论文部分内容阅读
我队在北京地区开展地下热水勘探以来，由于热水赋存在深部灰岩中（千米左右），受到设备条件限制，钻孔口径小，出水量也受到影响，加之有的钻孔，地层裂隙不发育，又被钻进中岩粉所充填，以致影响地层的出水量。因此自1971年开始，采取酸化处理。处理后，多数井孔的单位涌水量，均有不同程度增加，个别井孔效果特别显著。现将具体做法小结如下：一、灌酸前的准备工作1．计算出灰岩井段的体积，另加10％的附加量，即为该井需灌酸数量。根据需灌酸数量，在现场将酸备足。盐酸以选用31％的浓度效果较好。
My team in Beijing since the start of underground hot water exploration, due to the presence of hot water in the deep limestone (km or so), subject to equipment constraints, small borehole diameter, the amount of water is also affected, together with some drilling, strata Fissure is not developed, but also by drilling into the rock powder filling, resulting in the formation of water. Therefore, since 1971, take acidification. After treatment, the influx of water in most of the well boreholes increased in varying degrees, and the effect of individual well bore was particularly significant. The specific practices are summarized as follows: First, before pouring acid preparation 1. Calculate the volume of limestone section, plus 10% of the additional amount, that is, the need to irrigate the number of wells. According to the number of need to irrigate the acid in the field will be sufficient. Hydrochloric acid to choose 31% of the concentration effect is better.