Study on the influence of oilfield water injection on casing damage

The casing damage of oil and water wells has seriously affected the normal production oilfield. This paper analyzes high occurrence in Saertu layer, finds that there is a contradiction between injection formation prevention control damage. Although wellhead pressure can be guaranteed to lower than its fracture during production, injected energy at includes potential kinetic energy. Because relatively low, total often higher pressure, resulting an excess pressure. Unreasonable will lead destruction underground rock stratum, which acts on forms