安塞油田谭家营油区长2油藏剩余油分布规律及潜力研究

以油藏数值模拟方法为主,同时结合综合地质分析方法对安塞油田谭家营油区长2油藏分小层进行了河流相低渗透储层剩余油成因类型、分布规律及剩余油潜力研究。认为井网未控制型剩余油、注采不完善型剩余油、厚油层顶部滞留型剩余油、层间干扰型剩余油是主要的剩余油成因类型;长21-2储量动用程度高,但剩余储量的绝对数较大,仍然是开发的主力层位,长21-3动用程度很低,但由于存在底水,底水锥进严重,需加强动用程度及开发控制。

Study on Residual Oil Distribution Law and Potential of Chang-2 Reservoirs in Tanjiaying Oildom of Ansai Oil Field

Through use of the numerical reservoir simulation which be taken in the thesis as a main way and general geological analysis as secondarily field,to study its genetic type of low permeability reservoir of fluviatile facies,the distribution law and the potential of residual oil ind ividual layer as individual layer in Chang-2 reservoirs of Tanjiaying oildom of An sai oil field.The authors think types of main residual oil contain that didn't controlled by well net,is spread to the area by water flooding and exloitation,is resorted on the top of thick oil layer,and is in terfered by in terbedding.