Wld is a high - temperature anti - sloughing agent , which contains si and organic compound ion . by applying it with polymer drilling fluid in the high - temperature deep well and the well section of heaving mud shale , it can improve the stability of drilling fluid dramatically . and at the same time , it can deactivate the drill cuttings and the wall surface active point to greatly improve the property of rejection and anti - sloughing of the drilling fluid through the physical - chemical action occurring between the special group of molecule vs . drill cuttings and the wall surface Wld高温防塌剂是一种含有si元素和有机复合离子的抗高温防塌剂，在高温深井及易垮塌的泥页岩井段配合聚合物钻井液使用，不仅可以显著改善钻井液的稳定性，而且可以利用分子中的特种基团与钻屑和井壁表面发生物理-化学作用，使钻屑和井壁表面活性点钝化而显著提高钻井液的抑制防塌能力。
As is seem from above , if the natural ground is filled directly in high - fill side slope at liho airport . the entire stability of the side slope filled is good . there are n ' t global stability problems alongside with the hight of the strong - moderate weatheing mud shaly , but there are n ' t unstable location partly , alongside with overburden slipping 四川大学工程硕士专业学位论文通过以上分析得知，荔波机场高填方边坡若直接在天然地基上填方，填方边坡整体稳定性较好，场区不存在沿强一中风化泥页岩的深部整体失稳问题。
