Spatial characterization of the location of potentially leaky wells penetrating a deep saline aquifer in a mature sedimentary basin
Spatial characterization of the location of potentially leaky wells penetrating a deep saline aquifer in a mature sedimentary basin
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DOI：
10.1007/s00254-004-1073-5
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发表时间：
2004-10-01
期刊：
影响因子：
--
通讯作者：
Celia, MA
中科院分区：
文献类型：
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作者：
Gasda, SE;Bachu, S;Celia, MA
这项工作的动机是考虑到为固碳目的注入深层地质层的二氧化碳的潜在泄漏途径。由于现有的威尔斯代表了一个潜在的重要泄漏途径，威尔斯，穿透深层含水层在阿尔伯塔盆地的空间分析和各种统计措施，以量化这些威尔斯的空间分布。数据表明，由于石油和天然气生产活动，威尔斯的空间聚集。这些数据还表明，可能受到注入CO2影响的威尔斯井的数量，如注入CO2羽流的扩散所定义的，从高井密度地区的几百口到低密度地区的大约20口不等。这些结果可能适用于其他成熟的大陆沉积盆地在北美和其他地方，在那里的详细信息，井的位置和状态可能无法获得。
This work was motivated by considerations of potential leakage pathways for CO2 injected into deep geological formations for the purpose of carbon sequestration. Because existing wells represent a potentially important leakage pathway, a spatial analysis of wells that penetrate a deep aquifer in the Alberta Basin was performed and various statistical measures to quantify the spatial distribution of these wells were presented. The data indicate spatial clustering of wells, due to oil and gas production activities. The data also indicate that the number of wells that could be impacted by CO2 injection, as defined by the spread of an injected CO2 plume, varies from several hundred in high well-density areas to about 20 in low-density areas. These results may be applied to other mature continental sedimentary basins in North America and elsewhere, where detailed information on well location and status may not be available.