The disadvantages are mainly high equipment costs and plugging of the lines by sediment, salt encrustation, or algae.
缺点主要是设备费用高，管道易被泥沙、盐分结晶或藻类植物堵塞。
The pre-treatment system experienced plugging by ammonia salt 7 months after the unit came on stream and corrosion leakage 12 month after the start-up of the unit.
装置开工运转7个月后预处理系统首次出现铵盐堵塞现象，12个月后设备开始出现腐蚀泄漏情况。
This article demonstrated study on lab and initial test on site about chemical water plugging in high temperature and high salt reservoir.
论述了高温高盐油藏化学堵水技术的实验室研究和初期现场试验情况。
With over ten years of exploration and summarization in salt well exploitation, Shalongda salt Mine has gradually accumulated rules of eliminating and preventing pipe plugging by salt crystal.
沙隆达盐矿通过十多年盐井开采探索与总结，逐步形成了对盐井盐结晶解堵和防堵规律的认识。
The performance evaluation results showed that the plugging agent had heat resistance, salt tolerance, strong adsorption, and better selectivity.
对该堵水剂的性能评价表明，它具有耐温、耐盐、吸附性强、选择性好的特点。
Brief analysis on pipe plugging by salt crystallization is made and three measures are cited to the colleagues for reference.
本文对结晶堵管作一肤浅分析，并提出三种解决措施供采卤同行参考。
Rock core experiments indicate that the plugging agent has some outstanding characteristics, such as, high intensity, good salt resistance and heat steadiness and easiness of being plugging solved.
岩心实验表明，该堵剂具有强度高，抗盐性和热稳定性好，易解堵等显著特点。
A temporary plugging agent comprising graded granules of salt that form a physical or hydraulic barrier.
包含形成物理屏障或水力屏障的分级盐粒的暂堵剂。
The performance evaluation results showed that the plugging agent had heat resistance, salt tolerance, strong adsorption, and better selectivity.
对该堵水剂的性能评价表明，它具有耐温、耐盐、吸附性强、 选择性好的特点。
The performance evaluation results showed that the plugging agent had heat resistance, salt tolerance, strong adsorption, and better selectivity.
对该堵水剂的性能评价表明，它具有耐温、耐盐、吸附性强、 选择性好的特点。
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