薄互层层间干扰三维物理模拟实验研究

发布时间：2018-06-13 03:11

本文选题：薄互层 + 层间干扰　；参考：《实验室研究与探索》2017年01期

【摘要】：为了深化对薄互层层间干扰规律的认识,明晰非均质性对水驱油效果的影响,用恒速法对人造三维胶结物理模型进行水驱油试验,研究了层间严重非均质条件下各类储层的水驱条件及效果。实验结果表明:在合注的情况下,高渗模型在进水量、速度、动用程度都明显大于低渗模型,渗透率级差较小的两个高渗模型相互干扰,且受重力影响注入水沿底部推进明显,关闭高渗模型可有效改善低渗模型的水驱效果,因此应尽量控制渗透率级差,合理组合层系和控制压差以提高采油效果。三维物理模拟实验结果实用性强,更符合油田实际,所得规律认识对于相似油田的实际矿场生产应用具有一定的指导意义。
[Abstract]:In order to deepen the understanding of the law of interference between thin and interbedded layers and clarify the influence of heterogeneity on the effect of water flooding, a water drive experiment was carried out on a three dimensional cemented physical model with constant velocity method. The water drive conditions and effects of various reservoirs under severe interlayer heterogeneity are studied. The experimental results show that, in the case of combined injection, the water intake, velocity and production degree of the hypertonic model are obviously larger than those of the low-permeability model, the two hypertonic models with small permeability difference interfere with each other, and the injected water is obviously pushed forward along the bottom by the influence of gravity. Closing the high permeability model can effectively improve the water drive effect of the low permeability model. Therefore, the permeability differential should be controlled as far as possible, the layer system should be reasonably combined and the pressure difference should be controlled in order to improve the oil recovery efficiency. The experimental results of three-dimensional physical simulation are practical and more in line with the oil field practice, and the understanding of the obtained laws is of certain guiding significance for the practical production and application of similar oilfields.
【作者单位】：中国石化胜利油田分公司勘探开发研究院;
【基金】：国家科技重大专项“胜利油田特高含水期提高采收率技术”(2011ZX05011-003)
【分类号】：TE357.6

【相似文献】