油井套损原因及生产特征分析  

Reason Analysis of Casing Failure and Production Characteristics

作　　者：杨松[1] 张志刚 

机构地区：[1]塔里木油田工程技术部,新疆库尔勒841000 [2]成都西南石大石油工程技术有限公司,四川成都610500

出　　处：《辽宁化工》2016年第11期1418-1419,1423,共3页Liaoning Chemical Industry

摘　　要：套管损坏在很大程度上影响着油气井的正常生产,甚至导致油气井报废,通过分析总结,认为套管损坏的原因主要分为外因和内因,外因主要是指大型的增产措施导致套管承压过高,降低其性能,内因主要是地层压力变化导致的地层下沉或滑移造成套管发生应力损坏,入井流体或产出液对套管的腐蚀等。通过对不同原因导致的套损进行快速、及时的识别有利于及时对油气井套损做出处理。Casing failure can influence the production of oil-gas well to a great extent, even resulting in oil and gas wells scrapped. According to the analysis, it＇s pointed out that the reasons of casing failure include inner reasons and outer reasons. The key outer reason is the giant well stimulation making the case bearing high pressure, reducing the performance of the case. The inner reasons are the change of formation pressure and corrosion caused by work liquid. Identifying the reason of case failure in time is in favor of handling the case failure.

关 键 词：套损 应力损坏 腐蚀 

分 类 号：TE357[石油与天然气工程—油气田开发工程]