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

易积正; 王超

doi:10.11781/sysydz201801013

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

doi: 10.11781/sysydz201801013

易积正¹,
王超²

1.
中国石化江汉油田分公司, 湖北潜江 433124
2. 中国石化江汉油田分公司勘探开发研究院, 武汉 430223

基金项目: 国家科技重大专项（2016ZX05060）和中国石化科技项目（P17014-2）资助。

详细信息

作者简介:
易积正(1962-),男,教授级高级工程师,从事油气勘探开发与管理。E-mail:498703979@qq.com

中图分类号: TE122.2
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出版历程
- 收稿日期: 2017-10-13
- 修回日期: 2017-12-12
- 刊出日期: 2018-01-28

Differential pore development characteristics in various shale lithofacies of Longmaxi Formation in Jiaoshiba area, Sichuan Basin

YI Jizheng¹,
WANG Chao²

1.
SINOPEC Jianghan Oilfield Company, Qianjiang, Hubei 433124, China
2. Research Institute of Petroleum Exploration and Development, SINOPEC Jianghan Oilfield Company, Wuhan, Hubei 430223, China

摘要

摘要: 以四川盆地焦石坝地区下志留统龙马溪组海相页岩为研究对象，综合利用全岩X衍射、薄片鉴定、阴极发光、氩离子抛光扫描电镜、高压压汞-气体吸附联测、核磁孔隙度等实验数据，开展不同岩相储层特征差异性研究。研究结果揭示：（1）焦石坝地区龙马溪组海相页岩岩相主要分为硅质类页岩、混合类页岩和黏土类页岩；（2）硅质类页岩有机孔隙非常发育，混合类页岩和黏土类页岩中无机孔隙较为发育，其中黏土类页岩有机孔隙发育程度较弱；（3）不同页岩岩相非均质性特征显著。总有机碳含量、孔隙度、孔隙体积、比表面积和含气量方面，硅质类页岩最为发育，黏土类页岩发育程度最低，混合类页岩介于两者之间；（4）硅质类页岩沉积期古生物繁盛有利于有机质富集和有机质孔隙发育，混合类页岩和黏土类页岩分别受底流和陆源碎屑沉积作用影响，总有机碳含量较低且有机质孔隙相对欠发育。
- 孔隙 /
- 岩相 /
- 页岩 /
- 龙马溪组 /
- 焦石坝地区 /
- 四川盆地
Abstract: It is of great significance for shale gas exploration and development to understand different pore characteristics in various shale lithofacies. In this paper, the reservoir characteristics of different shale lithofacies of Longmaxi Formation in the Jiaoshiba area were studied by using X-ray diffraction, thin section analysis, cathodoluminescence, FE-SEM, high pressure mercury intrusion-gas adsorption joint test, and nuclear magnetic resonance porosity. Four preliminary conclusions were obtained:(1) Three main types of shale lithofacies were identified in the Longmaxi Formation in the Jiaoshiba area, including siliceous shale, mixed shale and argillaceous shale. (2) Organic porosity developed well in the siliceous shale, but did not develop in the mixed shale and argillaceous shale, in which inorganic pores were more developed. (3) The reservoir heterogeneity characteristics of various shale lithofacies were remarkable. The siliceous shale was the most outstanding in TOC content, porosity, pore volume, specific surface area and gas content, while the mixed shale the second, and the argillaceous shale the least. (4) When the siliceous shale was deposited, bioproductivity was high, which was conducive to the enrichment of organic matter and the development of organic porosity. The mixed shale and argillaceous shale controlled by deep-water currents and terrigenous clastic material supply showed low TOC contents and poor organic pore development.
- porosity /
- lithofacies /
- shale /
- Longmaxi Formation /
- Jiaoshiba area /
- Sichuan Basin

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参考文献(28)

