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滇东曲靖地区下寒武统筇竹寺组泥页岩储层特征研究

白名岗 张聪 杨玉茹 代峰 熊杰

白名岗, 张聪, 杨玉茹, 等, 2017. 滇东曲靖地区下寒武统筇竹寺组泥页岩储层特征研究. 地质力学学报, 23 (6): 838-845.
引用本文: 白名岗, 张聪, 杨玉茹, 等, 2017. 滇东曲靖地区下寒武统筇竹寺组泥页岩储层特征研究. 地质力学学报, 23 (6): 838-845.
BAI Minggang, ZHANG Cong, YANG Yuru, et al., 2017. THE CHARACTERISTICS OF SHALE RESERVOIR FROM QIONGZHUSI FORMATION IN LOWER CAMBRIAN IN QUJING AREA, EASTERN YUNNAN PROVINCE, CHINA:A CASE STUDY OF WELL QUYE NO.1. Journal of Geomechanics, 23 (6): 838-845.
Citation: BAI Minggang, ZHANG Cong, YANG Yuru, et al., 2017. THE CHARACTERISTICS OF SHALE RESERVOIR FROM QIONGZHUSI FORMATION IN LOWER CAMBRIAN IN QUJING AREA, EASTERN YUNNAN PROVINCE, CHINA:A CASE STUDY OF WELL QUYE NO.1. Journal of Geomechanics, 23 (6): 838-845.

滇东曲靖地区下寒武统筇竹寺组泥页岩储层特征研究

基金项目: 

国家科技重大专项项目 2016ZX05034-003-006

地质矿产调查评价专项项目 DD2016178

详细信息
    作者简介:

    白名岗(1962-), 男, 大专, 工程师, 从事页岩气、天然气水合物等非常规油气基础地质调查和实验测试研究。E-mail:baimg1551@163.com

    通讯作者:

    张聪(1986-), 女, 博士研究生, 工程师, 主要从事页岩气基础地质调查和相关实验测试研究。E-mail:zh_cong520@qq.com

  • 中图分类号: P618.13

THE CHARACTERISTICS OF SHALE RESERVOIR FROM QIONGZHUSI FORMATION IN LOWER CAMBRIAN IN QUJING AREA, EASTERN YUNNAN PROVINCE, CHINA:A CASE STUDY OF WELL QUYE NO.1

  • 摘要: 下寒武统筇竹寺组页岩是南方页岩气勘查开发重点关注的层位之一,但滇东地区下寒武统筇竹寺组黑色页岩储层研究程度较低。样品采自2014年新钻的曲页1井,对下寒武统筇竹寺组黑色泥页岩进行全岩和粘土矿物X衍射分析、TOC、岩石物性、比表面积等测试和扫描电镜实验,综合分析了滇东曲靖地区筇竹寺组泥页岩储层特征及孔隙类型。结果表明:滇东曲靖地区下寒武统筇竹寺组泥页岩矿物组成主要是石英(44.75%)、粘土矿物(25.47%)、长石(16.44%);发育粒间孔、粒内孔和有机孔3种类型孔隙;有机质孔隙发育,以中孔为主,具有一定的页岩气勘探开发潜力;页岩储层自上而下孔隙体积有逐渐变小的趋势,但在井深400 m~500 m发育高孔隙体积;泥页岩储集性能的重要指标—孔隙度主要受有机质含量及发育程度的制约。

     

  • 图  1  工区地质简图及曲页1井位置

    F1—小江断裂;F2—鲁冲-车乌大断层;F3—宣威断层;F4—昭通-曲靖隐伏深大断裂;F5—十里铺断层;F6—法戛大断层;F7—弥勒-师宗深大断裂

    Figure  1.  Geological map of the study area and the location of Well Quye NO. 1

    图  2  曲页1井下寒武统筇竹寺组采样点及地层柱状图

    Figure  2.  Sampling sites and stratum histogram in lower Cambrian Qiongzhusi formation, Well Quye NO. 1

    图  3  曲页1井下寒武统筇竹寺组泥页岩矿物成分及粘土矿物含量

    Figure  3.  Mineral composition and clay content of shales in Qiongzhusi formation in lower Cambrian, Well Quye NO. 1

    图  4  曲页1井下寒武统筇竹寺组泥页岩矿物成分纵向变化特征

    Figure  4.  Vertical variation of mineral composition of shales in Qiongzhusi formation in lower Cambrian, Well Quye NO. 1

    图  5  曲页1井下寒武统筇竹寺组泥页岩储集空间类型

    a-粘土矿物粒间;b-溶蚀孔;c-溶蚀孔;d-有机质孔

    Figure  5.  Scanning electron microscope images of pore types in shales in Qiongzhusi formation in lower Cambrian, Well Quye NO.1

