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

王朋飞; 吕鹏; 姜振学; 金璨; 李鑫; 张昆; 黄璞; 王毅

doi:10.11781/sysydz201805739

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

doi: 10.11781/sysydz201805739

王朋飞^1,2,
吕鹏¹,
姜振学²,
金璨³,
李鑫²,
张昆²,
黄璞⁴,
王毅¹

1. 中国地质调查局地学文献中心, 北京 100083;
2. 中国石油大学油气资源与探测国家重点实验室, 北京 102249;
3. 中国石油化工股份有限公司上海海洋油气分公司, 上海 200120;
4. 中国石油化工股份有限公司西南油气田, 成都 610000

基金项目:

中国地质调查局地学情报综合研究与产品研发项目（121201015000172602）和南方页岩气基础地质调查工程项目（12120114046701）联合资助。

详细信息

作者简介:
王朋飞(1988-),男,博士,助理研究员,从事非常规油气成藏与地质评价及能源信息研究。E-mail:wpfupc725@outlook.com。

中图分类号: TE122.2
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出版历程
- 收稿日期: 2018-04-26
- 修回日期: 2018-07-09
- 刊出日期: 2018-09-28

Comparison of organic matter pores of marine and continental facies shale in China: based on Focused Ion Beam Helium Ion Microscopy (FIB-HIM)

1. Geoscience Documentation Center, CGS, Beijing 100083, China;
2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
3. SINOPEC Shanghai Offshore Petroleum Company, Shanghai 200120, China;
4. SINOPEC Southwest Oil & Gas Company, Chengdu, Sichuan 610000, China

摘要

摘要: 为了明确不同成熟度的海陆相页岩有机质孔隙的发育特征，分别选取了中国中西部鄂尔多斯盆地的三叠系延长组陆相页岩、中国南方上扬子地区的下志留统龙马溪组以及下寒武统牛蹄塘组海相页岩等3组海陆相页岩样品，进行聚焦离子束氦离子显微镜（FIB-HIM）的观察实验。结果表明：延长组页岩样品的有机质孔隙发育数量较少，孔隙直径较小，有机质内部多发育微裂缝，页岩黏土矿物内部发育大量的粒间孔隙，粒内孔隙发育数量较少。龙马溪组页岩发育大量的有机质孔隙，大量较小直径的孔隙嵌套在直径较大的有机质孔隙中，增加了页岩孔隙的比表面积和孔隙连通性，有利于烃类气体在页岩有机质孔隙内的赋存及有效渗流。牛蹄塘组页岩内部发育数量最多的是粒间孔隙，有机质孔隙极少发育。有机质孔隙贡献了页岩孔隙系统的绝大部分有效赋存空间。页岩有机质孔隙的发育主要受控于热演化程度，过低的热演化程度（0.5% < R_o < 1.5%）无法形成大量的有机质孔隙及烃类气源供给；过高的热演化程度（3.0% < R_o < 4.0%）则会导致页岩有机质孔隙消失，烃类气体失去有效赋存场所而在地史过程中大量散失；适宜的热演化程度（1.5% < R_o < 3.0%）能够保证页岩有机质孔隙大量发育，有利于烃类气体在页岩储层中形成有效赋存和渗流。针对中国南方高—过成熟度海相页岩气的高效勘探开发，应寻找热演化程度适中的页岩层位。
- 延长组 /
- 龙马溪组 /
- 牛蹄塘组 /
- 有机质孔隙 /
- 热演化程度 /
- 页岩
Abstract: The continental shale in the Triassic Yanchang Formation in the Ordos Basin of the central and western China, and the marine shale in the Lower Silurian Longmaxi Formation and the Lower Cambrian Niutitang Formation in South China were chosen for Focused Ion Beam Helium Ion Microscope (FIB-HIM) observation in order to clarify the development characteristics of organic matter pores in marine and continental shale with different maturities. Few organic matter pores developed in the Yanchang shale, and the pore diameter is usually small. Micro-fractures are widespread in the organic matter, and a large amount of interparticle pores were present in the clay minerals of the shale. The Longmaxi shale samples developed a large number of organic matter pores, and there are many of small-diameter pores nested in large-diameter organic matter pores, which increased specific surface area and pore connectivity, and are favorable for the occurrence and migration of hydrocarbon gases in organic matter pores. The Niutitang shale samples contain a large number of interparticle pores and few organic matter pores. Organic matter pores contributed a vast majority of the effective storage space and connectivity of the pore system. The development of organic matter pores was mainly controlled by thermal evolution. Low thermal evolution (0.5% < R_o < 1.5%) can not forma large number of organic matter pores and hydrocarbon gas supply. Thermal evolution that is too high (3.0% < R_o < 4.0%) will lead to organic matter pore disappearance and hydrocarbon gas lost during geological history. The appropriate extent of thermal evolution (1.5% < R_o < 3.0%) ensures that organic matter pores are well developed, and is also important for the storage and seepage capacity for hydrocarbon gases in shale reservoirs. Therefore, for the exploration and development of highly-mature and over-mature marine shale gas in South China, the shale horizons with a moderate thermal evolution degree should be focused on.
- Yanchang Formation /
- Longmaxi Formation /
- Niutitang Formation /
- organic matter pore /
- thermal maturity /
- shale

