The Research and Application of Profile Control and Displacement Technology of In-situ Gas Generation in Bohai Oilfield

In most production wells in Bohai oilfield,large-section sand control and general injection-production methods are mainly used. The water cut of production wells increases rapidly. Chemical regulation and flooding technology is an effective means to deal with such problems. For this reason, the profile control and displacement technology of in-situ gas generation was studied and successfully applied in a D3 well group in Bohai oilfield. The oil production rate has been increased greatly after application, and good economic benefits have been obtained.