锦91块为活跃的边底水稠油油藏,采用蒸汽吞吐降压开采方式,边水不断侵入,造成油层纵向动用不均、平面大面积油井水淹,机械堵水和化学堵水等措施效果变差,低产低效井持续增加。通过精细油藏地质研究,结合油井动态监测技术,对锦91东部于Ⅰ组重水淹区水淹规律进行研究,总结出剩余油分布特征,采用配套挖潜技术,取得了良好的应用效果。 Jin 91 is an active edge-water heavy oil reservoir. By means of steam huff and puff step-down mining, edge water continuously intrudes, resulting in uneven vertical utilization of oil layers, flooding of large-scale planar wells, mechanical and chemical water shut-off The effect becomes worse, the low-yielding and inefficient wells continue to increase. Based on the study of fine reservoir geology and the dynamic monitoring technology of oil well, the law of water flooding in the eastern part of Jin 91 in the heavy flooded area of ​​Group I is studied. The remaining oil distribution characteristics are summarized, and the matching tapping technology is used to obtain good application results.