[1]	郭旭升,胡东风,文治东,等.四川盆地及周缘下古生界海相页岩气富集高产主控因素:以焦石坝地区五峰组-龙马溪组为例[J].中国地质,2014,41(3):893-901. GUO Xusheng,HU Dongfeng,WEN Zhidong,et al.Major factors controlling the accumulation and high productivity in marine shale gas in the Lower Paleozoic of Sichuan Basin and its periphery:A case study of the Wufeng-Longmaxi Formation of Jiaoshiba area[J].Geology in China,2014,41(3):893-901.
[2]	刘树根,王世玉,孙玮,等.四川盆地及其周缘五峰组-龙马溪组黑色页岩特征[J].成都理工大学学报(自然科学版),2013,40(6):621-639. LIU Shugen,WANG Shiyu,SUN Wei,et al.Characteristics of black shale in Wufeng Formation and Longmaxi Formation in Sichuan Basin and its peripheral areas[J].Journal of Chengdu University of Technology (Science & Technology Edition),2013,40(6):621-639.
[3]	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 preservation conditions on enrichment and high yield of shale gas in Sichuan Basin and its periphery[J].Petroleum Geology & Experiment,2017,39(2):147-153.
[4]	冉天,谭先锋,陈浩渝,等.渝东南地区下志留统龙马溪组页岩气成藏地质特征[J].油气地质与采收率,2017,24(5):17-26. RAN Tian,TAN Xianfeng,CHEN Hao,et al.Geological features of shale gas accumulation in the Lower Silurian Longmaxi Formation,Southeast Chongqing[J].Petroleum Geology and Recovery Efficiency,2017,24(5):17-26.
[5]	要继超,王兴志,罗兰,等.渝东地区龙马溪组页岩气成藏地质条件研究[J].特种油气藏,2016,23(4):77-80. YAO Jichao,WANG Xingzhi,LUO Lan,et al.Geology of Longmaxi shale gas accumulation in eastern Chongqing[J].Special Oil & Gas Reservoirs,2016,23(4):77-80.
[6]	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. WANG Yuman,DONG Dazhong,LI Jianzhong,et al.Reservoir characteristics of shale gas in Longmaxi Formation of the Lower Silurian,southern Sichuan[J].Acta Petrolei Sinica,2012,33(4):551-561.
[7]	魏祥峰,刘若冰,张廷山,等.页岩气储层微观孔隙结构特征及发育控制因素:以川南-黔北XX地区龙马溪组为例[J].天然气地球科学,2013,24(5):1048-1059. WEI Xiangfeng,LIU Ruobing,ZHANG Tingshan,et al.Micro-pores structure characteristics and development control factors of shale gas reservoir:A case of Longmaxi Formation in XX area of southern Sichuan and northern Guizhou[J].Natural Gas Geoscience,2013,24(5):1048-1059.
[8]	于炳松.页岩气储层孔隙分类与表征[J].地学前缘,2013,20(4):211-220. YU Bingsong.Classification and characterization of gas shale pore system[J].Earth Science Frontiers,2013,20(4):211-220.
[9]	向葵,胡文宝,严良俊,等.页岩气储层特征及地球物理预测技术[J].特种油气藏,2016,23(2):5-8. XIANG Kui,HU Wenbao,YAN Liangjun,et al.Shalegas reservoir characterization and geophysical prediction[J].Special Oil & Gas Reservoirs,2016,23(2):5-8.
[10]	熊健,刘向君,梁利喜.四川盆地富有机质页岩孔隙分形特征[J].断块油气田,2017,24(2):184-189. XIONG Jian,LIU Xiangjun,LIANG Lixi.Fractal characteristics of organic rich shale pore in Sichuan Basin,China[J].Fault-Block Oil and Gas Field,2017,24(2):184-189.
[11]	李卫兵,姜振学,李卓等.渝东南页岩微观孔隙结构特征及其控制因素[J].特种油气藏,2016,23(2):50-54. LI Weibing,JIANG Zhenxue,LI Zhuo,et al.Micro-pore structure characteristics of shale in southeast Chongqing and the controlling factors[J].Special Oil & Gas Reservoirs,2016,23(2):50-54.
[12]	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.
[13]	张闯辉,朱炎铭,刘宇,等.不同成熟度页岩孔隙及其分形特征[J].断块油气田,2016,23(5):583-588. ZHANG Chuanghui,ZHU Yanming,LIU Yu,et al.Pore and fractal characteristics of shale in different maturity[J].Fault-Block Oil and Gas Field,2016,23(5):583-588.
[14]	端祥刚,高树生,胡志明,等.页岩微纳米孔隙多尺度渗流理论研究进展[J].特种油气藏,2017,24(5):1-9. DUAN Xianggang,GAO Shusheng,HU Zhiming,et al.Researchprogress in muli-scale percolation theory in shale micro-nanopores[J].Special Oil & Gas Reservoirs,2017,24(5):1-9.
