基于阳离子与聚合物絮凝反应的阳离子调堵剂的优选  

Optimization of Cationic Plugging Agent According to the Flocculation Reaction Mechanism of Cationic and Polymer

作　　者：闫文华[1] 闫炳旭 杨兆明[2] 段效威[3] 

机构地区：[1]东北石油大学提高采收率教育部重点实验室,黑龙江大庆163318 [2]大庆油田有限责任公司,黑龙江大庆163318 [3]辽河油田公司锦州采油厂,辽宁盘锦124010

出　　处：《当代化工》2015年第12期2755-2758,共4页Contemporary Chemical Industry

基　　金：中国石油科技创新基金研究项目"特高含水期二元驱多段塞等流度驱油方法研究";项目号:(2013D-5006-0203)

摘　　要：成功筛选阳离子选择性调堵剂对油田提高采收率、防止井窜、改善地层均质性均有非常重要的意义。针对辽河油田J16区块二元驱窜聚井低效循环、驱油效果不理想等复杂问题,利用阳离子调赌剂与聚合物能发生絮凝反映的原理,对调驱体系配方中与聚合物反应的阳离子种类及其用量进行了实验筛选。结果表明:所选用的7种阳离子调堵剂中,调堵剂1、2、4的聚沉效果较好;在聚合物浓度低于1 500 mg/L的条件下,阳离子调堵剂1、2、4作为优选出的阳离子堵剂较为理想;聚合物浓度分别为100、500、1 000、1 500 mg/L的条件下,阳离子堵剂的浓度为1 000、3000、5 000、10 000 mg/L较为理想。It has important significance to select correct cationic adjustable plugging agents for improving oil recovery, preventing well channeling, improving the formation heterogeneity. The wells of binary flooding of J16 block in Liaohe oilfield exist some complex problems, such as low effective circulation and poor oil displacement effect. Using the principle that cationic adjustable plugging agents can work with the polymer,experiments were carried out to select the types and the use levels of cationic adjustable plugging agents which can work with polymer in the drive system. The results show that among the chosen seven kinds of cationic plugging agents, the first,second and forth plugging agents＇ coagulation effect are better; under the condition of polymer＇s concentration less than 1 500 mg/L, the first, second and forth plugging agents are relatively ideal; when polymer＇s concentration are 100, 500, 1 000, 1 500 mg/L, the better concentration of the cationic plugging agents are 1 000, 3 000, 5 000, 10 000 mg/L.

关 键 词：阳离子堵剂 堵剂种类 堵剂用量 调驱封窜 

分 类 号：TE357[石油与天然气工程—油气田开发工程]