渝东和渝东南地区页岩的储层特征及孔隙结构

doi:10.3969/j.issn.1007-2861.2015.05.021

上海大学学报(自然科学版) ›› 2016, Vol. 22 ›› Issue (2): 246-260.doi: 10.3969/j.issn.1007-2861.2015.05.021

• 环境与化学工程 • 上一篇

渝东和渝东南地区页岩的储层特征及孔隙结构

朱阳升1,2, 宋学行2, 郭印同3, 徐峰3, 孙楠楠2, 魏伟2,4, 陈志文1

1. 上海大学环境与化学工程学院, 上海200444;
2. 中国科学院上海高等研究院低碳转化科学与工程重点实验室, 上海201203;
3. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室, 武汉430071;
4. 上海科技大学物质科学与技术学院, 上海201210

收稿日期:2016-01-11 出版日期:2016-04-30 发布日期:2016-04-30
通讯作者: 陈志文(1962—), 男, 教授, 博士生导师, 博士, 研究方向为环境与能源材料的微结构、性能及环境检测, 以及纳米材料的可控制合成与环保工艺. E-mail: zwchen@shu.edu.cn
作者简介:陈志文(1962—), 男, 教授, 博士生导师, 博士, 研究方向为环境与能源材料的微结构、性能及环境检测, 以及纳米材料的可控制合成与环保工艺. E-mail: zwchen@shu.edu.cn
基金资助:
中国科学院战略性先导科技专项基金资助项目(XDB10040200)

Characteristics and pore structures of shale reservoir rocks in eastern and southeastern Chongqing of China

ZHU Yangsheng1,2, SONG Xuehang2, GUO Yintong3, XU Feng3, SUN Nannan2, WEI Wei2,4, CHEN Zhiwen1

1. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China;
2. CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201203, China;
3. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
4. School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China

Received:2016-01-11 Online:2016-04-30 Published:2016-04-30

摘要/Abstract

摘要：

以重庆地区下志留统龙马溪组及下侏罗统自流井组页岩为研究对象, 采用X射线衍射(X-ray diffraction, XRD)技术、气体吸附法(N₂吸附, CO₂吸附)、场发射扫描电镜(field emission-scanning electron microscope, FE-SEM)、X射线光电子能谱(X-ray photoelectron spectrascopy, XPS)和岩石单轴压缩实验等手段从页岩的元素组成、矿物组成、储集空间类型以及岩石力学性质等方面对研究区的页岩储层特征进行了综合研究. 结果表明: 研究区页岩的脆性指数高, 具有较高的弹性模量和较低的泊松比, 有利于人工压裂改造; 页岩中的石英含量超过45%, 黏土矿物含量为24.4%~32.5%; 页岩的矿物成分以绿泥石、伊利石、高岭石为主,还含有长石、方解石、白云石、黄铁矿和块磷铝矿等; 页岩的孔隙类型主要包括粒间孔、粒内孔、有机质孔隙和微裂缝; 微孔隙度在5%左右, 主孔区位于0~20 nm, 以介孔为主; 页岩的孔隙度、BET比表面积、孔体积等与总有机碳(total organic carbon, TOC)含量、黏土含量呈正线性相关, 与脆性矿物含量呈负相关.

关键词: 龙马溪组 , 自流井组 , 孔隙结构 , 相关性分析, 页岩储层 , 重庆地区

Abstract:

Elemental compositions, mineral compositions, reservoir space types and mechanical properties of shale samples from the Lower Silurian Longmaxi Formation and Lower Jurassic Ziliujing Formation were investigated by X-ray diffraction (XRD), gas adsorption (N₂, CO₂) analysis, field emission-scanning electron microscope (FE-SEM), X-ray photoelectron spectroscopy (XPS), and uniaxial compressive tests. It was found that both formations arecharacterized by relatively high brittleness, high elastic modulus and lowPoisson’s ratio. That was advantageous for fracturing. To be more specific, each sample
was composed of quartz, clay, feldspar, calcite, dolomite, pyrite, berlinite and other minerals. In general, quartz content was higher than 45%, while clay content was relatively low(24.4%~32.5%), with chlorite, illite and kaolinite representing the major components. The SEM results indicated that pores could be classified into four types, namely intragranular pore, intergranular pore, organic matter pore and microfracture. In addition, the porosity of sample was 5% (capacity) with diameters mainly in the range of 0~20 nm.The BET specific surface areas and pore volumes were positively related to the total organic
carbon content (TOC) and clay content, while brittle minerals had a negative effect to these parameters.

