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由北京地质局水文地质一大队试验成功的二氧化碳压酸洗井法,是一种值得推广的新型洗井工艺。具有成本低、设备少、操作易、效果好等优点,解决了空气压缩机和活塞洗井无法解决的困难,深受欢迎。 基本原理 利用高压的液态二氧化碳,将灌入井孔中的盐酸压入岩石的管道、裂隙或孔隙之中,加速盐酸对岩石的溶蚀作用;同时,因液态二氧化碳送入井内处减压吸热过程之中,由液态转化为气态,其体积剧烈膨胀,产生强压,从而将井中岩屑和岩粉一并由井
The successful test of carbon dioxide pressure pickling by the first group of Beijing Bureau of Geology hydrogeology is a new type of well washing technology worthy of promotion. Has the advantages of low cost, less equipment, easy operation, good effect and so on, solves the air compressors and piston washing wells can not solve the difficult, popular. Fundamentals The use of high-pressure liquid carbon dioxide, the hole into the hole into the rock hydrochloric acid into the cracks, or cracks in the pores to accelerate the dissolution of hydrochloric acid on the rock; the same time, due to liquid carbon dioxide into the well at the end of decompression and endothermic process , From the liquid into the gas, the volume of its dramatic expansion, resulting in strong pressure, so that the well in the rock and rock together by well