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参考文献(32)

[1]	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(12):848-861.
[2]	LOUCKS R G,REED R M,RUPPEL S C,et al.Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores[J].AAPG Bulletin,2012,96(6):1071-1098.
[3]	SLATT R M,O'BRIEN N R.Pore types in the Barnett and Woodford gas shales:contribution to understanding gas storage and migration pathways in fine-grained rocks[J].AAPG Bulletin,2011,95(12):2017-2030.
[4]	TIAN Hui,PAN Lei,XIAO Xianming,et al.A preliminary study on the pore characterization of Lower Silurian black shales in the Chuandong Thrust Fold Belt,southwestern China using low pressure N₂ adsorption and FE-SEM methods[J].Marine and Petroleum Geology,2013,48:8-19.
[5]	TIAN Hui,PAN Lei,ZHANG Tongwei,et al.Pore characterization of organic-rich Lower Cambrian shales in Qiannan Depression of Guizhou province,southwestern China[J].Marine and Petroleum Geology,2015,62:28-43.
[6]	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.
[7]	WANG Pengfei,JIANG Zhenxue,JI Wenming,et al.Heteroge-neity of intergranular,intraparticle and organic pores in Longmaxi shale in Sichuan Basin,South China:evidence from SEM digital images and fractal and multifractal geometries[J].Marine and Petroleum Geology,2016,72:122-138.
[8]	WANG Pengfei,JIANG Zhenxue,CHEN Lei,et al.Pore structure characterization for the Longmaxi and Niutitang shales in the Upper Yangtze Platform,South China:evidence from Focused Ion Beam-He Ion Microscopy,nano-computerized tomography and gas adsorption analysis[J].Marine and Petroleum Geology,2016,77:1323-1337.
[9]	JIAO Kun,YAO Suping,LIU Chun,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[J].International Journal of Coal Geology,2014,128-129:1-11.
[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[J].中国石油勘探,2016,21(3):24-37. GUO Xusheng,HU Dongfeng,WEI Zhihong,et al.Discovery and exploration of Fuling shale gas field[J].China Petroleum Exploration,2016,21(3):24-37.
[11]	郭旭升.南方海相页岩气"二元富集"规律:四川盆地及周缘龙马溪组页岩气勘探实践认识[J].地质学报,2014,88(7):1209-1218. GUO Xusheng.Rules of two-factor enrichment for marine shale gas in Southern China:understanding from the Longmaxi Formation shale gas in Sichuan Basin and its surrounding area[J].Acta Geologica Sinica,2014,88(7):1209-1218.
[12]	曹涛涛,邓模,罗厚勇,等.下扬子地区中上二叠统页岩有机孔发育特征[J].石油实验地质,2018,40(3):315-322. CAO Taotao,DENG Mo,LUO Houyong,et al.Characteristics of organic pores in Middle and Upper Permian shale in the Lower Yangtze region[J].Petroleum Geology & Experiment,2018,40(3):315-322.
