| 摘要: |
| 应用整合地震、各种微相定量参数与地质统计学相结合的三维地质建模方法,对大港油田西58-8稀井网区河道砂体分布进行预测。结果表明:处于同一沉积体系的紧邻的老油田密井网区的沉积微相定量表征参数可以作为稀井网区砂体预测的约束参数;地震资料预测的复合河道级别砂体分布范围可作为单河道砂体预测的最大外边界;在最大外边界及微相定量表征参数的约束下,采取示性点过程算法模拟单砂层级别沉积微相三维分布,以此为基础的“相控”模拟可以提高单河道砂体三维分布预测精度。 |
| 关键词: 大港油田 西588井区 明化镇组 河道砂体 沉积微相 三维地质模型 |
| DOI：10.3969/j.issn.1673-5005.2011.01.002 |
| 分类号::TE 122.2 |
| 文献标识码:A |
| 基金项目:国家科技重大专项课题(2008ZX05010) |
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| Channel sandbodies prediction in west 588 sparse borefield of Dagang Oilfield |
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ZHANG Guoyi, HOU Jiagen, LIU Yuming, ZHAO Bin
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(College of Geosciences in China University of Petroleum, Beijing 102249, China)
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| Abstract: |
| Taking west 588 borefield in Dagang Oilfield as an example, the channel sandbodies distribution in sparse well network were predicted applying the methods of threedimensional geological model that is integrated seismic data, microfacies quantitative characterization of parameters with geostatistics. The results show that the parameters of microfacies quantitative characterization towards the dense well pattern area of nearby old oilfield in the same sedimentary system can be used as the boundary parameters of sandbodies prediction in sparse well network. The range of complex channel sandbodies distribution predicted by seismic data can be seen as the maximum outer boundary of single channel sandbodies distribution. Under the constraints of maximum outer boundary and parameters of microfacies quantitative characterization, the threedimensional distribution of single sandlevel microfacies was simulated by means of point process arithmetic. The prediction accuracy of single channel sandbodies in threedimensional distribution could be improved by facies control simulation. |
| Key words: Dagang Oilfield west 588 borefield Minghuazhen formation channel sandbody sedimentary microfacies threedimensional geological model |
