摘要
江汉油田进入开发中后期,油水井套管损坏严重。研究总结出套铣、取套、套管回接等系列工艺技术,收到了较好的应用效果:截止2009年2月,江汉油区累计增油23099.9t,增注79688m3。取套换套井充分利用原井井眼,节约了部分套管和地面管网建设费用的要求,经修复的油水井完善了井网调整,可以满足油田开发后期的油区调整计划;取出的套管为江汉油区套管损坏原因分析提供了具体实特,为套管防护方案的采取提供了依据。
Jianghan Oilfield has gone into the middle and late development stage and the casing failure in oil and water wells is very serious. A series of technologies in washover, replacing casing and casing tieback and so on have been developed, obtaininggood application effect. By the end of February, 2009, accumulatively increased oil production is 23099.9t in Jianghan oil area, with increased waterflood volume of 79688m^3. Because of sufficiently using original wellbore in the well needed to replace casing, a part of the expenses of casing and pipe network construction on surface of the earth can be saved. Through repairing oil and water wells, well pattern adjustment efforts have been improved, which may meet the well pattern adjustment plan in the oil area at late stage of oil field development. What＇s more, the damaged casings taken out from oil and water wells provide the concrete samples for analyzing the reasons why casings are damaged, also providing the foundation for taking casing protection plan in the oil field.
出处
《江汉石油职工大学学报》
2009年第6期45-49,共5页
Journal of Jianghan Petroleum University of Staff and Workers
关键词
取换套管
工艺修井技术
套铣
取套
套管
Replacing Casing
Technological Technique in Workover
Washover
Casing
