| 恒速压汞技术定量评价低渗透砂岩孔喉结构差异性 |
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| 引用本文： | 高永利,张志国.恒速压汞技术定量评价低渗透砂岩孔喉结构差异性[J].地质科技情报,2011,30(4):73-76. |
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| 作者姓名： | 高永利 张志国 |
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| 作者单位： | 1. 西安石油大学石油工程学院,西安,710065
2. 长庆油田公司采油一处,甘肃合水,745400 |
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| 基金项目： | “十一五”国家科技支撑计划项目(2007BAB17B02) |
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| 摘 要： | 针对常规压汞不能准确确定储层孔隙与喉道的弊端,利用恒速压汞技术对鄂尔多斯盆地低渗透砂岩样品孔喉结构的差异性进行了定量评价.结果表明,渗透率越小的岩心,喉道分布越集中,随着渗透率的增大,大喉道分布逐渐增多,喉道分布范围也更加宽泛,主喉道半径随之增大,但较大喉道对低渗透砂岩储层的开采效果具有双重影响；渗透率小于0.5×10...
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| 关 键 词： | 恒速压汞 定量评价 低渗透砂岩 孔隙结构差异性 鄂尔多斯盆地 |
Valuation on Difference of Pore Throat Structure of Low Permeability Sandstone by Constsp Mercury Penetration Technique |
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| GAO Yong-li
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ZHANG Zhi-guo.Valuation on Difference of Pore Throat Structure of Low Permeability Sandstone by Constsp Mercury Penetration Technique[J].Geological Science and Technology Information,2011,30(4):73-76. |
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| Authors: | GAO Yong-li ZHANG Zhi-guo |
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| Institution: | GAO Yong-li1,ZHANG Zhi-guo2 |
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| Abstract: | In reference with the deficiency that the conventional mercury penetration method cannot determine accurately the pore and pore throat structure,constsp mercury penetration technique was used to quantitatively evaluate the pore structure difference in Ordos Basin.The study result shows that: the lower the core permeability is,the more concentrated the distribution of pore constriction is,and the larger pore constriction has dual effect on exploitation of low permeability of the sandy reservoir.With the risi... |
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| Keywords: | constsp mercury penetration quantitative evaluation low permeability sandstone difference of pore throat structure Ordos Basin |
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