The invention relates to a water injection well with blood pressure increase injection agent and preparation method belongs to the field of chemical agent, is made from 15 to 25% of the carboxylic acid higher alcohol ester three methyl ammonium chloride, 1 ~ 10% of trimethylamine hydrochloride, 1 to 10% of the two poly dimethyl diallyl ammonium chloride, 1 ~ 5% poly ethylene oxide, 1 to 2% of the ammonia three acetic acid three sodium, 5 ~ 10% ethylene glycol monomethyl ether and water. The preparation method is water, carboxylic acid higher alcohol ester three methyl ammonium chloride, ethylene glycol monomethyl ether and polyethylene oxide mixed evenly, and heated to 45 to 60 DEG C, stirring; then trimethylamine hydrochloride, two poly dimethyl diallyl ammonium chloride and ammonia three acetic acid three sodium added by a process the material in the continuous stirring is prepared by injection wells increase antihypertensive agent injection, the dosage was 0.5% (m/m) conditions, can reduce the injection pressure of more than 28%, increase the injection volume of more than 40%, which can effectively solve the late stage of oilfield development and low permeability reservoir of high injection pressure and injection the injection system is difficult, the problem of high energy consumption.
【技术实现步骤摘要】
本专利技术属于油田化学用剂,特别是涉及到一种注水井用降压増注剂及制备方法。
技术介绍
大庆油田已经进入到开采生产中后期,确保原油产量和降低开发成本一直是大庆油田的工作重心。随着聚合物驱油和三元复合驱等技术手段的推广,虽然在一定程度上稳定并增加了部分产量,但因其开采成本高和集输处理难度大等因素的存在,致使上述措施始终未能全面推广。常规水驱开采和精细水驱挖潜仍是大庆油田稳定原油产量的主要手段,但大庆油田经过长期的开发,近乎全部的主力油层已开发动用,水驱采出液平均含水已达到95%以上。目前油田开发对象已转到薄差低渗透储层,低渗透油藏储层的地质物性较差,主要是低孔喉、低渗透型的储层结构,另外胶结物含量较高。其储层地质物性导致其注水井注水压力高、注水困难、注入系统高能耗。造成上述问题的主要因素在于:一是原油开采中后期储层孔径内残余的石蜡胶质、沥青质等有机高分子物质造成孔径通量变得狭小,粘滞阻力和摩阻增大;二是水锁和贾敏效应对储层的伤害;三是低渗透油藏储层的地质特性使注入 ...
【技术保护点】
一种注水井用降压増注剂,是由下列物质按重量百分比制成:羧酸高碳醇酯基三甲基氯化铵 15~25%、三甲胺盐酸盐或氯化铵1~10%、聚二甲基二烯丙基氯化铵1~10%、聚氧化乙烯1~5%、氨三乙酸三钠1~2%、乙二醇单甲醚5~10%、余量为水。
【技术特征摘要】
1.一种注水井用降压増注剂,是由下列物质按重量百分比制成:羧酸高碳醇酯基三甲
基氯化铵15~25%、三甲胺盐酸盐或氯化铵1~10%、聚二甲基二烯丙基氯化铵1~10%、聚氧
化乙烯1~5%、氨三乙酸三钠1~2%、乙二醇单甲醚5~10%、余量为水。
2.如权利要求1所述的一种注水井用降压増注剂,其特征在于羧酸高碳醇酯基三甲基
氯化铵18~22%、三甲胺盐酸盐或氯化铵3~8%、聚二甲基二烯丙基氯化铵4~8%、聚氧化乙
烯2...
【专利技术属性】
技术研发人员:代国臣,孙玉波,孙豫庆,祝显江,李英,董翠婷,卢炳霖,代珺良,
申请(专利权)人:大庆市富杰化工有限公司,
类型:发明
国别省市:黑龙江;23
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。