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当前,随着石油勘探开发技术的发展,低渗透油藏已在我国油田开发中占据很大比例。但由于低渗透油藏储层渗透率低且具有较强的压敏效应,使得这类油藏的单井产量较低。针对低渗透油藏的这些特点,我国学者提出超前注水方法。目前长庆、新疆、吉林,大庆等油田都已开展了低渗透油藏超前注水的矿场试验,取得了很好的效果,也在超前注水技术提高采收率机理及注水参数确定方面形成了一些初步的认识。当前针对超前注水参数确定方法以及各区块应用效果评价的文章较多,本文通过文献调研,对当前已有超前注水技术参数确定方法进行总结。
At present, with the development of petroleum exploration and development technology, low permeability reservoirs have occupied a large proportion in the development of China’s oilfields. However, due to the low permeability and low pressure permeability of reservoirs in low permeability reservoirs, the productivity of single wells in these reservoirs is relatively low. According to these characteristics of low permeability reservoirs, Chinese scholars proposed advanced water injection method. At present, Changqing, Xinjiang, Jilin, Daqing and other oilfields have carried out pilot tests of low-permeability reservoirs with advanced water injection and achieved good results. They have also formed the mechanism of advanced oil recovery technologies and the determination of water injection parameters Some preliminary understanding. At present, there are many articles about how to determine the advanced waterflooding parameters and how to evaluate the application effect of each block. This article summarizes the methods to determine the current advanced waterflooding technical parameters through literature research.