含聚污水回注储层解堵复合添加剂研发
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摘要
为降低含聚合物污水回注地层后对储层物性的损伤,借助化学分析的方法对含聚污水的成分迚行了深入的分析,从含聚污水造成堵塞的具体原因出収,研制了以氧化剂、表活剂和洗油剂为主要成分的降解剂;为了有效防止污染物沉积于孔道壁面及提升解堵剂的解堵性能,研制了孔道防堵剂和润湿剂;为了能够防堵剂对管线以及井筒造成腐蚀、避免地层中的粘土矿物与解堵剂収生反应,研制了储层解堵复合添加剂。经实验研究収现,配制的含聚污水解堵配方即能够起到良好的作用,对于孔道也有着良好的保护作用,具有一定的推广意义。
In order to reduce the damage of reservoir physical properties caused by polymer-containing sewage reinjection into formation, the composition of polymer-containing sewage was analyzed in depth by means of chemical analysis method. Starting from the specific causes of blockage caused by polymer-containing sewage, a degrading agent with oxidant, surfactant and oil-washing agent as the main components was developed. In order to effectively prevent pollutants from depositing on the pore wall and enhance the performance of blockage-removing agent,blockage preventing agent and wetting agent were developed. In order to prevent the corrosion of pipelines and wellbore caused by blockage inhibitors and avoid the reaction between clay minerals and blockage removal agents in formation, a composite additive for reservoir blockage removal was developed. The experimental study showed that the plugging removal formula played a good role, and also had good protective effect on the channel.
In order to reduce the damage of reservoir physical properties caused by polymer-containing sewage reinjection into formation, the composition of polymer-containing sewage was analyzed in depth by means of chemical analysis method. Starting from the specific causes of blockage caused by polymer-containing sewage, a degrading agent with oxidant, surfactant and oil-washing agent as the main components was developed. In order to effectively prevent pollutants from depositing on the pore wall and enhance the performance of blockage-removing agent,blockage preventing agent and wetting agent were developed. In order to prevent the corrosion of pipelines and wellbore caused by blockage inhibitors and avoid the reaction between clay minerals and blockage removal agents in formation, a composite additive for reservoir blockage removal was developed. The experimental study showed that the plugging removal formula played a good role, and also had good protective effect on the channel.
引文
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[2]张硕,赵文娜,吴海明,等.非酸解堵技术原理及其应用[J].中国石油和化工标准与质量,2018,38(22):116-117.
[3]王牧.合水油田注水区块储层堵塞机理及治理措施[J].辽宁化工,2018,47(9):900-902+905.
[4]徐雅峰.一种高压注酸解堵技术在渤海注水井的应用[J].石油化工应用,2018,37(4):99-103.
[5]郭云峰,黄嘉琦.低渗油田储层酸化解堵技术应用[J].辽宁化工,2017,46(11):1132-1134.
[6]陈霄,梁玉凯,龚云蕾,等.X井复合解堵液体系性能研究及应用[J].重庆科技学院学报(自然科学版),2017,19(6):39-41.
[7]文豪,蒋帅.埕东油田西区二元驱聚合物驱堵塞原因与解堵技术分析[J].内江科技,2017,38(5):31-32.
[8]高尚,张璐,刘义刚,等.渤海油田聚驱受效井液气交注复合深部解堵工艺[J].石油钻采工艺,2017,39(3):375-381.
[9]王萌,江厚顺.活性剂对油田污水回注影响研究[J].当代化工,2016,45(7):1343-1346.
[10]孙宁,柏明星,赵宇.油田污水回注对不同渗透率储层伤害评价研究[J].当代化工,2016,45(4):782-784.