论文部分内容阅读
聚合醇类水基防塌钻井液体系(简称PEM)作为适应环境保护要求的一种新型钻井液体系应用越来越广泛。PEM的核心处理剂为聚合醇类水基防塌润滑剂JLX,JLX是一种非离子型低分子量聚合物,其作用机理是具有浊点特性。研究了钻井液体系及常用处理剂对两种聚合醇JLX_1和JLX_2浊点的影响。实验结果表明,无机处理剂如KCl对JLX浊点有显著的影响;而有机高分子处理剂的影响则较复杂,低浓度时能使JLX浊点上升,高浓度时则使JLX浊点下降;体系也能降低JLX浊点,并且对低浓度的无机处理剂如KCl有一定的缓冲作用。
Polymeric alcohol water-based anti-collapse drilling fluid system (referred to as PEM) as a new type of drilling fluid system to meet the requirements of environmental protection is more and more widely used. PEM’s core treatment agent is a polymeric alcohol water-based anti-collapse lubricant JLX, a non-ionic low molecular weight polymer whose mechanism of action is cloud point. The effects of drilling fluid system and common treatment agents on the cloud points of two polymerized alcohols JLX_1 and JLX_2 were studied. The experimental results show that inorganic treatment agents such as KCl have a significant effect on the cloud point of JLX. However, the effect of organic polymer treatment is more complicated. The cloud point of JLX can be increased at low concentration, while the cloud point of JLX decreases at high concentration. The system also reduces JLX cloud point and has some buffering effect on low concentrations of inorganic treatment agents such as KCl.