A. Silveira, M. Vargas, V. Engelke, P. Paim, M. Morris, J. E. Faccion
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引用次数: 0
Abstract
Summary A recurrent challenge of geological modeling is bridging the gap between data with different resolution, such as the outcrop with the exploration resolution. By only integrating outcrop data from Arroyo La Jardineira, Neuquen Basin (AR), we integrated the object-based stochastic simulation for four depositional sequences that register a turbidite succession deposited in a deep-marine setting. This study aims (i) to determine a concise geological model derived from a plethora of simulations; (ii) to validate the uses of object-modeling as a constraint to facies distribution, and (iii) to evaluate the uncertainties when the data is scarce. The 3D numerical model allows the quantification of geological parameters, by testing contrasting geological scenarios. A quantitative sedimentological model was build integrating and using data derived from outcrops. The methodology utilized in this work enhanced the outcropping analysis, being a predictive tool to estimate faciological heterogeneities in subsurface explorational models.
地质建模的一个反复出现的挑战是弥合不同分辨率数据之间的差距,例如露头与勘探分辨率。通过仅整合来自Neuquen盆地Arroyo La Jardineira (AR)的露头数据,我们将基于对象的随机模拟集成到四个沉积序列中,这些沉积序列记录了沉积在深海环境中的浊积岩演替。本研究的目的是:(i)从大量的模拟中确定一个简明的地质模型;(ii)验证对象建模作为相分布约束的使用,以及(iii)在数据稀缺时评估不确定性。三维数值模型允许地质参数量化,通过测试对比地质情景。结合露头资料,建立了定量沉积学模型。这项工作中使用的方法增强了露头分析,成为估计地下勘探模型中岩性非均质性的预测工具。