DWL技术在海上底水稠油油藏中的研究

The Application of DWL Technology in Heavy Oil Reservoirs with Bottom Water

底水锥进严重影响底水稠油油藏开发效果。双层完井排液压锥(DWL)技术能够有效控制底水锥进。笔者在该技术的理论假设基础上引入达西定律,推导出了合理油井产量和排水量。应用CMG数模软件对其机理模型进行分析,结果表明DWL技术具有显著的稳油控水能力。该研究对海上底水稠油油藏的高效开发具有一定的参考价值。

Bottom water coning seriously affected the development effect of bottom water heavy oil reser-voir. DWL (Double-layer Completion Discharge Hydraulic Coning Technology) could effectively control of bottom water coning. On the basis of the theoretical assumptions of this technique, Darcy’s law was introduced, rational oil well yield and drainage rate were derived. At the same time, CMG numerical simulation software was used for analyzing its mechanism model. The re-sults show that dual completion technology has obvious row of stabilizing oil production and controlling water capacity. The study provides reference value for high-efficiency development of offshore heavy oil reservoirs with bottom water.