卫城油田卫11块影响剩余油分布的主要因素

针对卫城油田卫11块地质特点，从影响剩余油分布的因素分析入手，研究原始地质因素，包括构造、储层沉积的非均质性、流体性质等对剩余油分布的影响；研究人为因素，包括对构造的认识程度、开发过程中开发井网系统部署的合理性、注采平衡情况、压力平衡情况、后期调整井部署情况、采用的采油工艺技术适应性等对剩余油分布的影响。揭示了不同类型剩余油形成的原因，指出了剩余油空间展布规律，为调整挖潜剩余油提供了依据。

Major Factors Influencing the Distribution of Residual Oil in Block Wei 11 of Weicheng Oilfield

In consideration of geologic characteristics in Block Wei 11 of Weicheng Oilfield,original geologic factors,including the effects of structure,heterogeneity of reservoir sedimentation,and fluid properties on the distribution of residual oil,are studied by analyzing influence on the distribution of residual oil.Human-induced factors,including the effects of degree of structural understanding,rationality of arrangement of development well patterns in production process,balance of injection,production,pressure balance,arrangement of adjustment wells and the adaptability production techniques on residual oil distribution,are studied,the causes of different types of residual oil distributions are described,and the rules of space distribution of residual oil are pointed out,by which bases are provided for tapping the potential of residual oil.