阴极保护在复杂断块油田的应用

Application of Cathodic Protection in Complex Fault-block Oilfield

中原油田是一个多层系、多油藏类型的复杂断块油田 ,随着油田开发时间的延长 ,油田已进入开发中高含水期 ,产出水矿化度高 ,腐蚀性强 ,地面集输管线及设施的腐蚀日益加剧 ,既影响了生产 ,又污染了环境。本文通过对其主力产油区块之一的胡状油田进行现场腐蚀状况调查 ,分析造成腐蚀的原因 ,针对其主要影响因素实施阴极保护措施 ,达到了延缓腐蚀、减少穿孔的目的。

Zhongyuan oilfield, a complex fault-block oilfield with fracture zones and complex reservoirs, has entered into the middle-late stage of its development. Factors such as high salinitized ground water and intense corrosion worsen gathering pipelines and facilities. The main reasons are analyzed according to in-situ investigation of corrosion conditions in Huzhuang oilfield that is one of the main production areas. Associated controlling measures of the key corrosion factors are made for delaying corrosion and reducing perforation