一种硅氧高分子化学防砂剂的合成及性能评价  

SYNTHESIS AND PERFORMANCE EVALUATION OF A SILICON OXYGEN POLYMER CHEMICAL SAND CONTROL AGENT

作　　者：周京伟 徐太平 袁发明 费廷凯 Zhou Jingwei;Xu Taiping;Yuan Faming;Fei Tingkai(Sichuan Gepetto Energy Technology Company Ltd.,Chengdu 610015,Sichuan,China)

机构地区：[1]四川捷贝通能源科技有限公司,四川成都610015

出　　处：《精细石油化工》2025年第2期29-33,共5页Speciality Petrochemicals

基　　金：油田化学事业部科技重大专项(GPT-YANFA-2020-01)。

摘　　要：为解决目前化学防砂方法局限性大、强度不够、储层伤害等问题,以二甲基二烯丙基氯化铵和丙烯酰胺为单体,以尿素、水玻璃和碳酸氢铵为原料,在30℃条件下发生共聚反应制得一种含有硅基团的化学防砂剂。该防砂剂在90℃下耐温性较好,防砂率为78.9%;最佳固化时间为16 h左右,出砂量为1.41 g;防砂剂在驱替流量5 mL/min时仍具有较好的耐冲刷性,出砂量为8.73 g;岩心水相和油相渗透率下降率分别为18.64%和9.35%;并且能够有效阻挡大于0.074 mm粒径的石英砂。To address the limitations,insufficient strength,and reservoir damage of current chemical sand control methods,the author designed and synthesized a chemical sand control agent containing silicon groups.The sand control agent was prepared by copolymerization reaction of dimethyl diallyl ammonium chloride with acrylamide,urea,water glass,and ammonium bicarbonate at 30℃.Through performance evaluation,it was found that the synthesized sand control agent has good temperature resistance at 90℃,with a sand control rate of 78.9%;The optimal curing time is about 16 hours,with a sand output is 1.41 g;The sand control agent still has good erosion resistance at a flow rate of 5 mL/min,with a sand output of 8.73 g;The decrease rates of water and oil permeability of the core samples are 18.64%and 9.35%,respectively;The sand control agent can effectively block quartz sand with a particle size greater than 0.074 mm,indicating that the silicon containing sand control agent has superior performance in all aspects.

关 键 词：油井出砂 有机硅 化学防砂 耐温 耐冲刷 

分 类 号：TE358[石油与天然气工程—油气田开发工程]