华北油田高精度薄储层预测技术应用研究

发布时间：2018-05-23 20:50

本文选题：华北油田 + 地质统计学反演　；参考：《东北石油大学》2017年硕士论文

【摘要】：随着近年来华北油田勘探开发程度的加深,一些以三角洲前缘为沉积背景的砂泥岩薄互层正逐渐成为储量接替的主要储层。这些储层多是非均质性强、分布不规律的岩性储层,致使确定储层边界、搞清储层在横向和纵向上的变化规律及分布特点变得非常困难,因此高精度储层预测技术变得尤为重要本文详细分析了制约高精度储层预测技术的关键因素,并且从问题入手,应用地震、地质等资料并结合相关理论,针对常规的确定性反演分辨力低,难以识别薄砂体的问题,充分开发有利储层的高精度识别的反演方法。本文研究了目前常用的地质统计学反演方法、提频拓频方法、约束稀疏脉冲反演方法等高精度储层预测方法,并在饶阳凹陷、霸县凹陷等多个地区进行了详细的应用。通过效果的对比分析,有针对性的总结了适用于不同储层类型的高精度储层反演流程。本文通过在华北油田多个地区的储层预测应用研究,提出了以岩石地球物理分析为核心的,适用于砂泥岩薄互层等多种储层类型的高精度预测方法,提高了预测结果的分辨率,并且能够更加精确地描述储层细微的变化。
[Abstract]:With the deepening of exploration and development of Huabei Oilfield in recent years, some sand and mudstone thin interbeds with delta front as the sedimentary background are gradually becoming the main reservoir of reserves replacement. Most of these reservoirs are lithologic reservoirs with strong heterogeneity and irregular distribution, which makes it very difficult to determine reservoir boundaries and to find out the variation laws and distribution characteristics of reservoirs in horizontal and vertical directions. Therefore, the high-precision reservoir prediction technology becomes particularly important. This paper analyzes the key factors restricting the high-precision reservoir prediction technology in detail, and starts with the problems, applies seismic, geological and other data and combines the relevant theories. In view of the low resolution of conventional deterministic inversion, it is difficult to identify thin sand bodies, and fully develop the inversion method with high accuracy for favorable reservoir identification. In this paper, the methods of high-precision reservoir prediction, such as geostatistical inversion method, frequency-increasing method, constrained sparse pulse inversion method and so on, are studied and applied in many areas such as Raoyang Sag, Baxian Sag and so on. Through the comparison and analysis of the effect, the flow of high precision reservoir inversion suitable for different reservoir types is summarized. Based on the application of reservoir prediction in many areas of North China Oilfield, this paper presents a high precision prediction method based on rock geophysical analysis, which is suitable for various reservoir types, such as sand and mudstone thin interbeds, and improves the resolution of the prediction results. And can more accurately describe the subtle changes in the reservoir.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13

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