[13]	赵文智,李建忠,杨涛,等.中国南方海相页岩气成藏差异性比较与意义[J].石油勘探与开发,2016,43(4):499-510. ZHAO Wenzhi,LI Jianzhong,YANG Tao,et al.Geological difference and its significance of marine shale gases in South China[J].Petroleum Exploration and Development,2016,43(4):499-510.
[14]	林森虎,袁选俊,杨智.陆相页岩与泥岩特征对比及其意义:以鄂尔多斯盆地延长组7段为例[J].石油与天然气地质,2017,38(3):517-523. LIN Senhu,YUAN Xuanjun,YANG Zhi.Comparative study on lacustrine shale and mudstone and its significance:a case from the 7th member of Yanchang Formation in the Ordos Basin[J].Oil & Gas Geology,2017,38(3):517-523.
[15]	聂海宽,金之钧,马鑫,等.四川盆地及邻区上奥陶统五峰组-下志留统龙马溪组底部笔石带及沉积特征[J].石油学报,2017,38(2):160-174. NIE Haikuan,JIN Zhijun,MA Xin,et al.Graptolites zone and sedimentary characteristics of Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas[J].Acta Petrolei Sinica,2017,38(2):160-174.
[16]	WAN Yi,PAN Zhejun,TANG Shuheng,et al.An experimental investigation of diffusivity and porosity anisotropy of a Chinese gas shale[J].Journal of Natural Gas Science and Engineering,2015,23:70-79.
[17]	MA Yong,ZHONG Ningning,LI Dahua,et al.Organic matter/clay mineral intergranular pores in the Lower Cambrian Lujia-ping shale in the north-eastern part of the Upper Yangtze area,China:a possible microscopic mechanism for gas preservation[J].International Journal of Coal Geology,2015,137:38-54.
[18]	郭旭升,胡东风,李宇平,等.海相和湖相页岩气富集机理分析与思考:以四川盆地龙马溪组和自流井组大安寨段为例[J].地学前缘,2016,23(2):18-28. GUO Xusheng,HU Dongfeng,LI Yuping,et al.Analyses and thoughts on accumulation mechanisms of marine and lacustrine shale gas:a case study in shales of Longmaxi Formation and Da'anzhai section of Ziliujing Formation in Sichuan Basin[J].Earth Science Frontiers,2016,23(2):18-28.
[19]	耳闯,赵靖舟,姚泾利,等.鄂尔多斯盆地延长组长7油层组页岩-致密砂岩储层孔缝特征[J].石油与天然气地质,2016,37(3):341-353. ER Chuang,ZHAO Jingzhou,YAO Jingli,et al.Characterization of pores and fracture networks in organic-rich shale and tight sandstone of the Chang-7 member,Triassic Yanchang Formation,Ordos Basin[J].Oil & Gas Geology,2016,37(3):341-353.
[20]	王香增,张丽霞,李宗田,等.鄂尔多斯盆地延长组陆相页岩孔隙类型划分方案及其油气地质意义[J].石油与天然气地质,2016,37(1):1-7. WANG Xiangzeng,ZHANG Lixia,LI Zongtian,et al.Pore type classification scheme for continental Yanchang shale in Ordos Basin and its geological significance[J].Oil & Gas Geology,2016,37(1):1-7.
[21]	纪文明,宋岩,姜振学,等.四川盆地东南部龙马溪组页岩微-纳米孔隙结构特征及控制因素[J].石油学报,2016,37(2):182-195. JI Wenming,SONG Yan,JIANG Zhenxue,et al.Micro-nano pore structure characteristics and its control factors of shale in Longmaxi Formation,southeastern Sichuan Basin[J].Acta Petrolei Sinica,2016,37(2):182-195.
[22]	TISSOT B P,PELET R,UNGERER P.Thermal history of sedimentary basins,maturation indices,and kinetics of oil and gas generation[J].AAPG Bulletin,1987,71(12):1445-1466.
