首页> 外文会议>Society of Core Analysts Symposium >THE HB BOUNDARY CONDITION IN CENTRIFUGE PC EXPERIMENTS. (OR WHY THERE IS NO EXPERIMENTAL EVIDENCE THAT THE PRESSURE FIELD MODEL EVER FAILED)
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THE HB BOUNDARY CONDITION IN CENTRIFUGE PC EXPERIMENTS. (OR WHY THERE IS NO EXPERIMENTAL EVIDENCE THAT THE PRESSURE FIELD MODEL EVER FAILED)

机译:离心机PC实验中的H&B边界条件。 (或为什么没有实验证据表明压力场模型失败了)

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Since Hassler and Brunner developed the measurement of Capillary Pressures by centrifuging, it has been exposed to critical concerns. Several authors proposed “experimental” evidences for its failure either by showing desaturation at the core bottom face during centrifuging, or by showing that the current procedure provides results different that those related to “improved” processes. Herein, one revisits assumptions on the pressure field in centrifuge experiments. It is shown that desaturations reported in the literature are consistent with these assumptions. One explains why some authors reported desaturation to occur at normal centrifugal speeds, while others expected it only at unusual speeds, based on thermodynamics or physics at the pore scale. Differences observed when various ways are used for determining the capillary pressure curve are explained too. The so-called “evidences for the failure of the current centrifuge technique” are the results of interpretation problems. No clear evidence of a failure has been found.
机译:由于哈斯勒和布伦纳通过离心开发了毛细管压力的测量,因此它已经暴露于关键问题。通过在离心过程中显示核心底面的去饱和,或者通过表明当前程序提供与“改进”过程相关的结果不同的结果不同,提出了“实验”证据。这里,一个重新释放离心实验中的压力场上的假设。结果表明,文献中报告的去污染与这些假设一致。有人解释了为什么一些作者报告了在正常的离心速度下发生的去饱和度,而其他作者则基于孔隙率的热力学或物理学,仅在不寻常的速度下预期。还解释了各种方式用于确定毛细管压力曲线时观察到的差异。所谓的“目前离心技术失败的证据”是解释问题的结果。没有发现失败的明确证据。

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