特种油气藏 ›› 2025, Vol. 32 ›› Issue (6): 78-85.DOI: 10.3969/j.issn.1006-6535.2025.06.009

• 地质勘探 • 上一篇    下一篇

靖边气田盒8致密砂岩储层泥质含量预测

罗广惠1,2,3, 代恒4, 余杰4, 张小莉1,2,3, 杨懿5, 李亚军6, 阎媛子7, 周志杰1,2,3   

  1. 1.西北大学,陕西 西安 710069;
    2.二氧化碳捕集与封存国家地方联合工程研究中心,陕西 西安 710069;
    3.陕西省碳中和技术重点实验室,陕西 西安 710069;
    4.中国石油长庆油田分公司,陕西 西安 710016;
    5.西安石油大学,陕西 西安 710065;
    6.延安大学,陕西 延安 716000;
    7.陕西能源职业技术学院,陕西 咸阳 712099
  • 收稿日期:2024-12-05 修回日期:2025-08-05 出版日期:2025-12-25 发布日期:2025-12-31
  • 通讯作者: 张小莉(1968—),女,教授,1988年毕业于西北大学石油与天然气地质专业,2006年毕业于中国石油大学(华东)地质资源与地质工程专业,获博士学位,现主要从事测井资料处理与解释、二氧化碳地质封存方面的教学与科研工作。
  • 作者简介:罗广惠(1999—),女,2021年毕业于重庆科技学院勘查技术与工程专业,现为西北大学地质学专业在读硕士研究生,主要从事测井资料处理与解释、二氧化碳地质封存方面的研究工作。
  • 基金资助:
    陕西省自然科学基础研究计划“二氧化碳捕集、利用与封存研究”(2024JC-DXWT-06)、“二氧化碳咸水层封存选址优化研究”(2022JC-DW-09);陕西省自然科学基础研究计划一般项目(青年)“二氧化碳地质封存过程中超临界二氧化碳-水-岩石作用机理研究”(2023-JC-QN-0373)

Prediction of shale content in tight sandstone reservoirs of the Lower He 8 Member in Jingbian Gasfield

LUO Guanghui1,2,3, DAI Heng4, YU Jie4, ZHANG Xiaoli1,2,3, YANG Yi5, LI Yajun6, YAN Yuanzi7, ZHOU Zhijie1,2,3   

  1. 1. Northwest University, Xi′an, Shaanxi 710069,China;
    2. National & Local Joint Engineering Research Center of Carbon Capture and Storage Technology, Xi′an, Shaanxi 710069, China;
    3. Shaanxi Provincial Key Laboratory of Carbon Neutrality Technology, Xi′an, Shaanxi 710069, China;
    4. PetroChina Changqing Oilfield Company, Xi′an, Shaanxi 710016, China;
    5. Xi′an Petroleum University, Xi′an, Shaanxi 710065, China;
    6. Yan′an University, Yan′an, Shaanxi 716000, China;
    7. Shaanxi Energy Institute, Xianyang, Shaanxi 712099, China
  • Received:2024-12-05 Revised:2025-08-05 Online:2025-12-25 Published:2025-12-31

摘要: 针对鄂尔多斯盆地上古生界石盒子组盒8致密砂岩储层砂岩类型复杂多变、岩性及有效储层识别不清、孔隙度测井解释精度低等问题,通过对石英砂岩、岩屑石英砂岩和岩屑砂岩测井响应特征的分析,建立3类砂岩的泥质含量预测模型。结果表明:石英砂岩、岩屑石英砂岩和岩屑砂岩的自然伽马测井值分布区间变化范围大,自然伽马测井最小值分别为20.0、30.0、40.0 API;泥质含量预测模型绝对误差均小于5.0%,该模型预测精度可靠。该成果可为研究区岩性识别及有效储层预测提供技术支撑,同时可对其他复杂致密砂岩储层泥质含量及孔隙度的计算提供借鉴。

关键词: 泥质含量, 致密砂岩, 低孔低渗储层, 盒8, 测井响应特征, 靖边气田

Abstract: To address challenges such as complex and variable sandstone types, unclear identification of lithology and effective reservoirs and low accuracy in porosity log interpretation in the tight sandstone reservoir of the Lower He 8 Member of the Upper Paleozoic Shihezi Formation in the Ordos Basin, a prediction model for shale content of these three types of sandstone was established through analysis of the logging response characteristics of quartz sandstone, lithic quartz sandstone and lithic sandstone. The results indicate that the distribution ranges of natural gamma logging values for quartz sandstone, lithic quartz sandstone and lithic sandstone are large, with minimum values of 20.0, 30.0 and 40.0 API respectively;The absolute error of the shale content prediction model is less than 5.0%, indicating reliable prediction accuracy of the model. This achievement can provide technical support for lithology identification and effective reservoir prediction in the study area and also provide reference for calculating shale content and porosity in other complex tight sandstone reservoirs.

Key words: shale content, tight sandstone, low porosity and low permeability reservoir, Lower He 8 Member, logging response characteristics, Jingbian Gasfield

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