利用动态数据判断优势渗流通道

Distinguishing Preferential Seepage Channel By Using Dynamic Data

目前我国大部分油田经历了数十年的生产,现已进入高含水开发阶段,该阶段优势渗流通道普遍存在,导致油田的开发投资、成本增加,经济、社会效益大大降低。优势渗流通道的识别是减小其对油田开发不利影响的关键,是调堵改造技术应用的前提和基础。因此,对于优势渗流通道的快速准确识别的研究是十分必要的。通过对优势渗流通道与油田动态数据之间的相关性进行研究,提出了一套全新的判别砂岩油藏水驱优势渗流通道的思路方法,运用通信信号模型通过动态生产数据快速、准确地判别优势渗流通道。将该方法应用于中原油田某区块,预测结果与数值模拟结果基本相符。该方法与传统识别优势渗流通道的方法相比,方便快捷,简单有效,具有较好的现场应用价值。

Nowadays,the most of domestic oilfields have entered into a high water-cut stage after decades of production.The preferential seepage channel has widely existed,by which development investment and cost would be raised and economy and social benefits would be reduced.The identification of seepage channel was the key for reducing the unfavorable effect of oilfield development and it was the premise and basis for the application of plugging control technology.Therefore,it was essential for quick and accurate identification of the preferential seepage channel.A new idea and method were proposed to distinguish the preferential seepage channel in sandstone reservoirs by studying the correlation between the preferential seepage channel and dynamic data of the oilfield and the model of telecommunication simulation signals was used for quick and accurate distinguishing the dynamic data of the preferential seepage channel.This method is applied in a block of Zhongyuan Oilfield,the predicting result is consistent with that of simulation.This method is more convenient,simple,effective compared with the traditional methods,it is valuable for field application.