三相泡沫密封性能的实验研究

• 作 者: 林柏泉 周世宁 张仁贵
• 机 构: 中国矿业大学采矿系,中国矿业大学采矿系,中国矿业大学采矿系
• 出 处: 中国矿业大学学报
• 发表日期: 1992年03期
• 关键词: 密封性能 封孔 煤层瓦斯压力 压力测定 松软岩层 泡沫液 泡沫流体 煤巷 表面物理化学 稳泡剂

本文以表面物理化学为基础,探讨了泡沫流体的稳定性及其密封性能,得出了气液两相泡沫流体可作为封堵裂隙的介质,并且只要加入适量的固相填充剂,其密封性能可显著提高的结论,从而为煤层瓦斯压力测定的封孔技术,尤其是煤巷和松软岩层的封孔提供了一种较为理想的材料。研究工作表明,三相泡沫封孔技术是一项具有广泛实用前景的新技术。

In this paper, based on the surface physics and chemistry, the stability and the sealing performance of the foam fluid are discussed. It is concluded that the gas-liquid two-phase foam fluid can be used as the medium for plugging the fracture, and as long as the proper amount of solid filler is added, the sealing performance Can significantly improve the conclusions, so as to determine the pressure of coal seam sealing technology, especially coal seam and soft rock sealing provides a more ideal material. Research shows that three-phase foam sealing technology is a new technology with a wide range of practical prospects.