| 水文地质钻探冲洗液的选用 |
| 投稿时间：2016-06-28 修订日期：2016-07-07 点此下载全文 |
| 引用本文：郑继天,李小杰,关晓琳.水文地质钻探冲洗液的选用[J].钻探工程,2016,43(10):242-244.ZHENG Ji-tian,LI Xiao-jie,GUAN Xiao-lin. Selection of Drilling Fluid for Hydro-geological Drilling[J]. Drilling Engineering, 2016,43(10):242-244. |
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| 基金项目:国土资源部公益性行业科研专项“浅层地下水多层多参数监测技术研发与示范项目”之课题2“小口径机动惯性泵采样设备研发”（编号：201411083-2） |
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| 中文摘要:水文地质钻探工作中，钻探冲洗液对含水层的淤堵和对出水量的影响一直是值得关注的问题。优质冲洗液的泥皮薄而韧，有利于洗井，洗井时间短。优质冲洗液在钻进过程中泥皮形成快，而不侵入含水层的空隙通道，固相扩散半径小，提高出水量，有利于对水文地质参数的评价。在条件允许的情况下，水文地质钻探冲洗液选择按照先后顺序可排列如下：低密度冲洗介质、无固相冲洗液、粗分散冲洗液、细分散冲洗液、清水。本文简要介绍了水文钻探冲洗液的要求、选型和性能指标控制，为使用和管理好水文地质钻探冲洗液提供一些参考。 |
| 中文关键词:水文地质钻探 冲洗液 含水层 出水量 |
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| Selection of Drilling Fluid for Hydro-geological Drilling |
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| Abstract:In hydro-geological drilling, the influence of drilling fluid on aquifer clogging and water yield of the aquifer has been the problem that we care about. The thin and tough mud cakes, which are formed by the high quality drilling fluid, are good for well washing with high performance. In the drilling process, high quality drilling fluid can quickly form mud cake on the borehole wall. This in turn prevents free water from invading into the pore channels of the aquifer. So that solid phase diffusion radius is small and water yield is high. It is good for the evaluation of hydro-geological parameters. When conditions permit, the hydro-geological drilling fluids can be ranked according to following order of priority: low density washing medium, solid free drilling fluid, coarse dispersion drilling fluid, fine dispersion drilling fluid and water. This paper briefly introduces the requirements, type selection and performance index control of the drilling fluid used for hydro-geological drilling, and we hope to provide some reference for the use and management of the drilling fluid in the hydro-geological drilling. |
| keywords:hydro-geological drilling drilling fluid aquifer water yield |
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