增效注汽在井楼油田的研究与应用

Development and application of advanced effect injecting steam in Jinglou oilfield

随着井楼油田稠油热采进入开发后期,吞吐效果逐渐变差,主要表现在周期油汽比低,存水率上升,地层亏空,依据增效注汽原理和室内实验,在井楼油田六口油井上先后进行了增效注汽现场试验,试验表明:增效注汽可降低原油粘度,提高驱油效率,改善吸汽剖面的作用,为稠油热采的后期高效开发提供了可借鉴的经验。

When heating oil production of heavy oil enters into the last stage of opening up in Jinglou oil-field, the effect of swallowing and spitting has gradually became poor, the main features are that the percentage of oil and steam ration is low, water cut rises and layer has a deficit. We have done the test of advanced effect \{injecting\} steam on the spot for six oil wells in Jinglou oilfield by using the theory of advanced effect injecting steam and test in room, the results are which advanced effect injecting steam may drop the viscosity of oil, that can raise the efficiency of driving oil, and can improve works of absorbing steam, these have applied referential experiences in the last stage of high efficient opening up about heating oil production of heavy oil.