利用碳氢化合物地球化学和 PVT 分析评估密封完整性和动态断层特征：中东实例

IF 1.9 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Petroleum Geoscience Pub Date : 2024-01-18 DOI:10.1144/petgeo2023-068

Khaled R. Arouri

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引用次数: 0

摘要

在勘探和开发项目中，了解石油和天然气储集层的成因和关系至关重要。这不仅有助于更好地识别和划分石油系统，还有助于评估石油系统中最关键的因素之一--密封性。整合储层流体的地球化学和压力-体积-温度（PVT）数据为评估断层和顶封完整性提供了工具。本文讨论了中东不同古生代和中生代盆地中处于不同划分、开发和管理水平的油田实例，以说明流体地球化学在帮助评估顶部、侧部和断层密封完整性方面的作用，以及在深入了解储层异质性对碳氢流体流动的密封和缓冲作用方面的作用。讨论的实例包括：(1) 利用 PVT 流体成分数据检测岩石物理封隔；(2) 部分封隔的地球化学检测；(3) 紧靠区域不整合地层下方的固体储层沥青形成顶部封隔；(4) 可能的走向滑动断层封隔的地球化学识别；(5) 在 PVT 数据有限或不确定的评估阶段，对油田进行断层控制储层分隔的地球化学检测。专题集：本文是 2022 年断层和顶封的一部分，可从以下网址获取： https://www.lyellcollection.org/topic/collections/fault-and-top-seals-2022

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Assessment of Seal Integrity and Dynamic Fault Character Using Hydrocarbon Geochemistry and PVT Analysis: Examples from the Middle East

Understanding the genesis and relationships among oil and gas accumulations is of prime importance in exploration and development programs. This will not only help better identify and delineate petroleum systems, but also aid in evaluating seals – one of the most critical elements in petroleum systems. Integrating geochemistry and pressure-volume-temperature (PVT) data of reservoir fluids offer tools for the assessment of fault and top seal integrity. Examples from fields at different levels of delineation, development and management from different Paleozoic and Mesozoic basins in the Middle East are discussed to demonstrate the role of fluid geochemistry in aiding the evaluation of top, lateral and fault seal integrity, and in providing insights into the sealing and buffering effects of reservoir heterogeneity on hydrocarbon fluid flow. Examples discussed include (1) detection of petrophysical sealing using PVT fluid composition data, (2) geochemical detection of partial sealing, (3) the development of top seal by solid reservoir bitumen immediately below a regional unconformity, (4) geochemical recognition of possible strike-slip fault seal, and (5) geochemical detection of fault-controlled reservoir compartmentalisation in a field at an appraisal stage where PVT data are limited or inconclusive. Thematic collection: This article is part of the Fault and top seals 2022 collection available at: https://www.lyellcollection.org/topic/collections/fault-and-top-seals-2022

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来源期刊

Petroleum Geoscience 地学-地球科学综合

CiteScore

4.80

自引率

11.80%

发文量

审稿时长

>12 weeks

期刊介绍： Petroleum Geoscience is the international journal of geoenergy and applied earth science, and is co-owned by the Geological Society of London and the European Association of Geoscientists and Engineers (EAGE). Petroleum Geoscience transcends disciplinary boundaries and publishes a balanced mix of articles covering exploration, exploitation, appraisal, development and enhancement of sub-surface hydrocarbon resources and carbon repositories. The integration of disciplines in an applied context, whether for fluid production, carbon storage or related geoenergy applications, is a particular strength of the journal. Articles on enhancing exploration efficiency, lowering technological and environmental risk, and improving hydrocarbon recovery communicate the latest developments in sub-surface geoscience to a wide readership. Petroleum Geoscience provides a multidisciplinary forum for those engaged in the science and technology of the rock-related sub-surface disciplines. The journal reaches some 8000 individual subscribers, and a further 1100 institutional subscriptions provide global access to readers including geologists, geophysicists, petroleum and reservoir engineers, petrophysicists and geochemists in both academia and industry. The journal aims to share knowledge of reservoir geoscience and to reflect the international nature of its development.