la luna / rÍo negro (.)委内瑞拉马拉开波湖盆地urdaneta west油田含油气系统:一维盆地模拟与二次油运移

IF 1.8 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Journal of Petroleum Geology Pub Date : 2022-06-23 DOI:10.1111/jpg.12820

M. Escobar, J. G. Díaz, G. Márquez, C. Boentec, R. Tocco

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引用次数: 0

摘要

本文基于三口井(井X)的一维盆地建模，研究了委内瑞拉西北部马拉开波湖盆地西北部Urdaneta West油田北部的生烃时间。通过对上白垩统La Luna组烃源岩热埋藏史和Río Negro组20个油样的地球化学分析，确定了Y和Z. Kitchen区，并推断了二次运移方向。采用气相色谱-质谱法(GC - MS)分析油样中的脂肪族烃，采用能量色散X射线光谱法和电感耦合等离子体发射光谱法分别测定了钒镍和硫的含量。体积特征和分子特征表明，原油来源于海相碳酸盐岩烃源岩，烃源岩中含有ⅰ型亲油干酪根，与La Luna组形成的烃源岩相一致。

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THE LA LUNA/RÍO NEGRO(.) PETROLEUM SYSTEM AT THE URDANETA WEST FIELD, LAKE MARACAIBO BASIN, NW VENEZUELA: 1D BASIN MODELLING AND SECONDARY OIL MIGRATION

This paper investigates the timing of hydrocarbon generation in the northern part of the Urdaneta West field in the NW of the Lake Maracaibo Basin, NW Venezuela, based on 1D basin modelling at three wells referred to as wells X, Y and Z. Kitchen areas were identified and secondary migration directions were inferred based on analyses of the thermal and burial history of the Upper Cretaceous La Luna Formation source rock and the geochemistry of 20 oil samples from the Río Negro Formation reservoir. Aliphatic hydrocarbons in the oil samples were analysed by gas chromatography – mass spectrometry (GC‐MS) while the vanadium‐nickel and sulphur contents were determined by energy dispersive X‐ray spectrometry and inductively coupled plasma optical emission spectroscopy, respectively. Bulk and molecular characterizations indicated that the oils originated from a marine carbonate source rock containing oil‐prone Type II kerogen, consistent with generation by the La Luna Formation.

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来源期刊

Journal of Petroleum Geology 地学-地球科学综合

CiteScore

3.40

自引率

11.10%

发文量

审稿时长

6 months

期刊介绍： Journal of Petroleum Geology is a quarterly journal devoted to the geology of oil and natural gas. Editorial preference is given to original papers on oilfield regions of the world outside North America and on topics of general application in petroleum exploration and development operations, including geochemical and geophysical studies, basin modelling and reservoir evaluation.