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| 摘要: |
| 对三种聚合物配制的CDG体系进行粘度和转变压力测定,发现三种CDG体系在配制15天后均能达到100mPa.s或以上粘度及0.05MPa以上的转变压力;在短岩心动态实验中,CDG体系的阻力系数和残余阻力系数都上升较高,说明了CDG体系可以有效的成胶并具有较长的凝结时间,达到需要的注入剂量和凝胶强度,满足实验要求。采用优选的配方2号HPAM,相对分子质量1300万,清水浓度500mg/L,聚铝比30∶1,进行有、无隔层的非均质油藏深度调剖驱油实验,表明逐步增大封堵深度可以进一步提高油层采收率。 |
| 关键词: CDG 转变压力 非均质油藏 深度调剖 |
| DOI： |
| 分类号:TE357.46 TS202.3 |
| 基金项目: |
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| The Performance of CDG System in Deep Profile Controlling |
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Li Yiqiang Ji Bingyu Li Jingyan et al
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| Abstract: |
| The viscosity and transmission pressure of CDG systems were measured to 100 mPa. s and 0.05MPa after 15 days, and the resistance coefficient and the residual resistance coefficient had ascended sharply during the water flooding experiments in short - size |
| Key words: CDG, transmission pressure, heterogeneous reservoir, deep profile controlling |
