坪北特低渗透油藏堵塞机理及复合解堵技术研究  

PLUGGING MECHANISM AND COMPOUND PLUGGING REMOVAL FOR ULTRA-LOW PERMEABILITY RESERVOIR OF PINGBEI OILFIELD

作　　者：程滢[1] 唐芳[2] 廖如刚[2] 

机构地区：[1]中国石油化工集团公司江汉石油管理局科技处 [2]中国石油化工集团公司江汉石油管理局采油院

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

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.

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 

分 类 号：TE358[石油与天然气工程—油气田开发工程]