低压井负压连续冲砂工艺技术研究与应用  

Research on Continuously Washed Sand Technology by Under-Balance Pressure for Low Pressure Well and Its Application

作　　者：薛清祥[1] 尤秋彦[1] 胡金铜[1] 刘攀峰[1] 

机构地区：[1]大港油田石油工程研究院,天津300280

出　　处：《油气井测试》2011年第6期60-61,64,共3页Well Testing

摘　　要：针对目前国内冲砂技术存在因过多停泵造成井筒砂重新沉到井底造成二次危害、冲砂技术不能实现负压或负压不连续的问题,研究了低压井负压连续冲砂工艺技术。论述了该技术的工作原理、参数优化及工具设计等。通过现场试验证明,该技术可以实现连续负压冲砂,有效解决因为停泵造成井筒砂重新沉积的问题,具有很好的应用前景。To problems of thewell bore sand sinkingtothe bottomto cause secondary damage because of stoppingthe pump toomanytimes forthe domestic technology at present and washed sand technology not achieving negative pressure or negative pressure discontinuity,washed sand tech under-balance pressure for low pressure well is studied.The working principle,parameter optimization and tool design of the technology are discussed.Through the field test proved that the technology can achieve a continuous negative pressure washed sand,which solves the problem of the re-deposition of sand because of stopping the pump effectively,has a good applied prospect.

关 键 词：负压连续冲砂 现场应用 工艺技术 

分 类 号：TE353.2[石油与天然气工程—油气田开发工程]