土工基础

›› 2016, Vol. 30 ›› Issue (4): 495-498.

• 工程实录 • 上一篇    下一篇

PVA凝胶堵漏剂的研究与适用性探讨

张世华1，彭振斌2，秦弋丰2，吴 聃2   

  1. （1.深圳市勘察测绘院有限公司，深圳 518028；2.中南大学地球科学与信息物理学院，长沙 410083
  • 收稿日期:2015-07-16 出版日期:2016-08-20 发布日期:2016-08-26
  • 作者简介:张世华（1989-），男，硕士研究生，助理工程师，研究方向为钻探工艺、钻井液等。

Feasibility of Leaking Sealing Using PVA Gels

ZHANG Shihua1, PENG Zhenbin2, QIN Yifeng2， WU Dan2   

  1. (1.Shenzhen Geotechnical Investigation&Surveying Institute Co.,Ltd，shenzhen518028；
    2.School of Geosciences & InfoPhysics, Central South University, Changsha 410083)
  • Received:2015-07-16 Online:2016-08-20 Published:2016-08-26

摘要： 介绍了聚乙烯醇（PVA）和硼砂反应形成凝胶的机理，并通过对凝胶型堵漏剂PVA和硼砂室内试验的复配，确定了PVA凝胶型堵漏剂的最佳配方。根据实际漏失地层进行模拟测试，验证了凝胶堵漏剂在处理破碎地层的小裂隙、孔隙漏失等情况具有良好的效果。

关键词: 凝胶, 堵漏, 聚乙烯醇, 硼砂

Abstract: The principles of the formation of the gel as reactions between polyvinyl alcohol (PVA) and borax are briefly introduced in this paper. The PVA gel can be potentially used as a sealing material for the leaking. The various mix designs of the PVA gel were laboratory tested and the optimized mix design was obtained. The field tests indicated that this material can be satisfactorily used in broken soils with small fissures.

Key words: PVA Gels, Leaking Sealing, Polyvinyl Alcohol, Borax