Lithologic Reservoirs ›› 2020, Vol. 32 ›› Issue (5): 46-53.doi: 10.12108/yxyqc.20200505

• PETROLEUM GEOLOGY • Previous Articles     Next Articles

Development characteristics and evolution of organic matter pores of marine shale in southeastern Chongqing

WANG Pengfei1,2, JIN Can3, ZANG Xiaopeng1, TIAN Qianning1, LIU Guo1, CUI Wenjuan1   

  1. 1. Geoscience Documentation Center, China Geological Survey, Beijing 100083, China;
    2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum(Beijing), Beijing 102249, China;
    3. Sinopec Shanghai Offshore Petroleum Company, Shanghai 200120, China
  • Received:2019-09-25 Revised:2019-11-28 Online:2020-10-01 Published:2020-08-08

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Abstract: Organic matter pores determine the occurrence and effective flow of hydrocarbon gas in shale reservoir. The organic matter pore structures of typical organic-rich black marine shale with high-over maturity of Lower Silurian Longmaxi Formation and Lower Cambrian Niutitang Formation in southeastern Chongqing were observed by electron microscope. The results show that there were a large number of organic matter pores in pyrobitumen of Longmaxi shale, with large diameter and strong connectivity, and solid kerogen had a little organic matter pores,while no organic matter pore was developed in pyrobitumen and solid kerogen of Niutitang shale. The two sets of shale have similar characteristics in total organic carbon content,whole rock mineral composition and kerogen type,but the thermal maturity of Niutitang shale is much higher than that of Longmaxi shale, and it has reached the metamorphism stage. The physical and chemical properties of solid kerogen and pyrobitumen tend to be similar to that of graphite, resulting in no pores developed in the organic matter. High thermal maturity is not conducive to the preservation of organic pores in shale, so the exploration and development of highover maturity marine shale gas of Lower Cambrian Niutitang Formation in southeastern Chongqing should focus on the area with thermal maturity less than 3.5%.

Key words: marine shale, organic matter pore, Niutitang Formation, Longmaxi Formation, southeastern Chongqing

CLC Number: 