Key words: correlation analysis, Longmaxi Formation , pore structure, shale reservoir , Ziliujing Formation , Chongqing district

朱阳升1,2, 宋学行2, 郭印同3, 徐峰3, 孙楠楠2, 魏伟2,4, 陈志文1. 渝东和渝东南地区页岩的储层特征及孔隙结构[J]. 上海大学学报(自然科学版), 2016, 22(2): 246-260.

ZHU Yangsheng1,2, SONG Xuehang2, GUO Yintong3, XU Feng3, SUN Nannan2, WEI Wei2,4, CHEN Zhiwen1. Characteristics and pore structures of shale reservoir rocks in eastern and southeastern Chongqing of China[J]. Journal of Shanghai University（Natural Science Edition）, 2016, 22(2): 246-260.

参考文献

[1] 王海运. 世界能源格局的新变化及其对中国能源安全的影响[J]. 上海大学学报: 社会科学版, 2013, 30(6): 1-11.
[2] 汪民. 页岩气知识读本[M]. 北京: 科学出版社, 2013.

[3] Curtis J B. Fractured shale-gas systems [J]. AAPG Bulletin, 2002, 86(11): 1921-1938.
[4] 张金川, 姜生玲, 唐玄, 等. 我国页岩气富集类型及资源特点[J]. 天然气工业, 2009, 29(12): 109-114.
[5] 王玉满, 董大忠, 李建忠, 等. 川南下志留统龙马溪组页岩气储层特征[J]. 石油学报, 2012, 33(4): 551-561.
[6] 梁超, 姜在兴, 杨镱婷, 等. 四川盆地五峰组-龙马溪组页岩岩相及储集空间特征[J]. 石油勘探与开发, 2012, 39(6): 691-698.
[7] 刘树根, 马文辛, Luba J, 等. 四川盆地东部地区下志留统龙马溪组页岩储层特征[J]. 岩石学报, 2011, 27(8): 2239-2252.
[8] 顾忠安, 郑荣才, 王亮, 等. 渝东涪陵地区大安寨段页岩储层特征研究[J]. 岩性油气藏, 2014, 26(2): 67-73.
[9] Hui T, Lei P, Xian M X, 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.
[10] 焦淑静, 韩辉, 翁庆萍, 等. 页岩孔隙结构扫描电镜分析方法研究[J]. 电子显微学报, 2012, 31(5): 432-436.
[11] 陈丽华. 扫描电镜在石油地质上的应用[M]. 北京: 石油工业出版社, 1990.
[12] Curtis M E, Sondergeld C H, Ambrose R J, et al. Microstructural investigation of gas shales in two and three dimensions using nanometer-scale resolution imaging [J]. AAPG Bulletin, 2012, 96(4): 665-677.
[13] 于炳松. 页岩气储层孔隙分类与表征[J]. 地学前缘, 2013(4): 211-220.
[14] 伍岳, 樊太亮, 蒋恕, 等. 海相页岩储层微观孔隙体系表征技术及分类方案[J]. 地质科技情报, 2014, 69(4): 91-97.
[15] Lagutchev A S, Song K J, Huang J Y, et al. Self-assembly of alkylsiloxane monolayers on fused silica studied by XPS and sum frequency generation spectroscopy [J]. Chemical Physics, 1998, 226(3): 337-349.
[16] Lu X C, Li F C, Watson A T. Adsorption measurements in devonian shales [J]. Fuel, 1995, 74(4): 599-603.
[17] Ross D, Bustin R M. The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs [J]. Marine and Petroleum Geology, 2009, 26(6): 916-927.
[18] 侯宇光, 何生, 易积正, 等. 页岩孔隙结构对甲烷吸附能力的影响[J]. 石油勘探与开发, 2014, 41(2): 248-256.
[19] Bowker K A. Recent development of the Barnett Shale play, Fort Worth basin [J]. West Texas Geological Society Bulletin, 2003, 42(6): 1-11.
[20] 黄锐, 张新华, 秦黎明. 基于元素含量的页岩矿物成分及脆性评价方法[J]. 中国石油勘探, 2014, 19(2): 85-90.
[21] Rickman R, Mullen M J, Petre J E, et al. A practical use of shale petrophysics for stimulation design optimization: all shale plays are not clones of the barnett shale [C]//Society of Petroleum Engineers. 2008: 11-13.
[22] Jin X, Shah S N, Roegiers J, et al. Fracability evaluation in shale reservoirs: an integrated petrophysics and geomechanics approach [C]//Society of Petroleum Engineers. 2014: 3-8.

