随着油田开发的深入,由于种种增油、增注措施,使井与井、层与层间压力不平衡,加剧了构造运动、泥岩膨胀、电化学腐蚀等作用,使油水井状况变得越来越复杂,套管损坏逐年增加,成为油水井生产中存在的一个重要问题。它直接影响油水井的生产寿命,进而影响油气的产量以及注水效果,成为油田增产道路上的绊脚石。 With the deepening of oilfield development, due to various oil increasing and additional injection measures, the pressure imbalance between well and well, layer and layer aggravate the action of tectonic movement, mudstone expansion and electrochemical corrosion, and make the status of oil and water wells become more The more complicated, casing damage increases year by year, has become an important issue in the production of oil and water wells. It directly affects the production life of oil and water wells, thereby affecting the production of oil and gas and water injection effect, become a stumbling block on the road to oil production.