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利用高精度电子压力计试井、同位素吸水剖面和氧活化注入剖面资料 ,以及油藏地质资料 ,结合油田开发动态 ,分析并解释了弱凝胶调驱对注水井渗流特性、地层污染和注入剖面的影响程度 ;指出了调驱有效与否在压降曲线上的不同反映规律 ;应用压降、压力恢复资料提供的信息 ,定量给出了胶体前缘的推进距离和推进速度的计算公式。
Based on well test, isotope water absorption profile and oxygen activated injection profile data of high-precision electronic manometer and reservoir geological data, combined with the development of oilfield, we analyzed and explained the seepage characteristics, formation contamination and injection profile The paper also points out the different reflection rules of the efficiency of the flood control on the pressure drop curve, and gives the quantitative formula of the advancing distance and the propulsion speed of the colloid front by using the information provided by pressure drop and pressure recovery data.