In a comprehensive geochemical study, the genetic relationship among 14 samples of gas condensates from the Persian Gulf was investigated for evaluating the respective source rocks in terms of age and sedimentary paleoenvironment. Chemometric analysis was used for categorization and determination of a certitude range to determine the genetic type of the condensate families in the studied basin. The samples were collected from Late Permian – Triassic reservoirs (Dalan and Kangan formations) located in 6 gasfields (gas condensate) hosting some of Iran's most important gas/gas condensate reserves. Obtained from gas chromatography-mass spectrometry (GC-MS), a total of 16 biomarker parameters (10 maturity-related parameters and 6 sedimentary environment-related parameters) were used to evaluate the samples in terms of thermal maturity (and hence their positions in the maturity chart), the sedimentary environment of the source rock, and lithology. Application of Hierarchical Clustering Analysis (HCA) and Principal Component Analysis (PCA) on the collected data led to the categorization of the samples into three main genetic groups, namely Groups I – III. Groups I and III were found to be located in the east and the west of the Persian Gulf, respectively, while Group II was developed in between the two other groups.

中文翻译：

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统计方法在伊朗南部波斯湾和沿海地区凝析油地球化学评价和遗传类型确定的生物标志物上的应用

在一项综合地球化学研究中，研究了来自波斯湾的 14 个凝析气样品之间的成因关系，以评估各自烃源岩的年龄和沉积古环境。化学计量分析用于分类和确定确定范围以确定所研究盆地中凝析油族的遗传类型。这些样品是从位于伊朗一些最重要的天然气/天然气凝析油储量的 6 个气田（凝析气）中的晚二叠世 - 三叠纪储层（Dalan 和 Kangan 地层）中采集的。从气相色谱-质谱 (GC-MS) 中获得，共有 16 个生物标志物参数（10 个成熟度相关参数和 6 个沉积环境相关参数）用于评估样品的热成熟度（以及它们在成熟度图中的位置）、源岩的沉积环境、和岩性。对收集的数据应用层次聚类分析 (HCA) 和主成分分析 (PCA) 导致将样本分为三个主要遗传组，即 I - III 组。第一组和第三组被发现分别位于波斯湾的东部和西部，而第二组则在另外两个组之间发展。对收集的数据应用层次聚类分析 (HCA) 和主成分分析 (PCA) 导致将样本分为三个主要遗传组，即 I - III 组。第一组和第三组被发现分别位于波斯湾的东部和西部，而第二组则在另外两个组之间发展。对收集的数据应用层次聚类分析 (HCA) 和主成分分析 (PCA) 导致将样本分为三个主要遗传组，即 I - III 组。第一组和第三组被发现分别位于波斯湾的东部和西部，而第二组则在另外两个组之间发展。