摘要
影响王78-2井区注水开发效果的主要原因一是天然能量不足、注水滞后,加之初期注水强度过大,造成了直接影响;二是注采井网不完善或注采井网与地质特征不匹配。采用周期注水或脉冲注水是低渗透裂缝性油藏水开发中重要的调整方式。保持合理的注采比能改善低渗透裂缝性油藏的开发效果。
There are mainly two factors undermining the effects of water flooding development of Wang 78--2 well ar- ea. One is the direct impact from a lack of natural energy, lagging water flooding and overwhelming water injection intensity in early developing stage. And the other is flawed injection--production well pattern or a mismatch between well pattern and geologic features. Cyclic flooding or pulse water injection is the major adjusting method during the flooding development of fractured reservoirs with low permeability. Maintaining a right injection--production ratio can improve the development of these reservoirs.
出处
《江汉石油职工大学学报》
2013年第1期44-46,共3页
Journal of Jianghan Petroleum University of Staff and Workers
关键词
王78—2井区
低渗透
裂缝
油藏
注水开发
Wang 78-- 2 Well Area
Low Permeability
Fractures
Oil Reservoirs
Water Flooding Development
