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三维流线模拟方法是有限差分模拟技术的补充。流线模拟的主要优点是能够显示流体流动通道和计算注水量分配系数,它的应用可以改进水驱项目的作业和开发方案。用流线模拟方法优化井位和注水量研究了沙特阿拉伯的一个碳酸盐岩油藏的补充开发方案,该方案包括钻几口水平注水井/采油井。对流线模拟器的限制条件问题进行了讨论。研究结果显示,流线模拟方法在高度可压缩系统中的应用仍然处于发展阶段,它是以预测的方式跟踪油田/井组的目标产量和限制条件以及单井的目标产量。在本研究的优化阶段之前,成功地应用流线模拟器再现了油藏一次采油(在未注水情况下)的历史动态。从流线模拟中可以得到有价值的信息:注入水向对应采油井的分布情况;含水层的水损失情况;每口注水井相应的采出原油的百分数;与每口注水井有关的含水变化。用注水量与补偿采油量/采液量曲线得到了质量指标,以测定每口注水井的注水效率。从曲线上识别出注水动态相对较差的注水井,然后通过一系列模拟调整注水量的分配和注水井井位来提高注水效率。
The three-dimensional streamline simulation method complements the finite difference simulation technique. The main advantages of streamline simulations are the ability to display fluid flow paths and calculate the distribution coefficient of water flooding, and its application can improve the operation and development of water flooding projects. OPTIMIZING BOREHOLE AND WATER FILLING WITH FLOWLINE SIMULATION A supplementary development of a carbonate reservoir in Saudi Arabia was studied that included drilling several horizontal injection wells / production wells. The limitations of the convection line simulator are discussed. The results of the study show that the use of streamline simulation in a highly compressible system is still at an advanced stage of development and is predictive of the target production and constraints of the field / well group and the target production of a single well. Prior to the optimization phase of this study, the streamline simulator was successfully used to reproduce the historical evolution of primary recovery (in the absence of water injection). Valuable information can be obtained from streamline modeling: distribution of injected water to the corresponding production well; loss of water in the aquifer; percentage of crude oil produced corresponding to each injection well; changes in water content associated with each injection well . With the amount of water and compensation for oil production / volume curve obtained the quality indicators to determine the water injection efficiency of each injection well. Water injection wells with relatively poor water injection dynamics are identified from the curves and then water injection efficiency is enhanced by a series of simulations that adjust the allocation of water injection volumes and the injection well locations.