长春岭下限层热试油方法及效果

长春岭地区下限层储层物性差,原油粘度高且流动性差。针对该地区常规试油产量极低的问题,通过采用向地层注入混合热蒸汽对地层、流体加热,以降低原油粘度、增加储层弹性能量和流体流动性,达到了提高油产量和采收率的效果。经过理论研究和现场实践证明,对常规试油只见油花的下限层采用蒸汽吞吐热试油的方法能达到工业油流标准,对油田的增储上产起到很大作用。

Method of Thermal Test for Lower Layer of Changchunling Area and Its Effect of Oil

Reservoir physics of lower layer at Changchunling area is poor,whose oil viscosity is high and mobility is poor.To problem of very low production for conventional oil test,by injecting mixture hot steam into formation to heat region and fluid so as to reduce oil viscosity,increase the reservoir of elastic energy and fluid flow,to improve oil production and harvesting rate effect.Through theoretical study and field practice,it proves that lower layer for which using method of thermal test oil slick saw achie...