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    雷竞技app官方版下载ios-雷竞技官方平台

    何陈诚,  赵永强,  俞凌杰,  卢龙飞,  刘伟新,  潘安阳,  李楚雄

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    文章导航 > 石油实验地质  > 2024 >  46(2): 263-277
    何陈诚, 赵永强, 俞凌杰, 卢龙飞, 刘伟新, 潘安阳, 李楚雄. 雷竞技app官方版下载ios-雷竞技官方平台[J]. 石油实验地质, 2024, 46(2): 263-277. doi: 10.11781/sysydz202402263
    引用本文:
    何陈诚, 赵永强, 俞凌杰, 卢龙飞, 刘伟新, 潘安阳, 李楚雄. 雷竞技app官方版下载ios-雷竞技官方平台[J]. 石油实验地质, 2024, 46(2): 263-277. doi: 10.11781/sysydz202402263
    shu
    HE Chencheng, ZHAO Yongqiang, YU Lingjie, LU Longfei, LIU Weixin, PAN Anyang, LI Chuxiong. Pore structure and fractal characteristics of deep shale gas reservoirs in the Permian Dalong Formation, northeastern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(2): 263-277. doi: 10.11781/sysydz202402263
    Citation:
    HE Chencheng, ZHAO Yongqiang, YU Lingjie, LU Longfei, LIU Weixin, PAN Anyang, LI Chuxiong. Pore structure and fractal characteristics of deep shale gas reservoirs in the Permian Dalong Formation, northeastern Sichuan Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(2): 263-277. doi: 10.11781/sysydz202402263
    shu

    雷竞技app官方版下载ios-雷竞技官方平台

    doi: 10.11781/sysydz202402263
  • 何陈诚1, 2, 3, 4, , 
  • 赵永强1, 2, 3, 4, , , 
  • 俞凌杰1, 2, 3, 4, 
  • 卢龙飞1, 2, 3, 4, 
  • 刘伟新1, 2, 3, 4, 
  • 潘安阳1, 2, 3, 4, 
  • 李楚雄1, 2, 3, 4
  • 1.

    中国石化 石油勘探开发研究院 无锡石油地质研究所, 江苏 无锡 214126

  • 2.

    中国石化 油气成藏重点实验室, 江苏 无锡 214126

  • 3.

    雷竞技app官方版下载ios油气富集机理与高效开发全国重点实验室, 江苏 无锡 214126

  • 4.

    国家能源雷竞技app官方版下载ios油研发中心, 江苏 无锡 214126

    • 基金项目: 

    国家自然科学基金 U19B6003-03

    国家自然科学基金 41972164

    中国石化科技部项目 P23132

    详细信息
    作者简介:

    何陈诚(1990—)，女，博士，从事雷竞技app官方版下载ios油气地质研究。E-mail: hechencheng.syky@sinopec.com

    通讯作者:

    赵永强(1973—)，男，博士，研究员，本刊编委，从事油气成藏研究。E-mail: zhaoyq.syky@sinopec.com

  • 中图分类号: TE122.2

  • 文章访问数:  114
  • HTML全文浏览量:  30
  • PDF下载量:  38
  • 被引次数: 0
    • 出版历程
  • 收稿日期:  2023-03-07
  • 修回日期:  2024-01-31
  • 刊出日期:  2024-03-28

    • Pore structure and fractal characteristics of deep shale gas reservoirs in the Permian Dalong Formation, northeastern Sichuan Basin

  • HE Chencheng1, 2, 3, 4 ,  , 
  • ZHAO Yongqiang1, 2, 3, 4 , ,  , 
  • YU Lingjie1, 2, 3, 4 , 
  • LU Longfei1, 2, 3, 4 , 
  • LIU Weixin1, 2, 3, 4 , 
  • PAN Anyang1, 2, 3, 4 , 
  • LI Chuxiong1, 2, 3, 4
  • 1.

    Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • 2.

    SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China

  • 3.

    State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Efficient Development, Wuxi, Jiangsu 214126, China

  • 4.

