作　　者： ; ; ; ; ;

机构地区： 东北石油大学石油工程学院

出　　处： 《大庆石油学院学报》 2003年第4期24-26,共3页

摘　　要： 在室内两维纵向非均质岩心上,研究了高质量浓度聚合物驱注入时机、聚合物相对分子质量、聚合物段塞体积及段塞组合对驱油效果的影响。结果表明:聚合物质量浓度越高,采收率越大,产出液处理量越小,经济效益越大;越早转注高质量浓度聚合物驱采收率越大;随着聚合物段塞体积的增大,聚合物驱采收率增加,但聚合物段塞体积增大到一定值后,采收率增加的速率开始变缓;聚合物相对分子质量越高,驱油效果越好;在聚合物总用量不变的条件下,阶梯段塞驱油效果略优于整体段塞。 A new enhanced oil recovery technique is put forward. The timing of polymer solution injection, polymer slug and molecular weight on the oil displacement efficiency are studied by core floods. The results indicate that the higher the polymer concentration is, the better the recovery result is, the less the treatment of the product fluid is. It is also shown that oil recovery increased with polymer solution slug before a given value, and inclined to level after the value. Under the condition of the same polymer amount, the oil displacement efficiency of the bulk slug is higher than that of the staggered slug.

关 键 词： 提高采收率 黏弹性 高质量浓度聚合物 驱油效果 大庆油田

领　　域： [石油与天然气工程]