[15]	赵建华,金之钧,金振奎,等.四川盆地五峰组-龙马溪组页岩岩相类型与沉积环境[J].石油学报,2016,37(5):572-586. ZHAO Jianhua,JIN Zhijun,JIN Zhenkui,et al.Lithofacies types and sedimentary environment of shale in Wufeng-Longmaxi formation,Sichuan Basin[J].Acta Petrolei Sinica,2016,37(5):572-586.
[16]	王玉满,王淑芳,董大忠,等.川南下志留统龙马溪组页岩岩相表征[J].地学前缘,2016,23(1):119-133. WANG Yuman,WANG Shufang,DONG Dazhong,et al.Lithofacies characterization of Longmaxi Formation of the Lower Silurian,southern Sichuan[J].Earth Science Frontiers,2016,23(1):119-133.
[17]	蒋裕强,宋益滔,漆麟,等.中国海相页岩岩相精细划分及测井预测:以四川盆地南部威远地区龙马溪组为例[J].地学前缘,2016,23(1):107-118. JIANG Yuqiang,SONG Yitao,QI Lin,et al.Fine lithofacies of China's marine shale and its logging prediction:A case study of the Lower Silurian Longmaxi marine shale in Weiyuan area,southern Sichuan Basin,China[J].Earth Science Frontiers,2016,23(1):107-118.
[18]	CURTIS M E,CARDOTT B J,SONDERGELD C H,et al.Development of organic porosity in the Woodford shale with increasing thermal maturity[J].International Journal of Coal Geology,2012,103:26-31.
[19]	DONG Tian,HARRIS N B,AYRANCI K,et al.Porosity characteristics of the Devonian Horn River shale,Canada:Insights from lithofacies classification and shale composition[J].International Journal of Coal Geology,2015,141-142:74-90.
[20]	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.
[21]	NELSON P H.Pore-throat sizes in sandstones,tight sandstones,and shales[J].AAPG Bulletin,2009,93(3):329-340.
[22]	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.
[23]	陈尚斌,夏筱红,秦勇,等.川南富集区龙马溪组页岩气储层孔隙结构分类[J].煤炭学报,2013,38(5):760-765. CHEN Shangbin,XIA Xiaohong,QIN Yong,et al.Classification of pore structures in shale gas reservoir at the Longmaxi Formation in the south of Sichuan Basin[J].Journal of China Coal Society,2013,38(5):760-765.
[24]	韩双彪,张金川,HORSFIELD B,等.页岩气储层孔隙类型及特征研究:以渝东南下古生界为例[J].地学前缘,2013,20(3):247-253. HAN Shuangbiao,ZHANG Jinchuan,HORSFIELD B,et al.Pore types and characteristics of shale gas reservoir:A case study of Lower Paleozoic shale in southeast Chongqing[J].Earth Science Frontiers,2013,20(3):247-253.
[25]	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. LIANG Chao,JIANG Zaixing,YANG Yiting,et al.Characteristics of shale lithofacies and reservoir space of the Wufeng-Longmaxi formation,Sichuan Basin[J].Petroleum Exploration and Development,2012,39(6):691-698.
[26]	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. LIU Shugen,MA Wenxin,LUBA J,et al.Characteristics of the shale gas reservoir rocks in the Lower Silurian Longmaxi Formation,east Sichuan Basin,China[J].Acta Petrologica Sinica,2011,27(8):2239-2252.
[27]	郭旭升,李宇平,刘若冰,等.四川盆地焦石坝地区龙马溪组页岩微观孔隙结构特征及其控制因素[J].天然气工业,2014,34(6):9-16. GUO Xusheng,LI Yuping,LIU Ruobing,et al.Characteristics and controlling factors of micro-pore structures of Longmaxi shale play in the Jiaoshiba area,Sichuan Basin[J].Natural Gas Industry,2014,34(6):9-16.
[28]	黄磊,申维.页岩气储层孔隙发育特征及主控因素分析:以上扬子地区龙马溪组为例[J].地学前缘,2015,22(1):374-385. HUANG Lei,SHEN Wei.Characteristics and controlling factors of the formation of pores of a shale gas reservoir:A case study from Longmaxi Formation of the Upper Yangtze region[J].Earth Science Frontiers,2015,22(1):374-385.