新型地层内聚合堵水剂的室内研究  

Experimental Study of A New Polymerized Blocking Agent in Formation

作　　者：刘祥[1] 王永鹤[1] 王家祥[1] 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065

出　　处：《石油天然气学报》2014年第2期153-156,10,共4页Journal of Oil and Gas Technology

基　　金：陕西省自然科学基金项目(2013JQ2015)

摘　　要：在油田开采过程中,为了封堵高渗透、大孔道、裂缝性地层,提高水驱油采收率,最常用的方法就是采用化学堵水。研究了由丙烯酰胺、2-丙烯酰胺基-2-甲基丙磺酸、丙烯酸、交联剂、过硫酸铵、聚丙烯酰胺等组成的地下共聚交联成胶堵水体系。讨论了影响聚合反应的因素,对合成聚合物凝胶性能进行了评价。聚合体系凝胶强度较大,且有一定的吸水膨胀性和良好的抗盐性,封堵效果好,显示出较好的堵水效果。In the development of oilfield,to seal the reservoirs with high permeability,big pore path,fractures and enhance oil recovery ratio of waterflooding,the commonly used method was water plugging by chemical ways.The underground copolymerization crosslinking water plugging system was studied,which was composed of acrylamide,2-acrylamide-methallyl sulfonate,acrylic acid,crosslinker,ammonium persulfate and polyacrylamide.The factors influencing the polymerization reaction were discussed,the polymerizable gel property was evaluated.The results show that the gelling strength is strong,it has good property of adsorption and expansion and good salt resistance,good sealing and water plugging effect.

关 键 词：堵水剂 聚合凝胶 丙烯酰胺 化学堵水 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]