西南石油大学学报(自然科学版)

• 石油与天然气工程 • 上一篇    下一篇

考虑启动压力的层状油藏开发指标计算方法

冯其红1 *,王守磊2,韩晓冬3,白军伟4   

  1. 1. 中国石油大学(华东)石油工程学院,山东青岛266555
    2. 中海油研究总院,北京朝阳100028
    3. 中海石油(中国)有限公司天津分公司,天津塘沽300452
    4. 中国石化胜利油田分公司胜利采油厂,山东东营257051
  • 出版日期:2015-04-01 发布日期:2015-04-01
  • 通讯作者: 冯其红,E-mail:fengqihong@126.com
  • 基金资助:

    国家科技重大专项(2011ZX05024 – 002 – 002);长江学者和创新团队发展计划(IRT1294)。

Calculation Method of Development Indexes for Multilayered Reservoir
with Starting Pressure Included

Feng Qihong1*, Wang Shoulei2, Han Xiaodong3, Bai Junwei4   

  1. 1. School of Petroleum Engineering,China University of Petroleum,Qingdao,Shandong 266555,China
    2. CNOOC Research Institute,Chaoyang,Beijing 100028,China
    3. Tianjin Branch Company,CNOOC,Tanggu,Tianjin 300452,China
    4. Shengli Branch Company,SINOPEC,Dongying,Shandong 257051,China
  • Online:2015-04-01 Published:2015-04-01

摘要:

目前大多数开发指标预测方法适用于中高渗油田,并没有考虑启动压力的影响。在多层非活塞式水驱油藏模
型的基础上,考虑启动压力的影响,推导出了一套定液量生产时的开发指标计算方法。该方法可以反映多层合采时不
同渗透率层的有效生产压差不同;低渗层因启动压力大,供液能力低甚至不供液的问题。通过油田实例进行了验证,
结果表明:多层合采时,由于油水渗流阻力的变化,随着生产的进行,生产压差逐渐减小,高渗透层的产液比例越来越
大,层间干扰加剧。该方法准确反映了实际油藏的生产特征,可以用于提液等措施的效果预测。

关键词: 多层油藏, 开发指标, 启动压力, 累积注入体积倍数, 层间干扰

Abstract:

Now,many of the prediction methods of development indexes are suitable for the middle-high permeability oilfield,
which does not consider the effect of the starting pressure. In this paper,based on the model of the multilayered non-piston
water flooding reservoirs,and considering the impact of the starting pressure,he calculating method of the development indexes
in the constant flowrate production was derived. During commingling production,each layer of different permeability has
different production pressure drop and low permeability layer shows bad fluid supply capacity due to the effect of starting pressure.
A set of predicting method for constant flowrate production which can reflect the objective reality have been derived and
verified with field examples. Results show that,due to the change of water and oil seepage resistance in commingling production,
the production pressure drop decrease gradually,and the fluid production ratio of high permeability layer is increasingly
greater,which intensifies interlayer interference. This method reflects accurately the characteristics of reservoir production.
The feasibility of the method is confirmed theoretically and practically.

Key words: multilayered reservoirs, development index, starting pressure, accumulative injection pore volume factor, interlayer
interference