钻井液加重剂回收试验研究  

Experimental Research on Recovery of Drilling Fluid Weighting Compound

作　　者：刘培坤[1] 徐金广[1] 张悦刊[1] 杨兴华[1] 

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《过滤与分离》2017年第2期1-5,共5页Journal of Filtration & Separation

基　　金：国家自然科学基金(21276145);山东省自然科学基金项目(ZR2016EEM37);山东省重点研发计划项目(2016GSF117013)资助

摘　　要：废弃钻井液中微细颗粒含量高,泥化现象严重,导致在回收钻井液中的加重剂时普遍存在回收效率低、成本高、易造成环境污染等难题。利用固相间的密度差异,采用旋流器对加重水基钻井液中的重晶石进行分选回收。采用Φ25 mm旋流器对重晶石进行了分选试验,结果表明,在0.5 MPa进料压力下,重晶石回收率达到83.15%,使泥浆加重材料得到有效的回收利用。There are a large number of fine particles and serious sliming in waste drilling fluid, which results in many prob- lems in the process of recovering the weighting agent in drilling fluid such as low recovery efficiency, high cost and environmen- tal pollution. In this paper, using the density difference between the solid phases, the cyclone was used for the separation and recovery of barite in weighting water-based drilling fluid. The barite classification test was carried out by using a Ф25mm hy- drocyclone. The results showed that the barite recovery rate reached 83.15% under the feeding pressure of 0.SMPa, so that the mud weighting material was effectively recycled..

关 键 词：水基钻井液 加重剂 旋流器 分选 

分 类 号：TQ028.54[化学工程] X703.1[环境科学与工程—环境工程]