| 压裂液在煤层中的运移模拟研究 |
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| 引用本文： | 侯宏冰,陈立,郭晓静,马琳娜.压裂液在煤层中的运移模拟研究[J].现代地质,2015,29(2):331-336. |
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| 作者姓名： | 侯宏冰 陈立 郭晓静 马琳娜 |
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| 作者单位： | (中国地质科学院 水文地质环境地质研究所，河北 石家庄 050061) |
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| 基金项目： | 国家科技支撑计划项目(2012BAJ11B04);中国地质调查局地质调查项目(12120114011701) |
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| 摘 要： | 为给山西省临县三交区块的地下水环境保护提供科学依据，运用地下水数值模拟技术对压裂液在煤层中的运移进行了预测。在分析研究区地质结构的基础上，建立了水文地质概念模型，将山西组3#煤层概化为一个承压含水层，其上覆二叠系砂岩、泥岩作为隔水层，下伏的泥岩、砂岩互层作为隔水层，并确定了地下水系统的边界条件。运用地下水模型软件(Feflow)对研究区内的压裂液在煤层中的运移进行了模拟和预测,预测结果表明，压裂液在煤层中的的运移范围在煤层压裂影响范围以内，即压裂井周围300 m范围内。
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| 关 键 词： | 煤层气 压裂液 污染 三交区块 山西临县 |
Migration Simulation Research on Hydro-fracturing Fluid in Coal Bed |
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| HOU Hong-bing;CHEN Li;GUO Xiao-jing;MA Lin-na.Migration Simulation Research on Hydro-fracturing Fluid in Coal Bed[J].Geoscience——Journal of Graduate School,China University of Geosciences,2015,29(2):331-336. |
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| Authors: | HOU Hong-bing;CHEN Li;GUO Xiao-jing;MA Lin-na |
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| Institution: | (Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geology Sciences, Shijiazhuang, Hebei 050061,China) |
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| Abstract: | To provide scientific foundation for the protection of groundwater environment in Sanjiao block of Lin County in Shanxi Province, the groundwater numerical simulation was conducted to predict the migration of hydro-fracturing fluid in coal bed. A hydrogeological conceptual model was set up based on the analysis of geological structure. The 3# group coal bed within Shanxi Formation was conceptualized as a confined aquifer, overlaid by Permian sandstone and mudstone and underlaid by interbeds of mudstone and sandstone functioning as quitards. In addition, groundwater boundary conditions were confirmed. Migration of hydro-fracturing fluid in coal bed of the study area was modeled and predicted. Results indicate that the migration range of hydro-fracturing fluid in the coal bed is within coal hydro-fracturing impact limits, about 300 meters around fractured well. |
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| Keywords: | coal-bed gas hydro-fracturing fluid pollution Sanjiao block Lin County in Shanxi Province |
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