利用相控模型进行井间参数预测

桂峰; 黄智辉; 马正

利用相控模型进行井间参数预测

1.
中国地质大学地球物理系, 北京 100083
2.
中国地质大学资源学院, 武汉 430074

详细信息

作者简介:
桂峰, 女, 1972年生, 1999年毕业于中国地质大学(北京), 获博士学位, 主要从事石油勘探开发软件的研究开发

中图分类号: P618.130.2⁺.1;P618⁺.1
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出版历程
- 收稿日期: 2000-03-13
- 刊出日期: 2001-01-25

APPLICATION OF LITHOFACIES-CONTROLLED MODEL TO PREDICTION OF PHYSICAL PARAMETERS BETWEEN WELLS

1.
Department of Geophysics, China University of Geosciences, Beijing 100083, China
2.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 储层物性参数在空间的展布, 一直是储层非均质性研究的难点.利用分形和蒙特卡洛方法, 在精细的沉积微相及小层对比研究基础之上, 预测了井间的岩石相分布, 并根据取心井资料, 建立了各种岩石相的渗透率相控模型, 从而预测出井间渗透率的分布.该方法以地质特征为基础, 将地质资料与数学方法相结合, 充分体现了渗透率在井间既具有连续性, 同时变化又非常剧烈的特点, 为储层物性空间预测提供了新的思路.
- 渗透率 /
- 分形 /
- 蒙特卡洛预测 /
- 岩石相 /
- 相控模型
Abstract: The spatial distribution of the physical parameters in the reservoir has for a long time been a difficulty in the research into the reservoir heterogeneity. Both the fractal and Monto Carlo methods and the correlation between the fine sedimentary micro-facies and the sublayers are used to forecast the lithofacies distribution between wells. In addition, the core data are employed to establish the lithofacies-controlled models on the permeabilities for various kinds of lithofacies. Therefore, the permeabilities between wells can be forecasted. This method established on the geological features, combines the geological data with the mathematical methods, so as to fully reflect the continuity of the permeabilities between wells and the very violent changes in the permeabilities. In this sense, this method may serve as a new perspective for the spatial forecast of the physical parameters between wells.
- permeability /
- fractal /
- Monto Carlo prediction /
- lithofacies /
- lithofacies-controlled model

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图 1 井间渗透率预测的研究思路

Fig. 1. Flow chart of permeability prediction between wells

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图 2 大于分布函数AF (x) 示意

Fig. 2. Sketch map of function AF (x)

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图 3 3-3井和1-3井岩石相剖面

1.泥岩; 2.粉砂质泥岩; 3.泥质粉砂岩; 4.粉细砂岩

Fig. 3. Lithofacies profile between well 3-3 and well 1-3

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图 4 渗透率k的相控模型

Fig. 4. The model controlled by lithofacies for permeability prediction

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图 5 3-3井和1-3井之间的渗透率(k) 剖面

Fig. 5. Permeability (k) profile between well 3-3 and well 1-3

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图 6 1-3井和L4井之间的渗透率(k) 剖面

Fig. 6. Permeability (k) profile between well 1-3 and well L4

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表 1 不同岩石相的D和B值

Table 1. D and B values of different lithofacies

参考文献(5)

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