王场油田中高渗油藏水驱开发调整实践与认识

Practice and Understanding of Water Flooding Development Adjustment in Middle-high Permeability Reservoirs in Wangchang Oilfield

王场油田中区潜41、潜42油组受储层非均质性及井下复杂情况和套管损坏的影响,水驱开发效果变差。基于剩余油认识不精确、生产井损坏严重等问题,运用精细构造解释与储层对比相结合的技术手段,研究油藏构造特征及平面剩余油主控因素,明确剩余油富集潜力区,分层分区制定调整对策,获得较好的挖潜效果。

Affected by reservoir heterogeneity,downhole complexity and casing damage,the water-drive development effect becomes worse in Qian41 and Qian42 oil group in central area of Wangchang Oilfield.Aiming at the problems of inaccurate residual oil recognition and serious damage of production wells,this paper studies the structural characteristics of the reservoir and the main control factors of the remaining oil in the plane by means of the combination of fine structural interpretation and reservoir contrast,clarifies the potential areas of remaining oil enrichment and formulates adjustment strategies for the stratified zones,so as to obtain a better potential exploration effect.