Study on sand control effect and influencing factors of new sand consolidation agent in Bohai oilfield
The phenomenon of sand production in oil and water wells in Bohai oilfield is obvious,which leads to the shutdown of some oil wells without output.The chemical sand control process has low cost and quick effect,and has been popular in recent years.The use of new chemical sand consolidation technology can better consolidate the sand body,achieve the purpose of sand control,and complete the treatment of sand wells.Starting from the dy-namic and static parameters of the reservoir,the data of the treated wells are analyzed,and the correlation between the chemical sand control effect and many factors is studied by using the grey correlation theory.It is judged that the parameters such as shale content,reservoir thickness,formation temperature and water content before operation all affect the success rate of the new sand fixing agent operation to a large extent.Under the premise of successful op-eration of chemical sand control,the main optimization indexes for extending the validity pe-riod of chemical sand control are shale content,formation pressure,formation temperature,wa-ter content and so on.The results have been successfully applied in well A of Bohai oilfield,and the effect of sand control and production increase is obvious after implementation,which provides a reference for subsequent sand production well treatment and layer selection.
grey correlation analysischemical sand controlwell selection and layer selec-tionreservoir production increase
万方数据
维普
