Layered Testing Technology Application And Analyzed In Low Permeable Oil Field

Most domestic oilfield has entered high water development period,in order to improve the oil recovery,with more attention paid to the layered water injection technology,injection Wells layered water injection interval divided more and more fine,to solve the contradictions between layers in the process of the development,implementation,effective waterflood,keep the formation energy,an important means of maintaining oilfield long-term production,high yield.Daqing Oilfield has entered the development period of high water cut.With the requirement of subdivision water injection,the stratified water injection technology has changed greatly.The pipe column has been developed from a single fixed pipe column to a multicomponent one that can adapt to different well conditions,formation conditions and smaller interlayer.The stratified water injection process goes through the stages of hollow water distribution,eccentric water distribution,co-existence of various injection processes and intelligent allocation,which can supplement the energy of the formation well and improve the ripple coefficient and displacement effect.Through literature research,this article obtains from layered testing principle,in combination with the practical situation of field application,comparison and analysis of conventional plug,plug and quantitative measurement while technology application effect,affecting the oil packer sealing effect,separate injection effect,test efficiency factors such as the systematic study,without any increase in the test team and vehicles under the premise of considering factors such as interval properties,water mouth,can greatly improve the efficiency of layered debugging,achieve both shorten the test cycle,and to enhance the efficiency of the measurement adjustment work.On this basis,a set of layered test deployment method and operating procedures suitable for the layered waterflooding process are established,which can meet the needs of stratified injection and effectively improve the development effect.