屏蔽暂堵技术中暂堵剂粒径的优化选择

Optimal Selection of Diverting Agent Grain Size in Shielding Diversion Technology

保护油层的屏蔽暂堵技术在现场上已广泛应用，但应用过程中由于暂堵剂粒径不合理等因素的影响，经常达不到预期效果。通过大量实验研究，得出了暂堵剂粒径与储层孔隙的最佳匹配原则，这为屏蔽暂堵技术的正确应用提供了科学依据，临南油田的现场实践证明该项实验研究具有较高的应用价值。

Through a series of flow experiments, the authors studied the diverting effects under seven different matching relations between diverting agent grain sizes and average pore diameter of reservoirs.Experimental results show that the optimal matching relation is 2: 3 ~1: 1. Field practice in Linnan Oilfield verifies the good application value of this experimental research.