| 随机反演在陆丰13-1油田储层预测中的应用 |
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| 引用本文： | 刘丹,徐伟.随机反演在陆丰13-1油田储层预测中的应用[J].物探化探计算技术,2012,34(3):331-335,240,241. |
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| 作者姓名： | 刘丹 徐伟 |
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| 作者单位： | 1. 中国地质大学地球物理与信息技术学院,北京,100083
2. 中国地质大学能源学院,北京,100083 |
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| 摘 要： | 这里以陆丰13-1油田为例,研究发现井上波阻抗曲线并不能有效区分砂岩储层和泥岩非储层,故对孔隙度数据体进行了反演.首先对井上孔隙度曲线进行直方图统计分析,变差函数分析及孔隙度和波阻抗的相关性分析,然后用高斯模拟加模拟退火的随机反演方法对研究区进行了孔隙度体的反演.经反演发现,较其它反演方法孔隙度体反演剖面分辨率有了很大提高,对薄砂体也能很好地识别,且与井上吻合较好,能很好地刻画出砂体的横向变化情况,平面上砂体的展布也符合该区的沉积相分布.
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| 关 键 词： | 随机反演 直方统计 变差函数 相关性分析 孔隙度 |
APPLICATION OF STOCHASTIC INVERSION IN THE RESERVOIR PREDICTION OF LUFENG 13-1 OIL FIELD |
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| LIU Dan,XU Wei.APPLICATION OF STOCHASTIC INVERSION IN THE RESERVOIR PREDICTION OF LUFENG 13-1 OIL FIELD[J].Computing Techniques For Geophysical and Geochemical Exploration,2012,34(3):331-335,240,241. |
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| Authors: | LIU Dan XU Wei |
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| Institution: | 1.Geophysics and Information Technology Institute,China University of Geosciences,Beijing 100083,China;2.Energy Institute,China University of Geosciences,Beijing 100083,China). |
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| Abstract: | The study shows that wave impedance curve can not effectively distinguish between sandstone reservoir and shale non-reservoir,so the porosity data volume are retrieved.Firstly,histogram statistical analysis,variogram analysis and the correlation analysis of porosity and wave impedance were carried on for porosity curve,and then inversion of porosity in this study area by using gaussian random inversion and simulated annealing was taken.Result of inversion showed that compared with other methods,inversion of porosity data volume has greatly improved resolution,could be a better identification to thin sand bodies,is good coincide with logging curve,and could characterize the lateral variation of sand body better,finally distribution of sand body is also consistent with the distribution of sedimentary facies in this area. |
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| Keywords: | stochastic inversion histogram statistics variogram correlation analysis porosity |
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