岩性油气藏 ›› 2017, Vol. 29 ›› Issue (4): 91–100.doi: 10.3969/j.issn.1673-8926.2017.04.011

• 油气地质 • 上一篇    下一篇

致密砂砾岩储层孔隙结构影响因素及定量评价——以玛湖凹陷玛131井区三叠系百口泉组为例

况晏1, 司马立强1, 瞿建华2, 温丹妮3, 陈猛1, 吴丰1   

  1. 1. 西南石油大学 地球科学与技术学院, 成都 610500;
    2. 中国石油新疆油田分公司 勘探开发研究院, 新疆 克拉玛依 834000;
    3. 中国石化西南石油工程有限公司 测井分公司, 成都 610500
  • 收稿日期:2016-12-06 修回日期:2017-02-15 出版日期:2017-07-21 发布日期:2017-07-21
  • 通讯作者: 司马立强(1961-),男,博士,教授,博士生导师,主要从事油气田测井方法、解释及地质应用研究。Email:1023110788@qq.com E-mail:1023110788@qq.com
  • 作者简介:况晏(1988-),女,西南石油大学在读博士研究生,研究方向为非常规储层测井资料解释及方法。地址:(610500)四川省成都市新都大道8号西南石油大学地球科学与技术学院。Email:493379512@qq.com
  • 基金资助:
    国家重点基础研究发展计划（973计划）项目“致密油多相多尺度流动机理及渗流理论”（编号：2015CB250902）资助

Influencing factors and quantitative evaluation for pore structure of tight glutenite reservoir:a case of the Triassic Baikouquan Formation in Ma 131 well field,Mahu Sag

KUANG Yan1, SIMA Liqiang1, QU Jianhua2, WEN Danni3, CHEN Meng1, WU Feng1   

  1. 1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
    2. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, Xingjiang, China;
    3. Logging Company, Southwest Petroleum Engineering Co., Ltd., Sinopec, Chengdu 610500, China
  • Received:2016-12-06 Revised:2017-02-15 Online:2017-07-21 Published:2017-07-21

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摘要： 为了探索致密砂砾岩储层孔隙结构定量评价方法，并为油田的高效开发提供有效手段，以玛湖凹陷玛131井区三叠系百口泉组致密砂砾岩储层为研究对象，根据铸体薄片、扫描电镜、压汞和核磁共振等资料，分析了砂砾岩的孔隙结构及其影响因素。基于孔隙结构评价特征参数（孔喉半径均值、饱和中值压力、变异系数、排驱压力、核磁大孔比率、T2几何均值）与储层品质因子（孔隙结构定量表征参数）的统计关系，探讨砂砾岩储层孔隙结构定量评价方法，建立了常规测井曲线连续表征储层品质因子计算模型，其计算结果与实验和油井测试结果相一致，从而实现了对玛131井区百口泉组地层条件下储层品质因子的连续、定量表征。该方法和研究结果可为玛湖凹陷及其类似地区储层孔隙结构定量评价提供参考。

关键词: 储层特征, 影响因素, 岩性油气藏, 深层勘探, 古近系, 霸县凹陷

Abstract: In order to study the quantitative evaluation method of pore structure of tight glutenite reservoir and to provide an effective method for oilfield development,the tight glutenite reservoir of Baikouquan Formation in Ma 131 well field of Mahu Sag was taken as an example, the data of cast thin sections, scanning electron microscope images, mercury injection curves and nuclear magnetic resonance(NMR)T2 spectra were used to study the pore structure and its influencing factors. Based on the statistical relationship between characteristic parameters for pore structure evaluation(average pore-throat radius,saturation median pressure, variation coefficient, displacement pressure, NMR macroporous ratio and T2 geometric mean values)and reservoir quality factors(quantitative characterization parameter of pore structure),the quantitative evaluation method of pore structure of glu-tenite reservoir was discussed,and then the calculation model for continuously characterizing the reservoir quality factor was established by using conventional well log data. The calculation result has a good consistence with experimental data and oil well test data. The continuous and quantitative characterization of reservoir quality factor of Baikouquan Formation in Ma 131 well field was carried out. This result could provide reference for the quantitative characterization of pore structure in Mahu Sag or other similar area.

Key words: reservoir characteristics, influencing factors, lithologic reservoirs, deep zones exploration, Paleogene, Baxian Sag

中图分类号: 

  • TE122.2
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