西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (1): 130-140.DOI: 10.11885/j.issn.1674-5086.2016.09.20.01

• 石油与天然气工程 • 上一篇    下一篇

底水稠油油藏单井条件下隔夹层参数研究

黄世军1, 宋倩兰1, 程林松1, 杨阳2, 周中豪1   

  1. 1. 中国石油大学(北京)石油工程教育部重点实验室, 北京 昌平 102249;
    2. 中国石化石油勘探开发研究院, 北京 海淀 100083
  • 收稿日期:2016-09-20 出版日期:2018-02-01 发布日期:2018-02-01
  • 通讯作者: 黄世军,E-mail:huangshijun678@163.com
  • 作者简介:黄世军,1974年生,男,汉族,河南新郑人,副教授,博士,主要从事油气渗流机理与应用。E-mail:huangshijun678@163.com;宋倩兰,1991年生,女,汉族,湖南长沙人,硕士,主要从事稠油冷采、油藏工程和数值模拟方面的研究。E-mail:297212140@qq.com;程林松,1965年生,男,汉族,湖北孝感人,教授,博士生导师,主要从事油气田开发方面的研究。E-mail:lscheng@cup.edu.cn;杨阳,1991年生,男,汉族,浙江金华人,硕士,主要从事稠油热采技术、油藏工程和油藏数值模拟方面的研究。E-mail:421498967@qq.com;周中豪,1993年生,男,汉族,河北衡水人,硕士,主要从事稠油冷采,油藏工程和数值模拟方面的研究。E-mail:1552041921@qq.com

Study on Interlayer Parameters of Bottom Water Heavy Oil Reservoir Under Single-well Condition

HUANG Shijun1, SONG Qianlan1, CHENG Linsong1, YANG Yang2, ZHOU Zhonghao1   

  1. 1. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Changping Beijing 102249, China;
    2. Exploration & Production Research Institute, SINOPEC, Haidian, Beijing, 100083
  • Received:2016-09-20 Online:2018-02-01 Published:2018-02-01

摘要: 开发底水稠油油藏的主要问题在于底水的脊进,利用水平井开采可以有效地缓解这一开发矛盾。同时,隔夹层的存在能够大大减缓底水上升,提高采出程度,改善开发效果。讨论了单井条件下,隔夹层参数变化对开发效果的影响。影响开发效果的隔夹层因素较多,根据调研,并考虑到典型性和可行性,选取无因次隔夹层面积、无因次隔夹层垂向位置、隔夹层渗透率这3个参数进行隔夹层对开发效果影响的研究。基于渤海A油藏实际参数建立了含隔夹层的底水稠油油藏数值模型,通过油藏工程方法对采出程度曲线、含水上升曲线、流线模型场图和饱和度场图进行了分析,研究了单因素对开发效果的影响:无因次隔夹层面积越大,开发效果越好;隔夹层越靠近油水界面,开发效果越好;夹层渗透率较小时,开发效果优于隔层。在单因素影响分析的基础上,进行了正交实验,分析了多因素之间的影响,确定了3个参数的影响程度排序:由大到小依次为无因次隔夹层面积、无因次隔夹层垂向位置和隔夹层渗透率。

关键词: 底水, 稠油油藏, 水平井, 隔夹层参数, 正交分析实验

Abstract: The main problem during the production of bottom water heavy oil reservoirs is the imbibition of the bottom water. The use of horizontal wells can effectively alleviate this production contradiction. At the same time, the existence of the interlayer can greatly reduce the rise of the bottom water, improve the recovery extent, and improve the recovery efficacy. This paper discusses the effect of the change of interlayer parameters on the production under the condition of a single well. There are many interlayer factors affecting the recovery efficacy. According to research, and considering the typicality and feasibility, three parameters, including the interlayer dimensionless area, interlayer dimensionless vertical position, and interlayer permeability, were selected for the study of the effect of interlayer parameters on production efficacy. Based on the actual parameters of the Bohai A reservoir, the numerical model of the bottom water heavy oil reservoir with interlayer was established. The production curve, water saturation rising curve, streamline field model diagram, and saturation field diagram were analyzed by the reservoir engineering method. The effect of each single factor on the production was studied:a larger interlayer corresponded to better production. The closer the interlayer is to the oil-water interface, the better the production is. The production in the case of an interlayer with low permeability is better than that in the case of a barrier. Based on the single-factor influence analysis, the orthogonal experiment was carried out, and the influence due to multiple factors was analyzed. The influence degree of the three interlayer parameters was determined. In decreasing order of influence, the parameters are:interlayer dimensionless area, interlayer dimensionless vertical position, and interlayer permeability.

Key words: bottom water, heavy oil reservoir, horizontal well, interlayer parameters, orthogonal analysis experiments

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