    图  6  曲页1井下寒武统筇竹寺组泥页岩中孔体积纵向变化特征

    Figure  6.  Vertical variation of mesopore volume of shales in Qiongzhusi formation in lower Cambrian, Well Quye NO.1

    图  7  曲页1井筇竹寺组黑色页岩中孔体积和有机碳、石英含量关系

    Figure  7.  Corelation between the mesopore volumn and the content of TOC & quartz in the dark shales in the Qiongzhusi formation, Well Quye NO. 1

    表  1  曲页1井下寒武统筇竹寺组泥页岩孔隙度和渗透率

    Table  1.   Porosity vs. permeability of shales in Qiongzhusi formation in lower Cambrian, Well Quye NO. 1

    样品
    编号
    埋深
    /m
    孔隙度
    /%
    渗透率
    /×10-3μm2
    QY1-Y57 276.03 1.78 0.0193
    QY1-Y56 281.26 1.56 0.0184
    QY1-J4 295.03 2.18 0.0136
    QY1-J5 301.94 3.01 0.0275
    QY1-Y52 302.95 1.94 0.0196
    QY1-Y50 313.75 1.35 0.0476
    QY1-Y48 324.29 1.73 0.0149
    QY1-J9 326.42 2.45 0.0361
    QY1-Y47 328.54 1.69 0.0190
    QY1-Y46 333.39 1.14 0.0188
    QY1-J13 362.48 2.57 0.0275
    QY1-Y41 371.07 1.64 0.0170
    QY1-Y40 378.8 2.24 0.0153
    QY1-J16 388.19 2.00 0.0116
    QY1-J18 402.37 1.18 0.0030
    QY1-J19 415.83 0.77 0.0076
    QY1-J21 430.6 1.82 0.0110
    QY1-J23 442.31 0.86 0.0103
    QY1-Y33 442.75 1.94 0.0429
    QY1-J25 451.23 1.18 0.0121
    QY1-J27 457.06 2.10 0.0088
    QY1-Y32 457.66 2.34 0.0399
    QY1-J29 463.02 1.59 0.0067
    QY1-J31 469.14 1.61 0.0117
    QY1-Y30 471.00 1.72 0.0308
    QY1-J32 474.12 1.72 0.0078
    QY1-Y28 484.47 2.17 0.0256
    QY1-J34 484.64 1.81 0.0077
    QY1-Y27 492.56 0.91 0.0211
    QY1-J36 496.78 1.43 0.0113
    QY1-Y26 498.44 0.38 0.0179
    QY1-Y25 501.06 0.48 0.0279
    QY1-J38 513.22 1.07 0.0103
    QY1-Y22 523.81 1.88 0.0255
    QY1-Y20 535.75 0.81 0.0276
    QY1-J40 535.91 1.89 0.0073
    QY1-Y18 547.95 0.26 0.0104
    QY1-Y17 552.47 1.47 0.0150
    QY1-Y16 556.93 0.37 0.0183
    QY1-Y14 567.17 1.65 0.0162
    QY1-Y13 572.19 1.15 0.0095
    下载: 导出CSV

    表  2  曲页1井下寒武统筇竹寺组泥页岩比表面积测试结果

    Table  2.   Test results of specific surface area of shales in Qiongzhusi formation in lower Cambrian, Well Quye NO. 1

    样品编号 QY1-J1 QY1-J5 QY1-J9 QY1-J11 QY1-J13 QY1-J15 QY1-J19 QY1-J21 QY1-J23 QY1-J25 QY1-J27 QY1-J32 QY1-J36 QY1-J38 QY1-J40
    井深/m 245.75 301.94 326.42 338.15 362.48 382.89 415.83 430.6 442.31 451.23 457.06 474.12 496.78 513.22 535.91
    表面积/(m2/g) 5.3130 3.9960 4.0330 3.2980 2.0870 2.8000 10.5310 6.1420 1.8000 4.3920 4.2500 4.7990 8.2760 1.9500 2.6860
    孔隙体积/(ml/g) 0.0103 0.0076 0.0074 0.0068 0.0050 0.0060 0.0147 0.0116 0.0030 0.0072 0.0096 0.0081 0.0118 0.0042 0.0054
    平均孔径/nm 3.8690 3.7985 3.6923 4.1234 4.8119 4.2959 2.7823 3.7632 3.3439 3.2928 4.5177 3.3714 2.8579 4.2600 4.0343
    下载: 导出CSV
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