The Upper Arab reservoir in the central Persian Gulf was examined for depositional, diagenetic, sequence stratigraphic and petrophysical features. This succession is composed of eight sedimentary facies that deposited on a carbonate ramp. Three-third-order sequences prograded across the Late Jurassic Arab Platform. This interval was complicated by multiple diagenetic phases including eogenesis and mesogenesis that strongly influenced reservoir properties. Dolomitization, dissolution, cementation and compaction are major diagenetic processes which played an essential role in increasing or decreasing reservoir quality. Four hydraulic flow units (HFU) were determined by flow zone indicator approach for evaluation of the reservoir quality. In addition to depositional features, diagenetic alterations have changed general HFUs characterizations such as porosity, permeability and pore-throat size. Likewise, via Lucia classification, HFUs of the Arab reservoir were grouped based on the integration of geological and petrophysical attributes in detail. Among diagenetic processes, dolomitization and dissolution have positive effects while cementation and stylolitization have a negative effect on HFUs characteristics in the studied reservoir. Put another way, since diagenetic alterations lead to the intensification of heterogeneity in carbonate reservoir, prediction of the relationship between pore type and pore throat size is a problematic issue. Recognition of the hydraulic flow units considered as a practical tool for grouping reservoir rocks and characterizing heterogeneity using porosity and permeability relationship. Finally, specifying of the contribution of various diagenetic imprints in each hydraulic flow unit in a sequence stratigraphic framework results in a conceptual reservoir model that could predict reservoir quality variations across the field.

中文翻译：

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成岩作用对水力流动单元特性的影响：波斯湾侏罗系碳酸盐上阿拉伯地层的见解

检查了波斯湾中部的上阿拉伯水库的沉积，成岩作用，层序地层和岩石物理特征。该演替由沉积在碳酸盐斜坡上的八个沉积相组成。三分之三的序列在整个侏罗纪晚期的阿拉伯平台上进行。这一间隔因多个成岩作用阶段而复杂化，包括强烈影响储层特性的成岩作用和介晶作用。白云石化，溶解，胶结和压实是主要的成岩过程，对提高或降低储层质量起着至关重要的作用。通过流区指示器方法确定了四个液压流量单元（HFU），以评估储层质量。除了沉积特征之外，成岩作用改变了一般HFU的特征，如孔隙度，渗透率和孔喉尺寸。同样，通过卢西亚（Lucia）分类，根据地质和岩石物理属性的整合，对阿拉伯水库的HFU进行了详细分组。在成岩过程中，白云石化作用和溶蚀作用对研究储层的HFUs特征具有积极影响，而胶结作用和溶化作用则对HFUs特征具有不利影响。换句话说，由于成岩作用改变导致碳酸盐岩储层非均质性加剧，因此预测孔类型与孔喉尺寸之间的关系是一个有问题的问题。识别液压流单元是一种实用工具，可用于对储集层岩石进行分组并利用孔隙度和渗透率关系表征非均质性。