地球物理模拟及其对埃及南部El Gallaba平原Al Baraka储层表征的贡献

IF 2.1 4区 工程技术 Q3 ENERGY & FUELS
Mohamed Osman Ebraheem, H. Ibrahim, H. Ewida, A. H. Senosy
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引用次数: 0

摘要

近年来,在埃及南部的Komombo等裂谷盆地中,早白垩世地层被认为具有重要的含油气潜力。因此,本研究的重点是对Komombo次盆地Al Baraka含油气储层的测井和地震反射资料进行批判性分析和解释。这些数据的解释用于构建该地区的第一个三维地球物理模型,随后根据其是否含油气的潜力进行解释。推导了三维岩石物理模型,以说明储层内岩石物理性质的空间分布和扩展(横向和纵向)。此外,还准备了三维地震模型,以全面深入地了解不同深度的生产油气藏带是如何被构造控制的。因此,这些模型对于解释储层特征,为精确预测储层动态提供支持的储层地质模型具有重要意义。本研究旨在从含油气系统的角度进行油气潜力区划分和确定。逐步分析的结果表明,六山组中只有C和D两个层位具有砂体厚度大、含水饱和度低、孔隙度高、渗透率高的特点,因此被认为是产量最高的层位。这些带位于研究区的东北部和中部,代表了次盆地的沉积中心。这一证据支持并证实了六山组内某些区域存在油气聚集。因此,这项工作可以给予和鼓励具有足够知识的专家了解Komombo裂谷盆地和埃及中南部其他盆地的发育。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Geophysical Modeling and Its Contribution on the Reservoir Characterization of Al Baraka in El Gallaba Plain, South Egypt
The early Cretaceous formations in recent years are considered significant potential hydrocarbon-bearing rocks in many rift basins such as Komombo, south Egypt. Therefore, this study is focused on the critical analysis and interpretation of well logging together with seismic reflection data on the Al Baraka petroliferous reservoir in the Komombo subbasin. The interpretation of these data was used to construct the first 3D geophysical models in this area which were subsequently interpreted in terms of their potential to be hydrocarbon-bearing or not. The 3D petrophysical models were deduced to illustrate the spatial distribution and propagation of the petrophysical properties (laterally and vertically) within the reservoir. Additionally, 3D seismic models were prepared to get a comprehensive, in-depth picture of how the productive hydrocarbon reservoir zones are structurally controlled in different depths. So, these models are crucial for explaining reservoir characteristics and providing supported geological reservoir models for precise reservoir performance prediction. This study aims to differentiate and determine hydrocarbon potential zones in terms of the petroleum system. The results of these progressive analyses showed that only two zones (C and D) in the Six Hills Formation are considered the most productive zones because they have a large thickness of sand bodies, low-water saturation values, high porosity, and high permeability. These zones are located in the northeastern and central parts of the studied area, which represent the depocenter of the subbasin. This evidence supported and confirmed the presence of petroleum accumulations in certain zones within the Six Hills Formation. Therefore, this work can give and encourage experts with adequate knowledge to understand the development of the rift basins in Komombo and other basins in middle and south Egypt.
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来源期刊
CiteScore
5.30
自引率
0.00%
发文量
68
审稿时长
12 months
期刊介绍: Covers the application of a wide range of topics, including reservoir characterization, geology and geophysics, core analysis, well logging, well testing, reservoir management, enhanced oil recovery, fluid mechanics, performance prediction, reservoir simulation, digital energy, uncertainty/risk assessment, information management, resource and reserve evaluation, portfolio/asset management, project valuation, and petroleum economics.
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