[23] 郑荣才, 何龙, 梁西文, 等. 川东地区下侏罗统大安寨段页岩气(油)成藏条件[J]. 天然气工业, 2013, 33(12): 30-40.
[24] 唐颖, 邢云, 李乐忠, 等. 页岩储层可压裂性影响因素及评价方法[J]. 地学前缘, 2012, 19(5): 356-363.
[25] Frantz J H, Jochen V, Holditch S E. Shale gas White Paper [R]. New York: Schlumberger, 2005.
[26] Rouquerol J, Avnir D, Fairbridge C W, et al. Recommendations for the characterization of porous solids [J]. Pure and Applied Chemistry, 1994, 66(8): 1739-1758.
[27] Schieber J. Common themes in the formation and preservation of intrinsic porosity in shales and mudstones: illustrated with examples across the phanerozoic [C]//Society of Petroleum Engineers. 2010: 10.
[28] 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 pores [J]. AAPG Bulletin, 2012, 96(6): 1071-1098.
[29] Sondergeld C H, Ambrose R J, Rai C S, et al. Micro-structural studies of gas shales [C]//Society of Petroleum Engineers. 2010: 23-25.
[30] 杨峰, 宁正福, 胡昌蓬, 等. 页岩储层微观孔隙结构特征[J]. 石油学报, 2013, 34(2): 301-311.
[31] 袁野, 赵靖舟, 耳闯, 等. 鄂尔多斯盆地中生界及上古生界页岩孔隙类型及特征研究[J]. 西安石油大学学报: 自然科学版, 2014, 29(2): 14-19.
[32] 王亮, 陈云燕, 刘玉霞. 川东南彭水地区龙马溪组页岩孔隙结构特征[J]. 中国石油勘探, 2014, 19(5):
80-88.
[33] Sing K, Everett D H, Haul R, et al. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity [J]. Pure and Applied
Chemistry, 1985, 57(4): 603-619.
[34] 中国国家标准化管理委员会. GB/T 19587—2004气体吸附BET 法测定固态物质比表面积[S]. 北
京: 中国标准出版社, 2004.
[35] Barrett E P, Joyner L G, Halenda P P. The determination of pore volume and area distributions in porous substances. Ⅰ. Computations from nitrogen isotherms [J]. Journal of the
American Chemical Society, 1951, 73(1): 373-380.
[36] Chalmers G R, Bustin R M, Power I M. Characterization of gas shale pore systems by porosimetry, pycnometry, surface area, and field emission scanning electron
microscopy/transmission electron microscopy image analyses: examples from the Barnett, Woodford, Haynesville, Marcellus, and Doig units [J]. AAPG Bulletin, 2012, 96(6): 1099-1119.
[37] Dollimore D, Heal G R. An improved method for the calculation of pore size distribution from adsorption data [J]. Journal of Applied Chemistry, 1964, 14: 109-114.
[38] 秦建中, 申宝剑, 付小东, 等. 中国南方海相优质烃源岩超显微有机岩石学与生排烃潜力[J]. 石油与天然气地质, 2010, 31(6): 826-837.

渝东和渝东南地区页岩的储层特征及孔隙结构

Characteristics and pore structures of shale reservoir rocks in eastern and southeastern Chongqing of China

PDF

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价