Solway和Carlisle盆地远三叠纪Budleighensis河系岩石学和成岩作用研究

IF 1.9 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY
J. R. Marsh, S. J. Jones, N. S. Meadows, J. G. Gluyas
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引用次数: 0

摘要

由于未能在Solway盆地地区找到油气远景,导致缺乏对当地Sherwood砂岩组岩石学、储层质量和沉积历史的研究,而与EISB南部类似的储层相比,这些储层将被用于碳储存。详细的岩石学研究旨在了解索尔威湾是否具有类似的用途。二叠系三叠纪Sherwood砂岩群被认为沉积在早三叠世由广泛的budleighensis连接的沉积中心。河流系统。在这里,索尔韦盆地和卡莱尔盆地被认为是这一内海体系的终点,下三叠统安南砂岩组被认为是河流分流带的远端区域,上覆的柯克林砂岩组被认为是向盆地带过渡的标志,沉积了风成砂岩和当地相关的干盐湖相。流体包裹体、稳定同位素埋藏史模拟和现场观测用于评估不同成岩胶结物的相对时间和重要性。早期成岩胶结物主要为粒边赤铁矿胶结物和块状方解石胶结物,尤其是安南砂岩组。后期的埋藏成岩作用进一步看到方解石胶结物、石英过度生长,以及局限于柯克林顿砂岩组的铁质白云岩。河流安南相与风成柯柯林相组合的孔隙度和渗透率存在显著差异。尽管颗粒尺寸更细,但储层具有优异的孔隙度和渗透率,并且没有碳氢化合物充注或遗留的碳氢化合物提取,这表明Solway盆地可能是一个安全的二氧化碳储存地点。本文是能源地球科学系列的一部分,可在https://www.lyellcollection.org/cc/energy-geoscience-seriesSupplementary上找到材料:本研究中收集和利用的主要和次要数据的概述,以及原始数据值,可在https://doi.org/10.6084/m9.figshare.c.5906677上找到
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Petrographic and diagenetic investigation of the distal Triassic 'Budleighensis fluvial system in the Solway and Carlisle Basins for potential CO2 storage

Failure to find hydrocarbon prospects in the Solway Basin region has resulted in a lack of research into the local Sherwood Sandstone Group petrography, reservoir quality and depositional history compared to the analogous southern reservoirs in the EISB which will be utilized for carbon storage. A detailed petrographic study is presented which aims to understand if the Solway Firth could have similar utility. The Permo–Triassic Sherwood Sandstone Group is believed to be deposited in depocentres connected during the Early Triassic by the extensive ‘Budleighensis’ fluvial system. Here, the Solway and Carlisle basins are proposed as terminal sites for this endorheic system, with the Lower Triassic Annan Sandstone Formation ascribed to the distal region of a fluvial distributary zone and the overlying Kirklinton Sandstone Formation thought to mark a transition to a basinal zone, depositing aeolian sandstones and locally associated playa lake facies. Fluid inclusion, stable isotope burial history modelling and field observations have been used to assess the relative timing and importance of different diagenetic cements. Early diagenetic cements include grain-rimming haematite and patchy calcite cement, especially in the Annan Sandstone Formation. Later burial diagenesis sees further calcite cement, quartz overgrowths and, restricted to the Kirklinton Sandstone Formation, ferroan dolomite. Porosity and permeability show significant differences between fluvial Annan and aeolian Kirklinton facies associations. Despite the finer grain size, a reservoir with excellent porosity and permeability as well as no hydrocarbon charging or legacy hydrocarbon extraction is persevered, suggesting the Solway Basin could be a secure CO2 storage site.

This article is part of the Energy Geoscience Series available at https://www.lyellcollection.org/cc/energy-geoscience-series

Supplementary material: An overview of the primary and secondary data collected and utilised in this study, as well as raw data values are available at https://doi.org/10.6084/m9.figshare.c.5906677

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来源期刊
Petroleum Geoscience
Petroleum Geoscience 地学-地球科学综合
CiteScore
4.80
自引率
11.80%
发文量
28
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.
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