基于核磁共振的复杂断块油藏微观动用均衡程度实验

发布时间：2018-03-28 12:42

本文选题：断块油藏　切入点：微观动用均衡程度　出处：《断块油气田》2016年06期

【摘要】：目前胜利油田复杂断块油藏已进入高含水开发阶段,由于断块油藏特殊的地质构造特征,在不同构造部位的剩余油动用难度差异较大。为探究高含水期复杂断块油藏微观不均衡动用规律,利用三维胶结物理模型,结合核磁共振技术,研究断块油藏不同构造部位微观孔隙剩余油分布特征。结果表明:不同构造部位大中孔隙驱替程度高,动用程度差异较小,小孔隙中驱替程度较低且分布差异性大;在同一构造部位大、中、小孔隙的原油动用程度差别较大,顶部的差别最大,从微观孔隙的角度来看,顶部的动用不均衡程度最明显。从不同构造部位以及不同孔隙级别2个角度,综合评价断块油藏的开发潜力,为断块油藏剩余油的进一步挖潜提供方向。
[Abstract]:At present, the complex fault-block reservoir in Shengli Oilfield has entered the stage of high water-cut development. Due to the special geological structure characteristics of the fault-block reservoir, In order to explore the microcosmic disequilibrium production rule of complex fault-block reservoir in high water-cut period, the three-dimensional cementing physical model and nuclear magnetic resonance (NMR) technique are used. The distribution characteristics of micro pore residual oil in different structural parts of fault block reservoir are studied. The results show that the degree of pore displacement is high, the difference of production degree is small, the degree of displacement in small pore is lower and the distribution difference is great. At the same structural position, the crude oil production degree of the small pores is different from that of the small ones, and the difference at the top is the greatest. From the point of view of the microscopic pores, The development potential of fault-block reservoir is evaluated synthetically from two angles of different structural position and different pore level, which provides a direction for further tapping potential of remaining oil in fault-block reservoir.
【作者单位】：中国石油大学(北京)石油工程教育部重点实验室;
【基金】：国家重大科技专项专题“气驱辅助水驱机理及技术政策界限研究”(2016ZX05011002-002)
【分类号】：TE347

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