    State Energy Center for Shale Oil Research and Development, Wuxi, Jiangsu 214126, China

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  • 雷竞技官方平台: 雷竞技app官方版下载ios储层特性是影响雷竞技app官方版下载ios气富集和开采的关键因素之一。四川盆地北部发育的上二叠统大隆组是重要的海相优质烃源岩，而针对川东北地区大隆组雷竞技app官方版下载ios储层的研究还有待深入。以川东北地区大隆组深层雷竞技app官方版下载ios为研究对象，利用高分辨率场发射扫描电镜、二氧化碳吸附、氮吸附及高压压汞等技术，开展大隆组深层雷竞技app官方版下载ios储层不同孔径孔隙结构的定性—定量研究，并运用基于二氧化碳吸附的V-S模型、氮吸附的FHH模型和高压压汞的分形几何模型对不同孔径的孔隙进行分形拟合，表征雷竞技app官方版下载ios孔隙结构的复杂程度和非均质性特征。结果表明，川东北地区大隆组深层雷竞技app官方版下载ios储层发育丰富的纳米级有机孔和少量的无机孔，有机孔发育特征随有机质显微组分不同和分布形式差异而显示强的非均质性。大隆组深层雷竞技app官方版下载ios孔隙结构与龙马溪组深层雷竞技app官方版下载ios相似，以介孔和微孔为主，占总孔体积的90%以上；雷竞技app官方版下载ios孔隙结构主要受有机质丰度的影响。分形特征研究结果显示，深层雷竞技app官方版下载ios宏孔非均质性强于介孔和微孔。其原因可能为深层雷竞技app官方版下载ios微孔孔径较小，分布集中，成因单一，受成岩作用影响较小，孔隙结构较为简单，具有较小分形维数；而宏孔孔径较大，分布范围较广，成因多样，易受成岩作用影响，表现出强非均质性。深层雷竞技app官方版下载ios微孔—介孔因其丰富的储集空间和较强的自相似性，有利于雷竞技app官方版下载ios气的赋存、渗流和开采。

     

    关键词:
  • 非均质性 / 
  • 分形维数 / 
  • 孔隙结构 / 
  • 雷竞技app官方版下载ios储层 / 
  • 大隆组 / 
  • 二叠系 / 
  • 川东北地区 
    • Abstract: The characteristics of shale reservoirs play a crucial role in the enrichment and exploitation of shale gas. The Upper Permian Dalong Formation in the northern Sichuan Basin is a significant marine-derived high-quality hydrocarbon source rock that requires further detailed investigation. This study conducted qualitative and quantitative analyses on the pore structure of deep shale reservoirs within the Permian Dalong Formation in northeastern Sichuan. Various methods such as high-resolution field emission scanning electron microscopy, CO2 adsorption, N2 adsorption, and high-pressure Hg injection measurements were employed. Fractal fitting using the V-S model based on CO2 adsorption, the FHH model based on N2 adsorption, and the fractal geometry model based on high-pressure Hg injection was utilized to characterize the pore structure of deep shale. The findings revealed that deep shale reservoirs in the Dalong Formation in northeastern Sichuan Basin contain abundant nano-scale organic pores and limited inorganic pores. The development of organic pores exhibits strong heterogeneity influenced by maceral differences and organic matter distribution. Similar to Longmaxi Formation shale, the pores in the Dalong Formation are predominantly micropores and mesopores, comprising over 90% of the total pore volume and primarily influenced by organic matter abundance. The research on fractal dimension characteristics suggests that macropores in deep shale exhibit stronger heterogeneity compared to mesopores and micropores. Due to their smaller size and minimal diagenetic impact, micropores and mesopores have simpler structures with lower fractal dimensions. On the other hand, macropores display significant heterogeneity due to their larger size, wide distribution range, diverse genesis, and susceptibility to diagenesis. Due to their abundant reservoir space and strong self-similarity, micropores and mesopores in deep shale are conducive to the occurrence, seepage and exploitation of shale gas.

