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准西苏13井区石炭系火成岩有效储层物性下限

宋明水 张学才 周广清 曹海防 李静 孙鲁宁

宋明水, 张学才, 周广清, 等, 2019. 准西苏13井区石炭系火成岩有效储层物性下限. 地质力学学报, 25 (6): 1075-1081. DOI: 10.12090/j.issn.1006-6616.2019.25.06.090
引用本文: 宋明水, 张学才, 周广清, 等, 2019. 准西苏13井区石炭系火成岩有效储层物性下限. 地质力学学报, 25 (6): 1075-1081. DOI: 10.12090/j.issn.1006-6616.2019.25.06.090
SONG Mingshui, ZHANG Xuecai, ZHOU Guangqing, et al., 2019. LOWER LIMITS OF PHYSICAL PROPERTIES OF EFFECTIVE CARBONIFEROUS IGNEOUS RESERVOIR IN SU13 WELL BLOCK OF WEST JUNGGAR BASIN. Journal of Geomechanics, 25 (6): 1075-1081. DOI: 10.12090/j.issn.1006-6616.2019.25.06.090
Citation: SONG Mingshui, ZHANG Xuecai, ZHOU Guangqing, et al., 2019. LOWER LIMITS OF PHYSICAL PROPERTIES OF EFFECTIVE CARBONIFEROUS IGNEOUS RESERVOIR IN SU13 WELL BLOCK OF WEST JUNGGAR BASIN. Journal of Geomechanics, 25 (6): 1075-1081. DOI: 10.12090/j.issn.1006-6616.2019.25.06.090

准西苏13井区石炭系火成岩有效储层物性下限

doi: 10.12090/j.issn.1006-6616.2019.25.06.090
基金项目: 

国家科技重大专项 2016ZX05002-002

国家自然科学基金 41972138

详细信息
    作者简介:

    宋明水(1964-), 男, 博士, 教授级高级工程师, 主要从事油气勘探技术研究与管理工作。E-mail:songmingshuiupc@163.com

    通讯作者:

    李静(1967-), 女, 博士, 教授, 博士生导师, 地质力学及油气储层预测。E-mail:lijing0681@163.com

  • 中图分类号: P618.13

LOWER LIMITS OF PHYSICAL PROPERTIES OF EFFECTIVE CARBONIFEROUS IGNEOUS RESERVOIR IN SU13 WELL BLOCK OF WEST JUNGGAR BASIN

  • 摘要: 有效储层物性下限是进行储层有效厚度统计、储层划分和油藏储量估算的重要依据,研究区石炭系火成岩储层岩性较为复杂,岩石种类较多、组分差异性大并且空间分布及内中的多种属性有着极不匀称的变化,当前国内外学者利用物探资料来判断准西石炭系火成岩有效储层物性下限值的相关研究较少。采用分布函数曲线法和物性试油法分别研究并互相验证进而综合判定物性下限值,避免单一方法的随机性。在此基础上,求取研究区不同层段的物性下限值,建立有效储层物性下限值与储层埋藏深度的拟合方程。研究结果表明:研究区储层多为低孔、中低渗储层,中部区域孔渗相对较高,物性较好,向北部和南部物性逐渐变差;研究区石炭系1500~1900 m及1900~2300 m火成岩有效储层孔隙度下限分别为5.09%、4.93%,渗透率下限分别为0.252 mD、0.198 mD;研究区石炭系火成岩有效储层物性下限与储层埋藏深度呈负相关。

     

  • 图  1  研究区区域构造位置图

    Figure  1.  Location map of regional structure of the study area

    图  2  研究区孔渗平面分布图

    Figure  2.  Planar distribution map of porosity and permeability

    图  3  研究区物性分布直方图

    Figure  3.  The histogram of physical property distribution

    图  4  研究区不同深度有效储层孔隙度频率分布曲线

    Figure  4.  The porosity frequency distribution curves of effective reservoirs with different depths in the study area

    图  5  研究区不同深度有效储层渗透率频率分布曲线

    Figure  5.  The permeability frequency distribution curves of effective reservoirs with different depths in the study area

    图  6  研究区不同深度有效储层物性交会图

    Figure  6.  Physical property crossplot of effective reservoirs at different depths in the study area

    图  7  研究区石炭系有效储层物性下限与深度关系图

    Figure  7.  The relationship between lower limit of physical property and depth of the carboniferous effective reservoir in the study area

    表  1  石油天然气行业火成岩储层分类评价标准

    Table  1.   Classification and evaluation criteria of igneous reservoirs in petroleum and natural gas industry

    孔隙度范围/% 孔隙度分类 渗透率范围/mD 渗透率分类 储层评价
    φ≥15 高孔 10≤K 高渗 Ⅰ类
    10≤φ<15 较高孔 5≤K<10 较高渗
    5≤φ<10 中孔 1≤K<5 中渗 Ⅱ类
    3≤φ<5 低孔 0.1≤K<1 低渗 Ⅲ类
    φ<3 特低孔 K<0.1 特低渗
    下载: 导出CSV

    表  2  研究区物性特征

    Table  2.   Physical characteristics of effective reservoirs in the study area

    井号 地层 孔隙度范围/% 孔隙度均值/% 渗透率范围/mD 渗透率均值/mD 评价
    苏13井 石炭系 3.10~7.84 5.31 0.03~1.21 0.43 中孔、低渗
    苏1-13井 石炭系 1.01~13.67 4.69 0.10~25.00 1.82 低孔、中渗
    苏1-18井 石炭系 0.68~14.00 4.19 0.10~41.09 2.30 低孔、中渗
    苏1-5井 石炭系 2.38~10.69 4.74 0.01~4.04 0.51 低孔、低渗
    苏131井 石炭系 1.38~6.57 2.68 0.10~0.55 0.14 特低孔、低渗
    苏2井 石炭系 1.23~3.94 2.76 0.10~0.20 0.13 特低孔、低渗
    苏1-22井 石炭系 1.61~11.40 4.55 0.10~10.06 0.89 低孔、低渗
    苏132井 石炭系 0.52~6.96 2.90 0.10~0.52 0.16 特低孔、低渗
    下载: 导出CSV

    表  3  分布函数曲线法与试油法的对比分析

    Table  3.   Comparative analysis of the distribution function curve method and the oil test method

    深度/m 孔隙度下限值 渗透率下限值
    分布函数法/% 试油法/% 相对误差/% 分布函数法/mD 试油法/mD 相对误差/%
    1500~1900 5.05 5.11 1.17 0.24 0.26 7.69
    1900~2300 4.90 4.95 1.01 0.18 0.21 14.28
    下载: 导出CSV
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  • 收稿日期:  2018-09-14
  • 修回日期:  2018-11-16
  • 刊出日期:  2019-12-31

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