白云岩油藏低渗透条带对剩余油分布的影响
发布时间：2018-01-14 22:26
本文关键词：白云岩油藏低渗透条带对剩余油分布的影响 出处：《西南石油大学学报(自然科学版)》2017年05期 论文类型：期刊论文
更多相关文章： 低渗透条带 碳酸盐岩油藏 渗流阻挡 数值模拟 剩余油分布
【摘要】：YM白云岩油藏已进入高含水开采期,如何寻找剩余油并进行挖潜是目前面临的重要问题。该类型储层中普遍存在低渗透条带,建立机理模型,通过对低渗透条带的渗透率、厚度、产状及与储层渗透率的组合关系进行敏感性分析,研究结果表明,渗流阻挡作用的强弱主要与其渗透率大小有关,当渗透率小于0.01 mD时,能够起到较好的渗流阻挡作用;同等条件下,厚度越大,渗流阻挡作用越强;根据分布形态与样式不同,对剩余油的控制程度Ⅰ类Ⅱ类Ⅲ类Ⅳ类;若有两条交错的低渗透条带,则对剩余油的控制程度Ⅴ类Ⅵ类。低渗透条带在一定生产时间内可以形成渗流屏障,成为控制剩余油分布的重要因素。
[Abstract]:YM dolomite reservoir has entered the high water cut stage, how to find the remaining oil potential and is currently facing a major problem. Low permeability zone of this type of reservoir, establish the mechanism model, based on the low permeability, thickness, occurrence, and reservoir permeability rate of the combined relationship the sensitivity analysis results show that the strength of the main seepage blocking effect and its permeability is related to the size, when the permeability is less than 0.01 mD, can play a better role of seepage barrier; under the same conditions, the greater the thickness, the stronger the effect of seepage barrier; according to the distribution of different form and style, the remaining oil control degree of class II class III IV; if there are two staggered low permeability zone, the residual oil control degree V vi. Low permeability zone in a certain production time can be formed within the flow barrier, as control of residual oil distribution system Important factors.
【作者单位】： 中国石油杭州地质研究院;中国石油天然气集团公司碳酸盐岩储层重点实验室;中国石油塔里木油田公司勘探开发研究院;
【基金】：国家科技重大专项(2016ZX05004-002) 中国石油天然气股份有限公司重大科技专项(2014E-32-02)
【分类号】：TE327
【正文快照】： 引言目前M内外学者对d氏煊筒亓魈辶鞫媛傻牡刂使趟胤矫娴难芯可婕案艏，
本文编号：1425593
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