论文部分内容阅读
介绍用化学固化方法处理废钻井液,其实验内容包括两部分:一是选用固化剂,对废钻井液进行固化处理,考察固化时间、固化温度对固化程度的彰响;二是将固化7d后的样品加入去离子水,振荡8h,制备固化体浸出液。通过对现场固化剂的选择;废钻井液固化处理效果;固化温度对固化效果的影响;固化时间的影响;与国外专利配方处理比较5个方面的室内试验证实,废钻井液固化后有一定强度,其水浸出液清彻透明,无毒无害,达到排放标准,固化体可进行掩埋恢复地貌,也可作为建筑材料使用。文中还针对不同的现场条件,在不适于固化处理的地区,进行了固液分离处理的室内研究,研究出了以HPAM为主,酸为辅的固液分离絮凝剂。考查了HPAM的分子量、水解度以及酸浓度对分离效果的影响。
Introduced the chemical solidification method to treat waste drilling fluid, the experiment includes two parts: one is the choice of curing agent, the waste drilling fluid curing treatment, inspection curing time, curing temperature on the curing extent of the second; curing the second 7d The sample was added to deionized water and shaken for 8h to prepare a solidified body leachate. Through the selection of curing agent in the field, the effect of solidification of waste drilling fluid, the effect of curing temperature on the curing effect, the influence of curing time, and the comparison with the foreign patent formula processing, it is verified by laboratory tests that the waste drilling fluid has a certain strength , The water leachate clear and transparent, non-toxic and harmless, to meet emission standards, the cured body can be buried to restore the landscape, but also can be used as building materials. In this paper, different field conditions were also studied in the field of solid-liquid separation unsuitable for curing treatment, and the HPAM-based solid-liquid separation flocculant was developed. The effect of HPAM molecular weight, degree of hydrolysis and acid concentration on the separation was investigated.