  • TE122.2
[1] MILLIKEN K L, RUDNICKI M, AWWILLER D N, et al. Organic matter-hosted pore system,Marcellus Formation(Devonian), Pennsylvania. AAPG Bulletin, 2013, 97(2):177-200.
[2] 张廷山, 何映颉, 杨洋, 等.有机质纳米孔隙吸附页岩气的分子模拟.天然气地球科学, 2017, 28(1):146-155. ZHANG T S, HE Y J, YANG Y, et al. Characteristics and mechanisms of the micro-holes in the Early Palaeozoic marine shale, southern Sichuan Basin. Acta Geologica Sinica, 2017, 28(1):146-155.
[3] JIAO K, YAO S P, LIU C, et al. The characterization and quantitative analysis of nanopores in unconventional gas reservoirs utilizing FESEM-FIB and image processing:an example from the Lower Silurian Longmaxi shale, upper Yangtze region, China. International Journal of Coal Geology, 2014, 128:1-11.
[4] JI W M, SONG Y, RUI Z H, et al. Pore characterization of isolated organic matter from high matured gas shale reservoir. International Journal of Coal Geology, 2017, 174:31-40.
[5] WANG P F, JIANG Z X, JI W M, et al. Heterogeneity of intergranular,intraparticle and organic pores in Longmaxi shale in Sichuan Basin, South China:Evidence from SEM digital images and fractal and multifractal geometries. Marine and Petroleum Geology, 2016, 72:122-138.
[6] MA Y, ZHONG N N, LI D H, et al. Organic matter/clay mineral intergranular pores in the Lower Cambrian Lujiaping Shale in the north-eastern part of the upper Yangtze area, China:a possible microscopic mechanism for gas preservation. International Journal of Coal Geology, 2015, 137:38-54.
[7] 王香增, 张丽霞, 雷裕红, 等.低熟湖相页岩内运移固体有机质和有机质孔特征:以鄂尔多斯盆地东南部延长组长7油层组页岩为例.石油学报, 2018, 39(2):141-151. WANG X Z, ZHANG L X, LEI Y H, et al. Characteristics of migrated solid organic matters and organic pores in low maturity lacustrine shale:a case study of the shale in Chang 7 oil-bearing formation of Yanchang Formation, southeastern Ordos Basin. Acta Petrolei Sinica, 2018, 39(2):141-151.
[8] 王玉满, 李新景, 陈波, 等.海相页岩有机质炭化的热成熟度下限及勘探风险.石油勘探与开发, 2018, 45(3):385-395. WANG Y M, LI X J, CHEN B, et al. Lower limit of thermal maturity for the carbonification of organic matters in marine shales and its exploration risk. Petroleum Exploration and Development, 2018, 45(3):385-395.
[9] 刘忠宝, 冯动军, 高波, 等.上扬子地区下寒武统高演化页岩微观孔隙特征.天然气地球科学, 2017, 28(7):1096-1107. LIU Z B, FENG D J, GAO B, et al. Micropore characteristics of high thermal evolution shale in the Lower Cambrian series in Upper Yangtze area. Natural Gas Geoscience, 2017, 28(7):1096-1107.
[10] 郭旭升, 胡东风, 魏志红, 等.涪陵页岩气田的发现与勘探认识.中国石油勘探, 2016, 21(3):24-37. GUO X S, HU D F, WEI Z H, et al. Discovery and exploration of Fuling shale gas field. China Petroleum Exploration, 2016, 21(3):24-37.
[11] 赵建华, 金之钧, 金振奎, 等.岩石学方法区分页岩中有机质类型.石油实验地质, 2016, 38(4):514-520. ZHAO J H, JIN Z J, JIN Z K, et al. Petrographic methods to distinguish organic matter type in shale. Petroleum Geology & Experiment, 2016, 38(4):514-520.
[12] LOUCKS R G, REED R M. Scanning-electron-microscope petrographic evidence for distinguishing organic-matter pores associated with depositional organic matter versus migrated organic matter in mudrocks. Gulf Coast Association of Geological Societies Journal, 2014, 3:51-60.
[13] 陈相霖, 郭天旭, 石砥石, 等.陕南地区牛蹄塘组页岩孔隙结构特征及吸附能力.岩性油气藏, 2019, 31(5):52-60. CHEN X L, GUO T X, SHI D S, et al. Pore structure characteristics and adsorption capacity of Niutitang Formation shale in southern Shaanxi. Lithologic Reservoirs, 2019, 31(5):52-60.
[14] 拜文华, 王强, 孙莎莎, 等.五峰组-龙马溪组页岩地化特征及沉积环境:以四川盆地西南缘为例. 中国矿业大学学报, 2019, 48(6):1276-1289. BAI W H, WANG Q, SUN S S, et al. Geochemical characteristics and sedimentary environment of the Wufeng-Longmaxi shales:a case study from southwestern margin of the Sichuan Basin. Journal of China University of Mining & Technology, 2019, 48(6):1276-1289.
[15] 丁江辉, 张金川, 杨超, 等.页岩有机孔成因演化及影响因素探讨.西南石油大学学报(自然科学版), 2019, 41(2):33-44. DING J H, ZHANG J C, YANG C, et al. Formation evolution and influencing factors of organic pores in shale. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(2):33-44.
[16] 张焱林, 段轲, 刘早学, 等.鄂西下寒武统牛蹄塘组页岩特征及页岩气富集主控因素.石油实验地质, 2019, 41(5):691-698. ZHANG Y L, DUAN K, LIU Z X, et al. Characteristics of shale and main controlling factors of shale gas enrichment of Lower Cambrian Niutitang Formation in western Hubei. Petroleum Geology & Experiment, 2019, 41(5):691-698.
[17] 张建坤, 何生, 颜新林, 等.页岩纳米级孔隙结构特征及热成熟演化.中国石油大学学报(自然科学版), 2017, 41(1):11-24. ZHANG J K, HE S, YAN X L, et al. Structural characteristics and thermal evolution of nanoporosity in shales. Journal of China University of Petroleum(Edition of Natural Science), 2017, 41(1):11-24.
[18] 王朋飞, 姜振学, 杨彩虹, 等.重庆周缘龙马溪组和牛蹄塘组页岩有机质孔隙发育特征.岩性油气藏, 2019, 31(3):27-36. WANG P F, JIANG Z X, YANG C H, et al. Organic pore development characteristics of Longmaxi and Niutitang shales in the periphery of Chongqing. Lithologic Reservoirs, 2019, 31(3):27-36.
[19] 王朋飞, 姜振学, 韩波, 等.中国南方下寒武统牛蹄塘组页岩气高效勘探开发储层地质参数.石油学报, 2018, 39(2):152-162. WANG P F, JIANG Z X, HAN B, et al. Reservoir geological parameters for efficient exploration and development of Lower Cambrian Niutitang Formation shale gas in South China. Acta Petrolei Sinica, 2018, 39(2):152-162.
[20] 马勇, 钟宁宁, 程礼军, 等.渝东南两套富有机质页岩的孔隙结构特征:来自FIB-SEM的新启示. 石油实验地质, 2015, 37(1):109-116. MA Y, ZHONG N N, CHENG L J, et al. Pore structure of two organic-rich shales in southeastern Chongqing area:Insight from focused ion beam scanning electron microscope(FIB-SEM). Petroleum Geology & Experiment, 2015, 37(1):109-116.
[21] 王朋飞, 吕鹏, 姜振学, 等.中国海陆相页岩有机质孔隙发育特征对比:基于聚焦离子束氦离子显微镜(FIB-HIM)技术. 石油实验地质, 2018, 40(5):739-748. WANG P F, LYU P, JIANG Z X, et al. Comparison of organic matter pores of marine and continental facies shale in China:based on focused ion beam helium ion microscopy(FIB-HIM). Petroleum Geology & Experiment, 2018, 40(5):739-748.
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