Due to serious sensitivity to water and plugging by emulsification liquid, it was difficult to convert oil well to water injection well since water flood recovery in Zhangdian Oilfield.
张店油田进入注水开发以来，由于储层存在着严重的水敏、乳化液堵等伤害，致使油井转注较为困难。
Therefore, there is an urgent need of the survey on offshore injection well plugging, less injection mechanism and Broken Down injection technology.
因此，迫切需要对海上注聚井的欠注、堵塞机理以及解堵增注技术进行研究。
Plugging large pore in water injection well is the most important measures, and choice of plugging agent is getting more important.
封堵注水井的大孔道是控水稳油的重要措施，封堵剂的选择也越来越重要。
Controlling the water injection parameter solves the problems as water quality, difficult injection, well plugging and watered cut, which has acquired certain economical benefit.
严格控制注水参数，解决了水质超标、注水井注不进水、注水井堵塞、油井水淹等技术难题。
For the indoor lab experiments, in ground condition, the polymer injection process and the formation process are to study the extent and scope of SZ36-1 injection well plugging.
在实验室条件下，模拟了聚合物注入现场情况以及垢样生成过程，研究了SZ36 - 1注聚井注入堵塞程度和范围。
For the indoor lab experiments, in ground condition, the polymer injection process and the formation process are to study the extent and scope of SZ36-1 injection well plugging.
在实验室条件下，模拟了聚合物注入现场情况以及垢样生成过程，研究了SZ36 - 1注聚井注入堵塞程度和范围。
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