薄层稠油油藏蒸汽吞吐后剩余油分布规律

Remaining Oil Distribution at Thin-Layer Heavy-Oil Reservoir after Steam Soaking

薄层稠油油藏利用蒸汽吞吐开发较长时间后,井底的油水分布情况发生改变,此时开展剩余油分布规律的研究,可以明确油藏挖潜方向。通过油藏数值模拟方法,分别研究了油层渗透率、孔隙度、厚度、注汽干度对剩余油分布的影响,得出了薄层稠油油藏蒸汽吞吐后的剩余油分布规律。

In thin-layer heavy-oil reservoir,the oil-water distribution of bottom was changed after a long time of steam soaking.It is conducive to dig the reservoir potential by the study of remaining oil distribution.The rule of remaining oil distribution was worked out by numerical reservoir simulation,which included the influence of permeability,porosity,thickness and steam quality.