Geologic parameters, geophysical logging, injection testing, and operational metrics from wastewater injection wells were integrated to develop a preliminary design of a carbon storage facility in the Appalachian Basin. A scattered group of 10–20 commercial wastewater injection wells dispose off produced water from oil and gas wells in the region, utilizing a sequence of stacked deep saline formations for injection zones. These wastewater injection wells provide practical benchmarks for understanding the feasibility of carbon dioxide (CO₂) storage. Geologic models were developed based on characterization data from the wastewater injection wells. Reservoir simulations were calibrated according to injection testing and operational data from the wastewater injection wells. Long‐term operational data on injection flow rates and pressures measured in the wastewater injection wells were especially useful to evaluate the performance of carbon storage applications. The simulations were used to estimate injection pressures, radius of CO₂ saturation, and pressure response for industrial scale CO₂ storage applications. Results were also used to provide a design basis in terms of number of injection wells, well spacing, area of review, injection system components, monitoring plan, and CO₂ pipeline distribution system. The analysis demonstrates that there is sufficient injectivity in the deep saline formations in the west‐central Appalachian Basin to store commercial volumes of anthropogenic CO₂. The geologic system appears suitable for supporting CO₂ injection rates of 0.5–1.0 million metric tons per year at injection pressures below formation fracture pressure in a single well. The long‐term operational data of wastewater injection wells within the study area suggested a lower permeability‐thickness values than indicated by initial reservoir tests. A workflow for developing realistic permeability values for input into reservoir simulations is presented. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.

中文翻译：

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利用废水注入井的运行信息来评估阿巴拉契亚盆地碳储存应用中的二氧化碳注入性能

结合了废水注入井的地质参数，地球物理测井，注入测试和操作指标，以开发阿巴拉契亚盆地碳储藏设施的初步设计。分散的10至20个商业废水注入井组，利用该区域的注入井的一系列堆积的深层盐水，处理掉该地区油气井的产出水。这些废水注入井为了解二氧化碳（CO ₂）存储。基于废水注入井的特征数据开发了地质模型。根据注入测试和废水注入井的运行数据对储层模拟进行了校准。有关在废水注入井中测量的注入流量和压力的长期运行数据对于评估碳存储应用的性能特别有用。该模拟用于估计工业规模CO ₂储存应用的注入压力，CO ₂饱和半径和压力响应。结果还用于提供有关注入井数量，井间距，检查面积，注入系统组件，监测计划和CO ₂的设计基础。管道分配系统。分析表明，中阿巴拉契亚盆地中部深部盐层具有足够的注入性，可以储存商业量的人为CO ₂。该地质系统似乎适合于在单井中以低于地层破裂压力的注入压力支持每年0.5–1.0百万公吨的CO ₂注入速度。研究区内废水注入井的长期运行数据表明，其渗透率-厚度值低于初始储层测试所显示的值。提出了开发实际渗透率值以输入储层模拟的工作流程。©2020年化学工业协会和John Wiley＆Sons，Ltd.