【摘要】 腐植酸分子由多环芳核与多种活性官能团构成 ,具有多种功能 :酸性、界面活性、亲水性、阳离子交换能力、络合能力及吸附分散能力。基于其分子的亲水性、络合能力以及吸附分散能力 ,目前腐植酸类产品在油田上的应用基本是作为钻井液添加剂 (降滤失剂、页岩抑制剂和降粘剂 ) ,其产品具有降滤失、降粘、防塌功能 ,且具有较好的耐盐和耐高温能力。综述了腐植酸作为钻井液添加剂的应用状况 ,并分析了其在油田上的应用前景 ,如作井眼防垢缓蚀剂、杀菌剂、牺牲剂、深部调剖剂更多还原

【Abstract】 The molecule of humic acidconsists of multi aromatic rings and different active functional groups, and has many functions including acidity, interface activity, hydrophilicity, cation exchange capacity, complex capacity, adsorptive and dispersed capacities. In recent years, humic acids has been used in oilfield as filtrate loss reducer, shale inhibitor and viscofier for drilling fluid based on its complexing, adsorptive and dispersing capacities. This paper reviews its application in oilfield as drilling fluids additives, and points out its application prospect in oilfield as anti scaling additive, fungicide, sacrifice agent and profile control agent, etc..更多还原