Applying Fast-Field Cycling Nuclear Magnetic Relaxation to Petroleum Tight Sandstone Rocks
Applying Fast-Field Cycling Nuclear Magnetic Relaxation to Petroleum Tight Sandstone Rocks
复制标题
将快场循环核磁弛豫应用于致密砂岩岩石
DOI：
10.1021/acs.energyfuels.8b04023
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发表时间：
2019-01
期刊：
影响因子：
5.3
通讯作者：
Bing Zhou
中科院分区：
文献类型：
--
作者：
Bing Zhou
快速场循环核磁弛豫技术（NMRD）提供了在时间和距离的多个尺度上表征复杂液体在散装或密闭环境中的分子动力学和输运特性的机会。因此，NMRD可以表征多孔材料中受限液体的基本性质，如表面相关时间、扩散系数和动态表面亲和性（NMR润湿性）。本文介绍了NMRD在含油气致密砂岩中的应用，为研究孔隙尺寸分布（PSD）和孔隙内盐水的表面润湿性提供了新的信息。致密砂岩中的双峰PSD扩展到更小的孔隙中，而常规砂岩的准单峰PSD则以几十μm的大孔隙为中心。致密砂岩NMRD剖面的解释表明，水面扩散约占体扩散的三分之一。我们首次证明了致密砂岩中孔隙尺寸对水润湿性的依赖性，这使得FFC - NMRD技术能够在一天的实验中探测这些重要的非常规砂岩储层岩石的分子动力学和润湿性。基于这些有希望的结果，我们相信NMRD实验将成为研究非常规油气藏分子动力学和润湿性的重要工具。
The fast-field cycling nuclear magnetic relaxation technique (NMRD) offers opportunities on multiple scales of both time and distance for characterizing the molecular dynamics and transport properties of complex liquids in bulk or in confined environments. Therefore, NMRD can characterize fundamental properties such as surface correlation times, diffusion coefficients, and dynamical surface affinity (NMR wettability) for confined liquids in porous materials. This paper presents the applications of NMRD to petroleum tight sandstone rocks for giving new information on pore-size distribution (PSD) and the surface wettability of brine confined within pores. The bimodal PSD in tight sandstones is extended to much smaller pores compared with the quasi monomodal PSD of conventional sandstones that is known to be centered on very large pores of several tens of μm. The interpretation of the NMRD profiles of tight sandstones has shown a water surface diffusion about onethird of the bulk diffusion. We evidenced for the first time a pore-size dependence of the water wettability in tight sandstones that qualifies the FFC−NMRD technique for probing (in a single day experiment) the molecular dynamics and wettability of these important unconventional sandstone reservoir rocks. On the basis of the promising results obtained, we believe that NMRD experiments will be a critical tool for investigating in situ the molecular dynamics and wettability of petroleum unconventional reservoirs..
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影响因子：
2.8
作者：
P. Conte;C. Di Stefano;V. Ferro;V. Laudicina;E. Palazzolo
通讯作者：
P. Conte;C. Di Stefano;V. Ferro;V. Laudicina;E. Palazzolo
影响因子：
5.2
作者：
J. Korb;J. Korb;B. Nicot;I. Jolivet
通讯作者：
J. Korb;J. Korb;B. Nicot;I. Jolivet
DOI：
10.1103/physreve.60.3097
发表时间：
1999-09
期刊：
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子：
--
作者：
J. Korb;M. W. Hodges;T. Gobron;R. Bryant
通讯作者：
J. Korb;M. W. Hodges;T. Gobron;R. Bryant
影响因子：
2.4
作者：
Korb, J. -P.;Freiman, G.;Ligneul, P.
通讯作者：
Ligneul, P.
影响因子：
3.7
作者：
Korb, Jean-Pierre;Vorapalawut, Nopparat;Bryant, Robert G.
通讯作者：
Bryant, Robert G.