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1.发明申请ESTIMATION OF PETROPHYSICAL AND FLUID PROPERTIES USING INTEGRAL TRANSFORMS IN NUCLEAR MAGNETIC RESONANCE 审中-公开使用核磁共振中的整体变换估算物理和流体特性公开(公告)号：US20130060474A1
公开(公告)日：2013-03-07
申请号：US13333232
申请日：2011-12-21
摘要： Apparatus and method of characterizing a subterranean formation including observing a formation using nuclear magnetic resonance measurements, calculating an answer product by computing an integral transform on the indications in measurement-domain, and using answer products to estimate a property of the formation. Apparatus and a method for characterizing a subteranean formation including collecting NMR data of a formation, calculating an answer product comprising the data, wherein the calculating comprises a formula K ( x ) ≡ ∫ 0 ∞ k ( t ) - t / x t . and estimating a property of the formation using the answer product.
摘要翻译： 表征地下地层的装置和方法，包括使用核磁共振测量观察地层，通过对测量域中的指示计算积分变换来计算答案产品，以及使用答案产品来估计地层的性质。 用于表征子囊体形成的装置和方法，包括收集地层的NMR数据，计算包括数据的答案产物，其中所述计算包括公式K（x）≡∫0∞k（t） / x笔记t。 并使用答案产品估计地层的属性。
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公开(公告)号：US20130179083A1
公开(公告)日：2013-07-11
申请号：US13346468
申请日：2012-01-09
申请人： FRED K. GRUBER , LALITHA VENKATARAMANAN , TAREK M. HABASHY , PHILIP M. SINGER , DENISE E. FREED
发明人： FRED K. GRUBER , LALITHA VENKATARAMANAN , TAREK M. HABASHY , PHILIP M. SINGER , DENISE E. FREED
CPC分类号： G01N24/081 , G01R33/448
摘要： A nuclear magnetic resonance (NMR) related distribution is estimated that is consistent with NMR measurements and uses linear functionals directly estimated from the measurement indications by integral transforms as constraints in a cost function. The cost function includes indications of the measurement data, Laplace transform elements and the constraints, and a distribution estimation is made by minimizing the cost function. The distribution estimation may be used to find parameters of the sample. Where the sample is a rock or a formation, the parameters may include parameters such as rock permeability and/or hydrocarbon viscosity, bound and free fluid volumes, among others. The parameters may be used in models, equations, or otherwise to act on the sample, such as in recovering hydrocarbons from the formation.
摘要翻译： 估计核磁共振（NMR）相关分布与NMR测量一致，并且使用通过积分变换作为成本函数中的约束从测量指示直接估计的线性函数。 成本函数包括测量数据，拉普拉斯变换元素和约束的指示，并且通过最小化成本函数来进行分布估计。 分布估计可用于查找样本的参数。 在样品是岩石或地层的情况下，参数可以包括诸如岩石渗透性和/或烃粘度，结合和游离流体体积等参数。 这些参数可以用于模型，方程式或其他方式作用于样品，例如从地层回收碳氢化合物。
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公开(公告)号：US20130187648A1
公开(公告)日：2013-07-25
申请号：US13357378
申请日：2012-01-24
IPC分类号： G01V3/175
CPC分类号： G01V3/32 , G01N24/081 , G01R33/448
摘要： Estimating and displaying information about the size of molecules within a substance from nuclear magnetic resonance (NMR) maps and/or logs. Methods include utilizing a relationship between the molecular size (e.g., mean chain length), and either a moment of diffusion or a relaxation distribution, to create a scale on a two-dimensional map. In one case, applying the relationship between the molecular size, and either a moment of diffusion or a relaxation distribution, to one-dimensional diffusion or relaxation distributions for the purpose of estimating the mean chain length of molecules within the substance. In another case, a method includes determining mean chain lengths of molecules within a substance and providing a one-dimensional NMR log showing the mean chain lengths at a plurality of depths. In some cases, the NMR log includes actuatable regions for examining two-dimensional NMR maps or chain length distributions of the substance corresponding with distinct depths of the substance.
摘要翻译： 从核磁共振（NMR）图和/或记录中估计和显示有关物质中分子大小的信息。 方法包括利用分子大小（例如，平均链长度）与扩散时刻或松弛分布之间的关系，以在二维图上产生刻度。 在一种情况下，为了估计物质内的分子的平均链长度，将分子大小，或者是扩散时刻或松弛分布之间的关系应用于一维扩散或松弛分布。 在另一种情况下，一种方法包括测定物质内分子的平均链长度，并提供一维NMR记录，显示多个深度处的平均链长度。 在某些情况下，NMR对数包括用于检查对应于物质的不同深度的物质的二维NMR图或链长分布的可致动区域。
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