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对于注水开发油田,油层动用与否主要取决于油层水淹状况的判别,而影响水淹程度的因素多且复杂,既有地质因素又有开发因素,且每个影响因素所起的作用是模糊的,往往不能用确定型的数学关系式来进行评价。多级模糊综合评价方法能较好地解决这类问题。应用萨尔图油田南二、三区高台子取心井资料、吸水剖面等资料,结合高台子油层精细地质解剖成果,从包括砂体类型、砂体厚度、连通状况、构造部位、油层均质性等5个方面在内的地质因素和包括注采关系、注采井距、受效方向、吸水次数、措施情况等5个方面在内的开发因素对其油层的动用状况进行细致分析,并运用多级模糊综合评判的数学方法对其进行量化分析,基本确定南二、三区高台子油层剩余油潜力小,主要分布在表外储层以及大面积分布的薄差油层中,对该区井网加密调整具有积极的指导作用。
For the development of waterflooding oilfields, the utilization of oil layers mainly depends on the discrimination of reservoir flooding conditions. There are many and complicated factors that affect the flooding degree. There are not only geological factors but also development factors, and the effect of each factor is fuzzy Often can not be used to determine the mathematical relationship between the evaluation. Multi-level fuzzy comprehensive evaluation method can better solve these problems. Based on the data of well bore well and water absorption profile in the second and third blocks of South Block of Saertu Oilfield and the fine geologic anatomy of Gaotaizi oil layer, the paper analyzes the characteristics of sandstone body including sand body type, sand body thickness, connectivity, structural position, Sex and other aspects of the five aspects of the geological factors and including the injection and production relations, injection well spacing, the direction of effectiveness, the number of water absorption, measures and other aspects of the development of factors such as the use of its reservoir status analysis carried out detailed and The multi-level fuzzy comprehensive evaluation of mathematical methods to quantify the quantitative analysis of the basic South Second and Third Member Gaotai reservoir residual potential of small oil, mainly distributed in the outer surface of the reservoir and the distribution of large thin oil reservoir, the area Well network encryption adjustment has a positive guiding role.