The Studies On Dynamic Performance Analysis Of Polymer Flooding In SABEI Oilfield

This text systematically analyses the dynamic variation character of the Block BeiErxi polymer flooding during polymer flooding and subsequent water flooding, presents the major factors to affect the development effect in polymer flooding and raises the efficient measure to improve the development effect in polymer flooding. As a result of this analysis, to weaken the interblended conflicts and to improve polymer flooding and injecting-producing situation, the injecting volume could be increased in timely. To improve the plane & interblended conflicts in the latter of polymer flooding and to further enhance the comprehensive effect of polymer flooding, the conjoint technology of separating injecting and quota could be the efficient countermeasure. This text analyses the breakthrough discipline of polymer frontage, and the oil formation exploitation character variation after breakthrough, also briefly summarizes the functions of all adjusting measures, meanwhile analyses the Block Beierxi new coring data and wall coring data and find out the parameters'variation discipline of the oil formation porosity & permeability after water-flooding , polymer-flooding and subsequent water-flooding. This text analyses the residual oil distribution and existing pattern in the current formation and oil saturation situation. According to the variation character, subdivide the subsequent water-flooding development stage and summarizes the dynamic variation discipline in different stage, and analyses & evaluates the comprehensive adjusting & tapping efficiency in different stages. According to the fault zone character, the comprehensive handling method has the guiding meaning for other polymer-flooding zones.