摘要
坪北油田为典型的特低渗透油藏,主要属于小孔细喉道,油层温度低,开采过程中容易形成有机质及无机垢堵塞,影响油井正常生产。在分析了油井堵塞机理的基础上,评选了有机解堵剂YCB-5A、无机质解堵剂YHG-5B,同时开展了复合解堵工艺技术研究,现场应用取得了较好的解堵增产效果。
As a typical ultra-low permeability reservoir,Pingbei Oilfield is characterized by small pore and fine throat,lower temperature of oil layer,plugging from organic and inorganic matters during production.In this study,on the basis of analysis on plugging mechanism,the organic plugging remover YCB-5A and inorganic remover YHG-5B have been chosen.Meanwhile,the research of compound plugging removal technology is carried on.And a good stimulation effect is obtained.
出处
《天然气勘探与开发》
2010年第3期41-44,共4页
Natural Gas Exploration and Development
关键词
坪北油田
低渗透油藏
油井堵塞
解堵剂
复合解堵工艺
Pingbei Oilfield
low-permeability reservoir
oil well plugging
plugging remover
compound plugging removal technology
