htm
    [10]
    邹才能, 董大忠, 王玉满, 等. 中国页岩气特征、挑战及前景(二)[J]. 石油勘探与开发, 2016, 43(2): 166-178. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201602003.htm

    ZOU Caineng, DONG Dazhong, WANG Yuman, et al. Shale gas in China: characteristics, challenges and prospects (II)[J]. Petroleum Exploration and Development, 2016, 43(2): 166-178. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201602003.htm
    [11]
    易积正, 王超. 四川盆地焦石坝地区龙马溪组海相页岩储层非均质性特征[J]. 石油实验地质, 2018, 40(1): 13-19. doi: 10.11781/sysydz201801013

    YI Jizheng, WANG Chao. Differential pore development characteristics in various shale lithofacies of Longmaxi Formation in Jiaoshiba area, Sichuan Basin[J]. Petroleum Geology & Experiment, 2018, 40(1): 13-19. doi: 10.11781/sysydz201801013
    [12]
    何顺, 秦启荣, 周吉羚, 等. 川东南DS地区龙马溪组页岩气形成及富集控制因素[J]. 特种油气藏, 2018, 25(6): 70-76. doi: 10.3969/j.issn.1006-6535.2018.06.013

    HE Shun, QIN Qirong, ZHOU JiLing, et al. Shale gas generation and enrichmentin the Longmaxi Formation of DS, southeast Sichuang[J]. Special Oil & Gas Reservoirs, 2018, 25(6): 70-76. doi: 10.3969/j.issn.1006-6535.2018.06.013
    [13]
    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. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201401003.htm

    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. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201401003.htm
    [14]
    梁峰, 拜文华, 邹才能, 等. 渝东北地区巫溪2井页岩气富集模式及勘探意义[J]. 石油勘探与开发, 2016, 43(3): 350-358. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201603005.htm

    LIANG Feng, BAI Wenhua, ZOU Caineng, et al. Shale gas enrichment pattern and exploration significance of well Wuxi-2 in northeast Chongqing, NE Sichuan Basin[J]. Petroleum Exploration and Development, 2016, 43(3): 350-358. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201603005.htm
    [15]
    ZOU Caineng, YANG Zhi, PAN Songqi, et al. Shale gas formation and occurrence in China: an overview of the current status and future potential[J]. Acta Geologica Sinica, 2016, 90(4): 1249-1283.
    [16]
    朱汉卿, 贾爱林, 位云生, 等. 昭通示范区龙马溪组页岩微观孔隙结构特征及吸附能力[J]. 油气地质与采收率, 2018, 25(4): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201804001.htm

    ZHU Hanqing, JIA Ailin, WEI Yunsheng, et al. Characteristics of microscopic pore structure and methane adsorption capacity of shale in the Longmaxi Formation in the Zhaotong area[J]. Petroleum Geology and Recovery Efficiency, 2018, 25(4): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201804001.htm
    [17]
    梁峰, 王红岩, 拜文华, 等. 川南地区五峰组-龙马溪组页岩笔石带对比及沉积特征[J]. 天然气工业, 2017, 37(7): 20-26. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201707006.htm

    LIANG Feng, WANG Hongyan, BAI Wenhua, et al. Graptolite correlation and sedimentary characteristics of Wufeng-Longmaxi shale in southern Sichuan Basin[J]. Natural Gas Industry, 2017, 37(7): 20-26. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201707006.htm
    [18]
    赵圣贤, 杨跃明, 张鉴, 等. 四川盆地下志留统龙马溪组页岩小层划分与储层精细对比[J]. 天然气地球科学, 2016, 27(3): 470-487. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201603011.htm

    ZHAO Shengxian, YANG Yueming, ZHANG Jian, et al. Micro-layers division and fine reservoirs contrast of Lower Silurian Longmaxi Formation shale, Sichuan Basin, SW China[J]. Natural Gas Geoscience, 2016, 27(3): 470-487. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201603011.htm
    [19]
    CHEN Lei, JIANG Zhenxue, LIU Keyu, et al. A combination of N2 and CO2adsorption to characterize nanopore structure of organic-rich Lower Silurian shale in the Upper Yangtze Platform, South China: implications for shale gas sorption capacity[J]. Acta Geologica Sinica, 2017, 91(4): 1380-1394.
    [20]
    李楚雄, 肖七林, 陈奇, 等. 页岩纳米级孔隙在有机质熟化过程中的演化特征及影响因素[J]. 石油实验地质, 2019, 41(6): 901-909. doi: 10.11781/sysydz201906901

