利用二维盆地和石油系统建模预测碳氢化合物储量:埃及苏伊士湾阿布泽尼玛和十月油田案例研究

Ahmed Tarshan
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摘要

这项工作旨在阐明二维盆地和石油系统建模(BPSM)软件在油气聚集评估中的潜在应用。为了证明可以推断出多少有关地下碳氢化合物的存在及其积聚机制的信息,二维盆地和石油系统建模软件被应用于作为案例研究的两个地震剖面。在整个建模阶段,对断层和地层进行了数字表示,以创建两个地震剖面的二维 BPSM。二维 BPSM 建模使用模型各层的年龄和岩性作为输入。混合技术用于模拟油气迁移路径。模拟结果表明,当深度减小时,成熟度也随之减小,有些部分的转化率高达 100%。对于 ABZ88-18 模型中的上白垩统源岩,玻璃光泽反射率(Ro%)处于成熟阶段,可提供 Ro% 值为 0.6% 至 1.3% 的石油。而在模型 370 中,Ro% 值从 0.55% 到 1.3% 不等。根据建模结果,发现了新的油气远景储集区。ABZ88-18 模型的估计总质量为 2.929 亿桶石油和 1149 万立方米天然气,而 370 模型的估计总质量为 1.7852 亿桶石油。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Prediction of hydrocarbon accumulations using 2D basin and petroleum system modeling: Case studies from Abu Zenima and October fields in the Gulf of Suez, Egypt
This work aims to elucidate the potential applications of 2D basin and petroleum system modeling (BPSM) software in the assessment of hydrocarbon accumulations. To demonstrate how much information can be inferred regarding the existence of hydrocarbons and their mechanisms of accumulation in the subsurface, 2D BPSM was applied to two seismic sections that were utilized as case studies. The faults and horizons were digitally represented throughout the modeling phase to create the 2D BPSM for both seismic sections. The 2D BPSM construction used the age and lithology of each layer of the model as inputs. The hybrid technique was used to simulate hydrocarbon migration paths. The simulation findings showed that when the depth decreases, the degree of maturity declines, as some parts are characterized by transformation ratios of up to 100%. For the Upper Cretaceous source rock in model ABZ88-18, the levels of vitrinite reflectance (Ro%) are in the maturity phase and provide oil with Ro% values ranging from 0.6% to 1.3%. Whereas, in model 370, the Ro% values range from 0.55% to 1.3%. Based on the results of the modeling, new prospective hydrocarbon accumulations were found. Model ABZ88-18's estimated total mass is 292.9 million bbl oil and 11.49 million m3 gas, compared to model 370's estimated total mass of 178.52 million bbl oil.
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