Lower triassic series reservoir characterization based on deterministic seismic inversion—Case study of an Algerian petroleum field

IF 2.2 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Journal of Applied Geophysics Pub Date : 2025-04-18 DOI:10.1016/j.jappgeo.2025.105739

Said Eladj , Mohamed Zinelabidine Doghmane , Mouna Keltoum Benabid , Kong Fah Tee , Sofiane Djezzar , Bassem S. Nabawy

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引用次数: 0

Abstract

The primary goal of this research is to characterize potential reservoirs in an Algerian petroleum field using deterministic seismic inversion of pre-stack data. Iterative methods were used to build the model, and the constructed volumes were correlated with the six wells drilled in the field for each iteration. Therefore, the final model has a high correlation rate, which exceeded 75 %. Furthermore, using the logging data cross plot, we were able to establish mathematical relationships between the seismic volumes of acoustic impedance, Vp/Vs, and density, as well as the reservoir's three dominant facies (clay, sandstone, and clayey sandstone). Besides, the petrophysical volumes obtained by using these relationships provided the horizontal distribution for the different reservoirs, with a focus on the potential ones. Thus, it is highly recommended to consider this model for determining the new exploration wells' positions in order to optimize the exploration strategy with minimal uncertainties and, consequently, reduce the exploration costs.

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基于确定性地震反演的下三叠统储层表征——以阿尔及利亚某油田为例

本研究的主要目标是利用叠前数据的确定性地震反演来描述阿尔及利亚某油田的潜在储层。采用迭代方法建立模型，每次迭代建立的体积与现场钻的6口井相关联。因此，最终模型具有较高的相关率，超过75%。此外，利用测井数据交叉图，我们能够建立声波阻抗、Vp/Vs和密度的地震体积以及储层的三种优势相（粘土、砂岩和粘土砂岩）之间的数学关系。此外，利用这些关系得到的岩石物性体积提供了不同储层的水平分布，重点是潜在储层。因此，强烈建议考虑该模型来确定新探井的位置，以便在最小的不确定性下优化勘探策略，从而降低勘探成本。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Geophysics 地学-地球科学综合

CiteScore

3.60

自引率

10.00%

发文量

274

审稿时长

4 months

期刊介绍： The Journal of Applied Geophysics with its key objective of responding to pertinent and timely needs, places particular emphasis on methodological developments and innovative applications of geophysical techniques for addressing environmental, engineering, and hydrological problems. Related topical research in exploration geophysics and in soil and rock physics is also covered by the Journal of Applied Geophysics.