本文讨论了老油田应用水平井水驱技术提高原油采收率的效果。该技术涉及地质解释、岩石物性评价、油藏模拟研究和钻井技术等多门学科。结合该技术在各种油藏条件下的可行性,介绍了油田试验效果。评价应用水平井潜力的关键是对油藏描述的彻底了解,包括含油饱和度、沉积环境、油藏压力、渗透率和所有以前的注水/开采评价,相关其他参数包括目的区水平井段长度、井距,以及注水井和水平生产井的位置与方向。 This article discusses the effect of using horizontal well waterflooding technology to improve oil recovery in old oilfields. The technology involves many disciplines such as geological interpretation, petrophysical evaluation, reservoir simulation research and drilling technology. Combined with the feasibility of this technology in various reservoir conditions, the effect of oilfield test is introduced. The key to assessing the potential for horizontal well applications is a thorough understanding of the reservoir description including oil saturation, sedimentary environment, reservoir pressure, permeability and all previous waterflooding / extraction evaluations. Other relevant parameters include the length of the horizontal section of the target zone, Well spacing, and the location and orientation of injection wells and horizontal production wells.