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由于永乐油田永92-88井区采出程度高,油层水淹程度高,措施挖潜的余地越来越小,剩余油分布主要以注采不完善型和层间差异型为主,并且由于井区边部断层发育,断层附近是剩余油的主要聚集区域。根据该井区储层发育特点,以及现井网为反九点和线状注水井网的实际,为提高油层动用程度,2006年对该井区实施井网加密调整试验。分为2007年-2008年两年进行加密调整。两年共投产加密油井32口,注水井7口。本文针对这32口加密油井因构造位置、原井网影响,对其开发效果以及取得的认识进行了探讨。
Due to the high recovery of Yong-92-88 well in Yongle Oilfield and the high flooding of reservoir, the potential for potential tapping potential is getting smaller and smaller. The remaining oil distribution is mainly dominated by injection-production imperfection and inter-layer difference, The fault zone develops in the margin of the area, and the main oil accumulation area near the fault. According to the reservoir development characteristics of the well area and the fact that the existing well pattern is an anti-nine-point and linear water injection well pattern, in 2006, the well pattern was adjusted and adjusted in order to increase the utilization of oil layers. Divided into 2007 -2008 for two years to carry out encryption adjustment. Two years a total production of 32 encrypted wells, water wells 7. In this paper, the 32 wells for oil wells due to the location of the structure, the impact of the original well, the development of its effect and acquired understanding were discussed.