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我区三年来机井建设工作总结中曾明确指出,我区井灌事业中存在的首要问题就是对质量重视不够。新疆现有配套机井共9010眼,其中约有1/4存在各种类型的质量问题。水井的质量问题涉及面甚广,而涌沙则是一个主要问题。大量事实说明,机井抽水涌沙,轻者造成水井淤塞、水量骤减;重则发生地面坍塌,井管折断,及至水井报废。多年来的生产实践证明,机井抽水涌砂现象,不仅大量发生在细颗粒地层中,而且亦普
In the past three years, the work area of well construction has concluded clearly that the primary problem in well irrigation in our district is that the quality is not taken seriously enough. A total of 9010 wells in Xinjiang supporting wells, of which about 1/4 there are various types of quality problems. The quality of the wells involves a wide range of issues, while the surge is a major problem. A large number of facts show that the pumping wells and pumped sand, light caused by silting wells, water plummeted; heavy collapse occurred on the ground, well tube broken, and to the well scrapped. Years of production practice has proved that the phenomenon of pumping well water gushing wells, not only occurs in large quantities in fine-grained formations, but also general