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

B239 超前注水建立有效驱替压力系统研究*

胡书勇1,李亮1,伍睿2,王玉洁3,李磊1   

  1. 1.“油气藏地质及开发工程”国家重点实验室·西南石油大学,四川成都610500
    2. 德阳广汉高新技术产业园区管理委员会,四川德阳618300
    3. 山东科瑞控股集团有限公司,山东东营257067
  • 出版日期:2014-12-01 发布日期:2014-12-01
  • 基金资助:

    教育部博士点基金(20105121110006)。

Researches on Building Effective Displacement Pressure System of
Advanced Water Injection in B239 Well-Block Reservoir

Hu Shuyong1, Li Liang1, Wu Rui2, Wang Yujie3, Li Lei1   

  1. 1. State Key Lab of Oil & Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. High-Tech Industrial Park Management Committee of Guanghan,Deyang,Sichuan 618300,China
    3. Shandong Kerui Holding Group Corporation Limited,Dongying,Shandong 257067,China
  • Online:2014-12-01 Published:2014-12-01

摘要:

B239 井区长6 超低渗透油藏试验区块实施超前注水开发,开发效果未达到预定方案指标,为此开展了超前注
水改善开发效果有效性的研究。主要在加密调整井网的基础上,采用油藏工程与数值模拟相结合的方法,设计了相应
的研究方案。研究结果表明:对井距达到有效作用距离的井网系统超前注水才更为有效。如果井距过大,即使采用超
前注水也不能充分发挥作用或者作用甚微,只能在井底形成局部高压,不能形成有效驱替,注入水不能有效向油井推
进。该项研究对同类低渗、特低渗油田超前注水开发提供了理论依据和技术支撑,对于该类油田开发具有重要的指导
意义。

关键词: 超低渗透油藏, 超前注水, 数值模拟, 有效驱替

Abstract:

The Chang 6 ultra-low permeability reservoirs test block of well-block B239 is developed with advanced water injection.
However,the development effect has not reached expectations as planned. For this reason,we carryied out the research
on the effectiveness of advanced water injection on improving development results. Based on the pattern of the infill wells
adjustment,we designed the research plan by combining reservoir engineering and numerical simulation method. Researches
show that the advanced water injection is more effective if the well spacing of the well network system reaches the effective
distance. If the well spacing is too wide,advanced water injection cannot work or the effect is little. In that case high pressure
will only appear at the bottom hole,without effective displacement. This study provides theoretical basis and technical support
to advanced water injection development in other low permeability and ultra-low permeability oilfields,which has an important
guiding significance for the exploitation of such oilfields.

Key words: ultra-low permeability reservoirs, advanced water injection, numerical simulation, effective displacement