     

    Key words:
  • heterogeneity / 
  • fractal dimension / 
  • pore structure / 
  • shale reservoir / 
  • Dalong Formation / 
  • Permian / 
  • northeastern Sichuan Basin 
    • HTML全文

  • 图  1  四川盆地北部区域构造位置(a)及二叠系大隆组沉积相分布(b)

    修改自文献[24-25]。

    Figure  1.  Tectonic location of northern Sichuan Basin (a) and sedimentary facies distribution of Permian Dalong Formation (b)

    下载: 全尺寸图片 幻灯片

    图  2  川东北地区二叠系大隆组深层雷竞技app官方版下载ios储层物性分布

    Figure  2.  Porosity and permeability of deep shale in Permian Dalong Formation, northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  3  川东北地区A井二叠系大隆组深层雷竞技app官方版下载ios储层孔隙发育特征

    a.顺层分布的纹层状有机质；b.纹层状有机质中孔隙差异发育；c.海绵状有机孔；d.充填粒状有机质；e.草莓状黄铁矿莓球间的絮状有机质；f.e图放大, 有机孔发育；g-h.具有生物母质结构的有机质，发育原生有机孔；i.粒间孔；j.黏土矿物孔；k.次生溶蚀孔；l.矿物或有机质边缘缝。

    Figure  3.  Pore development characteristics of deep shale samples from Permian Dalong Formation in well A, northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  4  川东北地区二叠系大隆组深层雷竞技app官方版下载ios储层全孔径联合表征分布

    Figure  4.  Pore size distribution of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  5  川东北地区二叠系大隆组深层雷竞技app官方版下载ios微孔—介孔—宏孔体积占比分布

    Figure  5.  Volume ratio of micropores, mesoporous pores and macropores of deep shale from Permian Dalong Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  6  川东北地区二叠系大隆组深层雷竞技app官方版下载ios储层有机孔统计示意(a)及有机孔孔径分布(b)

    Figure  6.  Statistics of organic pores (a) and distribution of organic pore diameters (b) of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  7  川东北地区二叠系大隆组深层雷竞技app官方版下载ios微孔分形维数计算结果(CO2吸附)

    Figure  7.  Calculation results of microporous fractal dimension of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin (CO2 adsorption)

    下载: 全尺寸图片 幻灯片

    图  8  川东北地区二叠系大隆组深层雷竞技app官方版下载ios微孔—介孔分形维数计算结果(N2吸附)

    Figure  8.  Calculation results of microporous-mesoporous fractal dimension of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin (N2 adsorption)

    下载: 全尺寸图片 幻灯片

    图  9  川东北地区二叠系大隆组深层雷竞技app官方版下载ios宏孔分形维数计算结果(高压压汞)

    Figure  9.  Calculation results of macropore fractal dimension of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin (high pressure Hg injection)

    下载: 全尺寸图片 幻灯片

    图  10  川东北地区二叠系大隆组深层雷竞技app官方版下载ios总孔容、比表面积与矿物组成的关系

    Figure  10.  Relationship between total pore volume, specific surface area and mineral composition of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  11  川东北地区二叠系大隆组深层雷竞技app官方版下载ios孔隙结构与矿物组成的关系

    Figure  11.  Relationship between pore structure and mineral composition of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    图  12  川东北地区二叠系大隆组和志留系龙马溪组深层雷竞技app官方版下载ios孔隙分形维数与雷竞技app官方版下载ios矿物组成的关系

    Figure  12.  Relationship between pore fractal dimension and mineral composition of deep shale samples from Permian Dalong Formation and Silurian Longmaxi Formation in northeastern Sichuan Basin

