[1]陈民锋,王兆琪,张琪琛,等.启动压力影响下注采井间有效驱替规律[J].深圳大学学报理工版,2017,34(1):91-97.[doi:10.3724/SP.J.1249.2017.01091]
　Chen Minfeng,Wang Zhaoqi,Zhang Qichen,et al.Effective displacement rules for interwell with threshold pressure[J].Journal of Shenzhen University Science and Engineering,2017,34(1):91-97.[doi:10.3724/SP.J.1249.2017.01091]
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启动压力影响下注采井间有效驱替规律()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第34卷
期数:
2017年第1期
页码:
91-97
栏目:
环境与能源
出版日期:
2017-01-09

文章信息/Info

Title:
Effective displacement rules for interwell with threshold pressure
文章编号:
201701012
作者:
陈民锋; 王兆琪; 张琪琛; 陈璐
国石油大学（北京）石油工程学院，北京 102249
Author(s):
Chen Minfeng;  Wang Zhaoqi;  Zhang Qichen;  and Chen Lu
College Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, P.R.China
关键词:
油田开发; 低渗透; 启动压力梯度; 渗流场; 有效驱替; 注采井距
Keywords:
oilfield development;  low permeability reservoirs;  threshold pressure gradient;  pressure and velocity field;  effective producing area;  injector producer distance
分类号:
TE 345
DOI:
10.3724/SP.J.1249.2017.01091
文献标志码:
A
摘要:
低渗透储层具有明显的启动压力梯度，导致注采井间的渗流场分布与常规条件存在一定差异．基于典型注采条件下的渗流特点和驱替过程分析，在产量方程中引入启动压力梯度，构建出考虑启动压力影响下一注一采定产渗流模型．通过推导得出注采井间压力场、速度场分布的数学表达式，并建立计算注采井间有效驱替面积、有效注采井距的方法，得到不同开发条件下井间渗流场分布和注采单元中有效驱替范围变化的规律．结合典型低渗透油藏参数进行的研究表明，根据有效驱替要求确定有效注采井距，并以此为基础部署开发井网，能在更大程度上有效驱动注采单元内的流体，进而提高低渗透油藏的开发效果．
Abstract:
Due to the existence of significant threshold pressure gradient, the flow in low permeability reservoirs is low-speed non-Darcy flow. Under these conditions, interwell flow filed has significant difference compared to the fields of conventional reservoirs. In view of the flow characteristics and displacement process analysis of a typical water flooding regime, threshold pressure gradient is introduced into the basic flow equation and combined with the condition that both production and injection wells are working in a constant rate. A mathematical model is established for one injector producer pair in infinite formation. According to the initial and boundary conditions, interwell pressure and velocity field distribution function are deduced from the model. Based on the mathematical description, interwell pressure and velocity field distribution and variation could be defined. The analysis shows that for the waterflood development of low permeability oilfield, only by taking effective flooding strategy, can the oil between the injection and production wells be effectively displaced to a greater extent and can the development effectiveness of low permeability reservoirs be improved.

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备注/Memo

备注/Memo:
Received：2016-03-28；Revised：2016-10-10；Accepted：2016-10-30
Foundation：National Basic Research Program of China (2015CB250905)
Corresponding author：Associate professor Chen Minfeng. E-mail: cmfllp96@126.com
Citation：Chen Minfeng, Wang Zhaoqi, Zhang Qichen, et al. Effective displacement rules for interwell with threshold pressure［J］. Journal of Shenzhen University Science and Engineering, 2017, 34(1): 91-97.（in Chinese）
基金项目：国家重点基础研究发展计划资助项目（2015CB250905）
作者简介：陈民锋（1971―），男，中国石油大学（北京）副教授、博士. 研究方向：油气田开发系统理论方法和提高采收率. E-mail：cmfllp96@126.com
引文：陈民锋，王兆琪，张琪琛，等. 启动压力影响下注采井间有效驱替规律［J］. 深圳大学学报理工版，2017，34(1)：91-97.
更新日期/Last Update: 2016-12-30