Amer Mohammed, Mabrouk Walid M, Eid Amr M, Metwally Ahmed
Geophysics Department, Faculty of Science, Cairo University, Giza, 12613, Egypt.
Sci Rep. 2025 May 26;15(1):18334. doi: 10.1038/s41598-025-03032-5.
The Amal Oil Field in the Southern Gulf of Suez presents significant potential for Carbon Capture and Storage (CCS). This study integrates 3D geological modeling, seismic interpretation, and petrophysical analysis to assess the field's suitability for CO sequestration. The structural analysis identifies a primary horst block bounded by major normal faults, providing an effective structural trap for CO storage. Stratigraphic studies confirm the presence of robust sealing formations, including the Kareem shale and the evaporite-dominated Zeit and South Gharib Formations, ensuring long-term containment. Petrophysical evaluation of the Upper Rudies reservoir reveals favorable conditions for CO injection, characterized by low shale volume, moderately high effective porosity, low water saturation, and adequate permeability. Reservoir property modeling, conducted using sequential Gaussian simulation (SGS), a statistical method used to distribute reservoir properties, such as porosity and permeability, throughout the reservoir by generating multiple possible scenarios based on a Gaussian distribution model, demonstrates significant lateral and vertical heterogeneity, with the central horst block exhibiting the highest storage potential. Permeability distribution varies from 0.1 to 100 mD, with an average of 10 mD in key reservoir zones, further supporting its suitability for CO injection. CO storage capacity estimation, incorporating grid pore volumes, CO density, formation volume factor, and storage efficiency coefficient, suggests a storage potential ranging from 3.6 to 48.5 million tons. Spatial analysis highlights the central and northwestern regions as the most promising areas for injection due to higher porosity and net pay thickness. The Gulf of Suez boasts a unique geological setting, providing excellent structural traps for hydrocarbon and CO storage. Its well-developed infrastructure, including extensive pipelines, processing facilities, and existing wells, supports efficient CO transportation and injection, enhancing the feasibility of large-scale CO storage with minimal additional investment. The region's strategic location also enhances its role in global trade and energy logistics. This study provides a comprehensive workflow for evaluating depleted hydrocarbon reservoirs for CCS applications, offering valuable insights for future CO sequestration projects in the Gulf of Suez, a region underexplored in CCS literature. The findings contribute to Egypt's national carbon reduction initiatives and support global climate mitigation strategies.
苏伊士湾南部的阿迈勒油田在碳捕获与封存（CCS）方面具有巨大潜力。本研究综合了三维地质建模、地震解释和岩石物理分析，以评估该油田对二氧化碳封存的适用性。构造分析确定了一个由主要正断层界定的主要地垒块，为二氧化碳储存提供了有效的构造圈闭。地层研究证实存在坚固的封盖层，包括卡里姆页岩以及以蒸发岩为主的宰特和南加里卜地层，确保了长期封存。对上鲁迪斯储层的岩石物理评价揭示了有利于二氧化碳注入的条件，其特征为低页岩体积、中等偏高的有效孔隙度、低含水饱和度和足够的渗透率。使用序贯高斯模拟（SGS）进行的储层属性建模（SGS是一种统计方法，用于通过基于高斯分布模型生成多种可能情况，在整个储层中分布储层属性，如孔隙度和渗透率）表明存在显著的横向和纵向非均质性，中央地垒块具有最高的储存潜力。渗透率分布范围为0.1至100毫达西，关键储层区域的平均渗透率为10毫达西，进一步证明了其适合二氧化碳注入。结合网格孔隙体积、二氧化碳密度、地层体积系数和储存效率系数进行的二氧化碳储存容量估计表明，储存潜力在360万吨至4850万吨之间。空间分析突出了中部和西北部地区是最有前景的注入区域，因为这些区域具有较高的孔隙度和净产层厚度。苏伊士湾拥有独特的地质环境，为碳氢化合物和二氧化碳储存提供了优良的构造圈闭。其完善的基础设施，包括广泛的管道、处理设施和现有油井，支持高效的二氧化碳运输和注入，以最小的额外投资提高了大规模二氧化碳储存的可行性。该地区的战略位置也增强了其在全球贸易和能源物流中的作用。本研究提供了一个用于评估枯竭碳氢化合物储层用于CCS应用的综合工作流程，为苏伊士湾未来的二氧化碳封存项目提供了有价值的见解，苏伊士湾是CCS文献中研究较少的地区。研究结果有助于埃及的国家碳减排倡议，并支持全球气候缓解战略。
