Countermeasures for the Potential Formation Problem of Weak Alkaline Ternary Water Content Recovery Period in the East-West Block of Beiyi District
Since the self injection of the weak alkali ternary block in the North First district,it has gone through four injection stages.Currently,it is the middle and late stages of water content recovery in the subsequent polymer protection plug stage.How to effectively control the water content recovery is the current situation faced.By applying reservoir engineering theory and combining it with the geological characteristics of polymer injection block development,fine geological dissection,potential tapping measures,production dynamic analysis,and fine process management were carried out to stop injecting high permeability layers,improve the utilization degree of thin and poor layers,and optimize the system.The main problems and contradictions affecting the development effect of weak alkali ternary composite flooding in the north one block were deeply analyzed,and the overall development effect of various works and blocks was evaluated.
ternary composite driveinjection parameter adjustmentdegree of utilization of thin differential layer
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