酸化磁化振荡增注工艺的应用

Application of injection increasing technique by acidizing magnetization oscillation.

通过对梁家楼油田水井欠注原因的分析，提出了酸化磁化振荡增注工艺，并对该工艺的增注机理进行了探讨。研究表明：酸化后，下入磁化振荡器进行注水是一个动态解堵的过程，既有利于注水，又减少或抑制了堵塞物的二次形成，从而保持了酸化效果，延长了增注有效期。现场应用后，酸化磁化振荡增注有效期较酸化增注有效期延长了１．３７～３．７５倍，措施效果明显。

After the analysis of lack of injection in Lianjialou oilfield, an injection increasing technique by acidizing magnetization oscillation was put forward and its mechanism has been researched. It shows that the water injection after acidized then magnetized oscillation is a activating blocking relieved process.This process is helpful for injection and reduces the secondary blocking, so keeping the acidizing effect and prolonging the valid period of injection increase. Field practical applications show that valid period of acidizing magnetization oscillation for the injection is prolonged 1 37～ 3.75 times that of acidizing only. The effect is obvious.