油水井套损原因及治理优化策略分析

Analysis of Cause of Casing Damage of Oil and Water Wells and Treatment Optimization Strategy

随着油田产出液含水的逐步上升,注水开发规模的加大以及注采井使用年限的增加,油水井套损数量逐年加剧,不仅严重影响油田的正常生产,还是安全环保的重大隐患,阻碍了油田经济效益的提高,这一直困扰着油田的开发。在油田开采方面,高压灌溉的危险和不良的防腐措施很容易导致井壁损坏的问题,并危及注水开发设计的实际效果。因此,深入分析套筒损坏的原因并明确提出合理的预防措施具有重要的现实意义。

With the gradual increase of water cut of oilfield produced fluid,the increase of water injection development scale and the increase of service life of injection-production wells,the casing damage of oil and water wells is increasing year by year,which not only seriously affects the normal production of oilfield,but also is a major hidden danger of safety and environmental protection,hindering the improvement of economic benefits of oilfield.This has been puzzling the development of oilfields.In oilfield exploitation,the danger of high-pressure irrigation and poor anti-corrosion measures can easily lead to the problem of borehole wall damage and endanger the actual effect of water injection development design.Therefore,it is of great practical significance to deeply analyze the causes of sleeve damage and clearly put forward reasonable preventive measures.