[23]	刘树根,邓宾,钟勇,等.四川盆地及周缘下古生界页岩气深埋藏-强改造独特地质作用[J].地学前缘,2016,23(1):11-28. LIU Shugen,DENG Bin,ZHONG Yong,et al.Unique geological features of burial and superimposition of the Lower Paleozoic shale gas across the Sichuan Basin and its periphery[J].Earth Science Frontiers,2016,23(1):11-28.
[24]	聂海宽,金之钧,边瑞康,等.四川盆地及其周缘上奥陶统五峰组-下志留统龙马溪组页岩气"源-盖控藏"富集[J].石油学报,2016,37(5):557-571. NIE Haikuan,JIN Zhijun,BIAN Ruikang,et al.The "source-cap hydrocarbon-controlling" enrichment of shale gas in Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation of Sichuan Basin and its periphery[J].Acta Petrolei Sinica,2016,37(5):557-571.
[25]	朱彤,王烽,俞凌杰,等.四川盆地页岩气富集控制因素及类型[J].石油与天然气地质,2016,37(3):399-407. ZHU Tong,WANG Feng,YU Lingjie,et al.Controlling factors and types of shale gas enrichment in the Sichuan Basin[J].Oil & Gas Geology,2016,37(3):399-407.
[26]	张钰莹,何治亮,高波,等.上扬子区下寒武统富有机质页岩沉积环境及其对有机质含量的影响[J].石油实验地质,2017,39(2):154-161. ZHANG Yuying,HE Zhiliang,GAO Bo,et al.Sedimentary environment of the Lower Cambrian organic-rich shale and its influence on organic content in the Upper Yangtze[J].Petroleum Geology & Experiment,2017,39(2):154-161.
[27]	孟志勇.四川盆地涪陵地区五峰组-龙马溪组含气页岩段纵向非均质性及其发育主控因素[J].石油与天然气地质,2016,37(6):838-846. MENG Zhiyong.Vertical heterogeneity and its controlling factors of the gas shale in the Wufeng-Longmaxi Fms in Fuling area,the Sichuan Basin[J].Oil & Gas Geology,2016,37(6):838-846.
[28]	王佳,谭先锋,田景春,等.富有机质页岩中烃类动态运移对页岩气富集成藏的制约:以四川盆地龙马溪组为例[J].石油实验地质,2017,39(6):755-762. WANF Jia,TAN Xianfeng,TIAN Jingchun,et al.Constraints of hydrocarbon migration in Longmaxi shale in Sichuan Basin on shale gas accumulation[J].Petroleum Geology & Experiment,2017,39(6):755-762.
[29]	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.
[30]	魏祥峰,李宇平,魏志红,等.保存条件对四川盆地及周缘海相页岩气富集高产的影响机制[J].石油实验地质,2017,39(2):147-153. WEI Xiangfeng,LI Yuping,WEI Zhihong,et al.Effects of pre-servation conditions on enrichment and high yield of shale gas in Sichuan Basin and its periphery[J].Petroleum Geology & Experiment,2017, 39(2):147-153.
[31]	洪克岩,李博,姜生玲,等.湘鄂西低勘探程度区构造解释及页岩气保存条件:以来凤咸丰区块为例[J].断块油气田,2017,24(6):779-782,804. HONG Keyan,LI Bo,JIANG Shengling,et al.Structural interpretation and shale gas preservation conditions of low exploration level region, western Hunan-Hubei:taking Laifeng-Xianfeng Block as an example[J].Fault-Block Oil and Gas Field,2017,24(6):779-782,804.
[32]	张培先.黔中隆起及邻区下寒武统页岩气成藏特殊性分析[J].石油实验地质,2017,39(2):162-168,179. ZHANG Peixian.Peculiar accumulation conditions for shale gas in the Lower Cambrian in Qianzhong uplift and its periphery[J].Petroleum Geology & Experiment,2017,39(2):162-168,179.