    下载: 全尺寸图片 幻灯片

    表  1  川东北地区二叠系大隆组深层雷竞技app官方版下载ios样品基本信息及孔隙结构参数

    Table  1.   Basic information and pore structure parameters of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    编号
    孔隙度/%
    ω(TOC)/%
    石英/%
    黏土矿物/%
    碳酸盐矿物/%
    黄铁矿/%
    微孔体积/(mL/g)
    介孔体积/(mL/g)
    宏孔体积/(mL/g)
    BET比表面积/(m2/g)
    A-1
    1.38
    10.3
    6.8
    79.9
    1.9
    0.001 2
    0.002 4
    0.000 3
    4.443
    A-2
    7.2
    11.69
    20.3
    16.7
    40.6
    17.6
    0.011 9
    0.022 8
    0.001 1
    46.383
    A-3
    1.2
    1.95
    6.6
    5.1
    86.7
    0.6
    0.001 5
    0.003 0
    0.001 1
    5.344
    A-4
    6.0
    9.67
    56.6
    15.5
    17.6
    6.0
    0.009 1
    0.013 0
    0.001 5
    32.626
    A-5
    1.8
    2.73
    71.2
    5.6
    18.8
    3.3
    0.002 9
    0.003 7
    0.000 8
    8.305
    A-6
    8.6
    12.57
    68.0
    13.6
    5.7
    10.1
    0.016 0
    0.033 4
    0.001 7
    59.645
    A-7
    4.2
    4.71
    70.5
    11.5
    12.5
    4.1
    0.005 0
    0.007 6
    0.001 1
    13.805
    A-8
    5.2
    13.36
    44.9
    22.4
    17.2
    11.2
    0.021 1
    0.028 2
    0.000 8
    69.893
    A-9
    8.1
    10.54
    66.8
    16.1
    8.4
    6.2
    0.014 6
    0.027 8
    0.001 8
    57.008
    A-10
    4.0
    4.36
    71.3
    6.7
    18.0
    3.4
    0.007 4
    0.014 4
    0.001 4
    28.254
    A-11
    2.5
    2.93
    69.0
    9.0
    16.5
    1.5
    0.003 1
    0.003 1
    0.001 0
    7.911
    A-12
    2.6
    2.09
    76.7
    9.7
    10.0
    1.9
    0.003 5
    0.003 6
    0.000 6
    8.163
    下载: 导出CSV

    表  2  川东北地区二叠系大隆组深层雷竞技app官方版下载ios孔隙结构分形特征参数

    Table  2.   Fractal characteristics of pore structure of deep shale samples from Permian Dalong Formation in northeastern Sichuan Basin

    编号
    ω(TOC)/%
    DC
    R2
    DN1
    R2
    DN2
    R2
    Dm
    R2
    A-1
    1.38
    2.601 7
    0.995 8
    2.761 4
    0.991 0
    2.819 4
    0.998 1
    2.841 6
    0.994 4
    A-2
    11.69
    2.571 4
    0.994 6
    2.743 4
    0.993 8
    2.840 8
    0.985 4
    2.972 5
    0.994 2
    A-3
    1.95
    2.539 4
    0.998 6
    2.736 7
    0.992 8
    2.818 4
    0.981 6
    2.950 2
    0.982 2
    A-4
    9.67
    2.537 0
    0.995 4
    2.767 7
    0.992 7
    2.872 2
    0.984 4
    2.956 1
    0.979 0
    A-5
    2.73
    2.421 3
    0.998 0
    2.757 3
    0.992 3
    2.861 5
    0.970 6
    2.954 1
    0.995 8
    A-6
    12.57
    2.489 6
    0.995 2
    2.725 0
    0.995 6
    2.819 4
    0.976 3
    2.982 2
    0.984 9
    A-7
    4.71
    2.354 2
    0.996 6
    2.734 1
    0.995 1
    2.820 2
    0.978 7
    2.966 8
    0.991 4
    A-8
    13.36
    2.488 4
    0.995 2
    2.740 6
    0.995 1
    2.877 2
    0.909 1
    2.983 6
    0.989 9
    A-9
    10.54
    2.555 2
    0.994 9
    2.742 1
    0.994 5
    2.842 6
    0.961 4
    2.976 5
    0.984 8
    A-10
    4.36
    2.603 3
    0.994 6
    2.727 9
    0.995 8
    2.837 1
    0.945 1
    2.954 4
    0.975 7
    A-11
    2.93
    2.520 4
    0.998 9
    2.773 5
    0.988 9
    2.873 2
    0.983 4
    2.942 6
    0.992 3
    A-12
    2.09
    2.687 0
    0.997 9
    2.760 1
    0.994 1
    2.858 4
    0.977 8
    2.959 2
    0.992 9
    下载: 导出CSV
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