防蜡剂与渗透剂复配用于清防蜡及油层解堵  

CLEANING HEAVY CRUDE WELLS BY USING MIXTURE OF COMMERCIAL PARFFIN INHIBITOR WITH SURFACTANT

作　　者：马毅勇[1] 赵泰福 郭彦海[1] 

机构地区：[1]河南石油勘探局魏岗油矿,河南省南阳油田魏岗油矿473132

出　　处：《油田化学》1993年第2期173-175,共3页Oilfield Chemistry

摘　　要：简要介绍了ZY-3型水基清防蜡剂与T型渗透剂的复配体系的清防蜡及解堵机理、复配液对魏岗原油流变性的影响,提出了复配液的使用方法。现场应用结果表明该复配体系具有良好的清防蜡、破乳、降粘、解堵作用。The crude oil of Weigang Oil Field, Henan, is viscous and heavy and the reservior is water flooded for a long time. Well temperature drop,oil viscosity increase and wax diposition in producing wells have become severe problems. To continue the oil production it was necessary to perform well washing jobs with hot water very frequently. A more effective way of workover is developed, that is, to displace a mixture of commercial paraffin inhibitor,ZY-3, and an anionic surfactant, sodium β-sulfo-succinate, in ratio 4:1 by hot(75℃)water through circular space to the well bottom and let it stand there under water pressure for 5 hrs. The amount of chemicals 25-50kg per a treatment, period between treatments(90) 60-15 days depending on oil production of the well. In Weigang Oil Field this chemical way of well cleaning leads to very satisfactory results. The changes in rheological behavior of the crude oil treated by this chemical mixture are presented.

关 键 词：油井 清蜡剂 防蜡剂 油层 解堵 

分 类 号：TE358.2[石油与天然气工程—油气田开发工程]