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现代地质 ›› 2012, Vol. 26 ›› Issue (6): 1258-1264.

• 油气资源勘查 • 上一篇    下一篇

基于地质统计学反演的碳酸盐岩孔缝洞预测研究

孙炜1,王彦春1,李玉凤2,王大全3,徐伟1,韩磊4   

  1. 1 中国地质大学 地球物理信息技术学院,北京100083;2 中国石化 胜利油田物探研究院,山东 东营257022;
    3 中国石化集团西南石油局 云南物探公司,云南 昆明650233;4 中国石化 石油勘探开发研究院,北京100083
  • 收稿日期:2012-06-15 修回日期:2012-09-06 出版日期:2012-10-24 发布日期:2012-10-31
  • 作者简介:孙炜,男,博士研究生,1984年出生,地球探测与信息技术专业,主要从事储层预测及裂缝预测相关研究。Email:seagleff@126.com。

Fractures and Solution Pore Prediction in Carbonate Reservoirs Based on Geostatistics Inversion

SUN Wei -1,WANG Yan chun-1,LI Yu feng -2,WANG Da quan-3,XU Wei -1,HAN Lei -4   

  1. 1 School of Geophysics and Information Technology, China University of Geosciences, Beijing100083,China;
    2 Shengli Geophysical Research Institute, SINOPEC, Dongying, Shandong257022,China;
    3 Yunnan Geophysical Company,Southwest Petroleum Bureau Group,SINOPEC,Kunming,Yunnan650233, China;
    4 Research Institute of Petroleum Exploration and Development, SINOPEC, Beijing100083,China
  • Received:2012-06-15 Revised:2012-09-06 Online:2012-10-24 Published:2012-10-31

摘要:

提出一种基于地质统计反演的碳酸盐岩孔缝洞预测方法:首先,根据碳酸盐岩矿物成分,利用电阻率曲线和三孔隙度曲线计算单井裂缝孔隙度和次生孔隙度;然后,利用地质统计反演分别预测裂缝以及溶孔溶洞的平面分布特征;最后,通过综合分析得到碳酸岩储层的孔缝洞发育区带。将该方法应用于研究区碳酸盐岩储层的孔缝洞预测中,得到的孔缝洞分布特征与已知的白云岩分布特征较为吻合,验证了该方法的有效性。

关键词: 碳酸盐岩储层, 孔缝洞预测, 裂缝孔隙度, 次生孔隙度, 地质统计反演

Abstract:

Fractures and solution pores can greatly improve the physical properties of carbonate reservoirs, therefore, the key factor of reservoir prediction is how to predict the distribution of the fractures and solution pores with geophysical methods. This article proposed a method of fracture and solution pore prediction in carbonate reservoirs based on geostatistics inversion. Firstly, according to the mineral composition of carbonate rocks, the fracture porosity and secondary porosity were calculated with resistivity curves and three porosity curves. With the calculated result, geostatistics inversion was carried out to predict the distribution of the fracture and solution pore. According to the comprehensive analysis of inversion result, the developed area of fractures and solution pores was  obtained. This method was applied to the fracture and solution pore prediction in the study area. The predicted distribution characteristics of fractures and solution pores agreed well with the distribution of dolomite, and the veracity of this method was verified.

Key words: carbonate reservoir, fracture and solution pore prediction, fracture porosity, secondary porosity, geostatistics inversion