非离子聚合物稳定水敏岩层的应用研究  

Applied research on stabilization of water-sensitive strata with non-ionic ploymers

作　　者：裴向军[1,2] 黄润秋[1] 靖向党[3] 韩祥森[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家专业实验室 [2]长春工程学院,长春130021 [3]长春工程学院

出　　处：《煤田地质与勘探》2005年第4期65-68,共4页Coal Geology & Exploration

基　　金：国家自然科学基金资助项目(40402025)

摘　　要：水敏岩层机械破碎出露的新鲜岩面遇水侵蚀产生软化或泥化现象,致使孔(槽)壁变形量增大而失稳。实验表明,低聚合度、非离子型、结晶性好的高分子聚合物无固相稳定液,能以较快的竞争吸附速度在岩石的内、外表面产生渗析胶结和吸附胶结,并在不可逆的作用力下成膜,因而能抑制由水引起的岩石软化、泥化和崩解,可用以解决使用各类泥浆自由水滤失量大且泥皮易脱落而造成的孔(槽)壁坍塌问题。That water-sensitive stratarn＇s fresh surface exposed by engineering machine are softened and argillizated by water will cause the deformation of rock increasing and lead the hole （pit） wall to be unsteady. Experiments indicate that non-solid phase stabilizing fluid of macromolecule polymeric of low polymerization degree, non-ion and good crystallization is able to produce dialytic and absorbent cementation on the inner and outer surfaces of the rock with rapider competitive absorption rate and form a film under a irreversible agent. Therefore, PAA non-ionic polymers can be used to solve hole （pit） wall collapsing problems caused by a great quantity of free water filtered from mud and the mud skin easy to fall off since they restrain water＇ s softening, argillizating and calving.

关 键 词：水敏地层 非离子聚合物 PAA无固相稳定液 钻孔 坍塌 

分 类 号：P634.64[天文地球—地质矿产勘探] O631.4[天文地球—地质学]