    LI Chuxiong, XIAO Qilin, CHEN Qi, et al. Evolution characteristics and controls of shale nanopores during thermal maturation of organic matter[J]. Petroleum Geology & Experiment, 2019, 41(6): 901-909. doi: 10.11781/sysydz201906901
    [21]
    KLAVER J, DESBOIS G, LITTKE R, et al. BIB-SEM characte-rization of pore space morphology and distribution in postmature to overmature samples from the Haynesville and Bossier shales[J]. Marine and Petroleum Geology, 2015, 59: 451-466.
    [22]
    TANG Xuan, ZHANG Jinchuan, JIN Zhijun, et al. Experimental investigation of thermal maturation on shale reservoir properties from hydrous pyrolysis of Chang 7 shale, Ordos Basin[J]. Marine and Petroleum Geology, 2015, 64: 165-172.
    [23]
    申浩冉, 丁文龙, 谷阳, 等. 黔北凤冈地区龙马溪组页岩孔隙结构特征[J]. 断块油气田, 2019, 26(4): 480-485. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT201904016.htm

    SHEN Haoran, DING Wenlong, GU Yang, et al. Pore structure characteristics of Longmaxi Formation shale in Fenggang area, northern Guizhou[J]. Fault-Block Oil and Gas Field, 2019, 26(4): 480-485. https://www.cnki.com.cn/Article/CJFDTOTAL-DKYT201904016.htm
    [24]
    李玉喜, 聂海宽, 龙鹏宇. 我国富含有机质泥页岩发育特点与页岩气战略选区[J]. 天然气工业, 2009, 29(12): 115-118. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200912040.htm

    LI Yuxi, NIE Haikuan, LONG Pengyu. Development characteristics of organic-rich shale and strategic selection of shale gas exploration area in China[J]. Natural Gas Industry, 2009, 29(12): 115-118. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200912040.htm
    [25]
    梁峰, 朱炎铭, 马超, 等. 湘西北地区牛蹄塘组页岩气储层沉积展布及储集特征[J]. 煤炭学报, 2015, 40(12): 2884-2892. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201512019.htm

    LIANG Feng, ZHU Yanming, MA Chao, et al. Sedimentary distribution and reservoir characteristics of shale gas reservoir of Niutitang Formation in northwestern Hunan[J]. Journal of China Coal Society, 2015, 40(12): 2884-2892. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201512019.htm
    [26]
    CUI Huiying, LIANG Feng, MA Chao, et al. Pore evolution characte-ristics of Chinese marine shale in the thermal simulation experiment and the enlightenment for gas shale evaluation in South China[J]. Geosciences Journal, 2018, 23(4): 595-602.
    [27]
    李学元, 陈尚斌, 李绪慧, 等. 张家口-怀来地区下马岭组页岩气储层与资源潜力评价[J]. 特种油气藏, 2018, 25(5): 71-77. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201805014.htm

    LI Xueyuan, CHEN Shangbin, LI Xuhui, et al. Shale gas reservoir and resource potential evaluation of the Xiamaling Formation in Zhangjiakou-Huailai[J]. Special Oil & Gas Reservoirs, 2018, 25(5): 71-77. https://www.cnki.com.cn/Article/CJFDTOTAL-TZCZ201805014.htm
    [28]
    杨永明, 鞠杨, 刘红彬, 等. 孔隙结构特征及其对岩石力学性能的影响[J]. 岩石力学与工程学报, 2009, 28(10): 2031-2038. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200910013.htm

    YANG Yongming, JU Yang, LIU Hongbin, et al. Influence of porous structure properties on mechanical performances of rock[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(10): 2031-2038. https://www.cnki.com.cn/Article/CJFDTOTAL-YSLX200910013.htm
    [29]
    MILLIKEN K L, RUDNICKI M, AWWILLER D N, et al. Organic matter-hosted pore system, Marcellus Formation (Devonian), Pennsylvania[J]. AAPG Bulletin, 2013, 97(2): 177-200.
    [30]
    王飞宇, 关晶, 冯伟平, 等. 过成熟海相页岩孔隙度演化特征和游离气量[J]. 石油勘探与开发, 2013, 40(6): 764-768. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201306020.htm

    WANG Feiyu, GUAN Jing, FENG Weiping, et al. Evolution of overmature marine shale porosity and implication to the free gas volume[J]. Petroleum Exploration and Development, 2013, 40(6): 764-768. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201306020.htm
    [31]
    张威, 刘新义, 郑小燕. 矿物成分强度对岩石单轴抗压强度的影响[J]. 科学技术与工程, 2012, 12(30): 8085-8088. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS201230063.htm

    ZHANG Wei, LIU Xinyi, ZHENG Xiaoyan. Study of the hardness of mineral on the uniaxial compression strength[J]. Science Technology and Engineering, 2012, 12(30): 8085-8088. https://www.cnki.com.cn/Article/CJFDTOTAL-KXJS201230063.htm
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