| 恒速压汞实验的低渗透储层孔隙结构特征研究 |
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| 引用本文： | 徐赢,潘有军,张中劲,吴美娥,谢军,文静,刘长地.恒速压汞实验的低渗透储层孔隙结构特征研究[J].吐哈油气,2011(3). |
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| 作者姓名： | 徐赢 潘有军 张中劲 吴美娥 谢军 文静 刘长地 |
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| 作者单位： | 中国石油吐哈油田公司勘探开发研究院; |
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| 摘 要： | 利用恒速压汞技术,对牛圈湖油田西山窑组低渗透油藏孔隙结构和渗流特征进行研究。恒速压汞实验通过检测汞注入过程中,压力涨落不仅能够得出喉道和孔隙各自的发育情况,而且能够给出喉道和孔隙的大小及其分布特征。实验表明喉道是控制低渗透、特低渗透油藏储层性质的决定因素。储层主流喉道分布的微观非均质差异是渗流能力非均匀性的重要原因。通过与同类型油田对比得出,相同渗透率级别的岩心,牛圈湖西山窑组油藏喉道半径往往比大多油田小,这就决定了牛圈湖油田开发难度大的原因之一。
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| 关 键 词： | 牛圈湖油田 低渗透 恒速压汞 孔喉特征 分析对比 |
Study on Pore Structure Characteristics of Low Permeability Reservoir Based on Constant Velocity Mercury Penetration Experiment |
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| Abstract: | During constant velocity mercury penetration experiment, through detection of pressure fluctuations during mercury injection, not only the developed situation of the pore and throat is showed respectively, but the size and distri-bution of them are given. The experiment shows that the throat is the determinative factor to control the low permeability and ultra-low permeability reservoir properties. The difference in micro-heterogeneous of mainstream throat distribution of reservoir is a main reason caused t... |
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| Keywords: | Niuquanhu oilfield low permeability constant velocity mercury penetration pore throat feature analysis and comparison |
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