New technology in chemical flooding and its current status and prospects in Huabei oilfield
Chemical flooding is an important technology to substantially enhanced oil recovery(EOR)of oil-fields.The chemical flooding theory and technology were continually innovated so that the application scale were constantly expanding.Particularly,the polymer flooding technology enhanced oil recovery about 14%,while,the data was more than 18%for SP compound system flooding technology and ASP compound system flooding technology.Based on the understanding of the progress and prospect of chemical flooding technology,this paper introduced the actual situation of the development of complex fault-block sandstone reservoirs in Huabei oilfield.The expected recovery rate of nano oil displacement technology could reach over 80%.The per-formance of surfactant system for mid phase micro lotion flooding had been continuously broken through,which had made good oil increase effect in the field.Deepened the understanding of chemical flooding technol-ogy and analyzed the actual situation of complex fault block sandstone reservoirs in Huabei oilfield,this paper focused on the current situation of the deep control and flooding technology sequence based on movable gel and the further improvement of oil recovery after control and flooding.It is necessary to deepen the understanding of the distribution law of remaining oil in the reservoir,continuously strengthen the basic theoretical research and constantly promote innovation in technology.In addition,chemical flooding technology also needs to devel-op the surface engineering in order to achieve sustainable development of oilfield development.
NETL
NSTL
万方数据
维普
