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

可循环泡沫钻井完井液防地层污染数值模拟

张彬1,黄建喜2,曹佳艺3   

  1. 1. 中国石油华北油田公司采油工程研究院,河北任丘062552
    2. 中国石油渤海石油装备制造有限公司石油机械厂,河北任丘062552
    3. 天津里碑冷轧板材有限公司,天津河西300220
  • 出版日期:2013-10-20 发布日期:2013-10-20

Numerical Simulation of Preventing Formation Contamination About the
Circulating Foam Drilling and Completion Fluid

Zhang Bin1, Huang Jianxi2, Cao Jiayi3   

  1. 1. Petroleum Production Engineering Research Institute,CNPC Huabei Oilfield Company,Renqiu,Hebei 062552,China
    2. Petroleum Machinery Factory,CNPC Bohai Equipment Manufacturing Co.,Ltd,,Renqiu,Hebei 062552,China
    3. Tianjin Libei Cold Rolled Plate Tablet Co.,Ltd,Hexi,Tianjin 300220,China
  • Online:2013-10-20 Published:2013-10-20

摘要:

在现场施工中难以观察可循环泡沫钻井完井液的井下情况,为模拟其对地层的保护机理,建立了合理的地层
孔隙简化模型,对可循环泡沫钻井完井液在井下如何防止地层污染的流场规律进行数值模拟分析,模拟结果表明可循
环泡沫钻井完井液的气泡可以进入地层,有效地阻止了钻井液组分进入地层伤害储层,并随着孔隙尺寸不同而具有较
好的适应性。在现场试验中也证实了可循环泡沫钻井完井液能够很好地保护油气层、防止储层受损伤。

关键词: 可循环泡沫钻井完井液, 地层污染, 保护油气层, 机理, 数值模拟

Abstract:

It is difficult to observe the circulating foam drilling and completion fluid underground in actual production. In
order to simulate the hydrocarbon reservoir protection mechanism,a reasonable strata simplified model of pore is established
to analyze how to prevent formation contamination under the bottomhole circulating foam drilling and completion fluid with
the numerical simulation. Results show that the air bubble of circulating foam drilling and completion fluid can go into the
formation,and effectively prevent the drilling fluid from getting into the formation and damaging the reservoir. Furthermore,
by testing in the site,it is proved that the circulating foam drilling completion fluid can be used to protect the reservoir rock and
reduce the formation damage.

Key words: circulating foam drilling and completion fluid, formation contamination, reservoir protection, mechanism,
numerical simulation