可控膨胀堵漏剂包覆工艺技术研究  

The Coating Techniques of a Controllable Swelling Lost Circulation Material

作　　者：薛玉志[1] 唐代绪[1] 刘振东[1] 侯业贵[1] 宋兆辉[1] 刘从军[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院

出　　处：《钻井液与完井液》2008年第5期23-25,共3页Drilling Fluid & Completion Fluid

摘　　要：研究了可控膨胀堵漏剂研制过程中的包覆技术,改进了包覆设备,优选了包覆材料和包覆方法,优化了包覆工艺参数,并用改进的包覆设备和优选的包覆材料、包覆方法,在最优的包覆工艺参数下(喷枪高度为10 cm、转速为45 r/min、空气流量为60 L/min),进行了可控膨胀堵漏剂的研制,并对可控膨胀堵漏剂进行了性能评价。结果表明,选用树脂800、树脂900和石蜡作包覆材料进行包覆效果较好,经包覆的高分子吸水膨胀树脂吸水速率明显降低、吸水量减少,包覆起到了抑制高分子吸水膨胀树脂吸水速度的作用。The coating techniques for a controllable swelling lost material(LCM) were studied and the coating devices were modified.Using the modified devices and coating techniques,a controllable swelling LCM was developed at optimized coating conditions: height of the jet was 10 cm,revolution speed was 45 r/min,and flow rate of air was 60 L/min.Performance evaluation of the LCM showed that the rate of water absorption of the coated high molecular weight water-absorption swelling resin was reduced,and so was the amount of water absorbed.Coating inhibited the water absorption of the high molecular weight resin.

关 键 词：高分子吸水膨胀树脂 包覆材料 可控膨胀堵漏剂 包覆工艺参数 

分 类 号：TE282[石油与天然气工程—油气井工程]