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公开(公告)号：US06255818B1
公开(公告)日：2001-07-03
申请号：US09368341
申请日：1999-08-04
IPC分类号： G01V300
CPC分类号： G01R33/563
摘要： A magnetic resonance measurement apparatus that is subject to relative motion between the apparatus and a specimen along a path includes a magnet, antennae and a circuit. The magnet polarizes the specimen, and the antennae are spatially distributed along the path. The circuit uses the antennae to perform magnetic resonance measurements and use the spatial distribution of the antennae to establish different polarization times for the magnetic resonance measurements.
摘要翻译： 在该装置和沿路径的试样之间进行相对运动的磁共振测量装置包括磁体，天线和电路。 磁体使样本极化，并且天线沿着路径空间分布。 该电路使用天线进行磁共振测量，并使用天线的空间分布为磁共振测量建立不同的极化时间。
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2.发明授权Estimating permeability without determinating a distribution of relaxation times 有权估计渗透率而不确定松弛时间的分布公开(公告)号：US06559639B2
公开(公告)日：2003-05-06
申请号：US09397581
申请日：1999-09-16
IPC分类号： G01V300
CPC分类号： G01N24/081 , G01R33/4625 , G01V3/32
摘要： A permeability estimation technique for use with spin echo signals that are received from a sample includes summing indications of the amplitudes of the spin echo signals. The results of the summing are used to determine an indication of a permeability of the sample, without using a distribution of relaxation times in the determination. The products of indications of the amplitudes of the spin echo signals may be summed, and the results of the summing may be used to determine an indication of a permeability of the sample, without using a distribution of relaxation times in the determination.
摘要翻译： 与从样本接收的自旋回波信号一起使用的磁导率估计技术包括自旋回波信号幅度的相加指示。 求和的结果用于确定样品的渗透性的指示，而不使用在测定中松弛时间的分布。 可以将自旋回波信号的振幅的指示的乘积相加，并且求和的结果可以用于确定样品的渗透性的指示，而不使用确定中的松弛时间的分布。
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公开(公告)号：US20130106413A1
公开(公告)日：2013-05-02
申请号：US13287877
申请日：2011-11-02
申请人： Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
发明人： Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
IPC分类号： G01V3/32
CPC分类号： E21B47/082
摘要： A method and system for determining a geometry of a borehole includes forming an nuclear magnetic resonance (NMR) caliper with a plurality of coils and coupling the NMR caliper to a borehole assembly. The NMR caliper may be calibrated for porosity and the T2 of the drilling mud, prior to drilling, at the surface. After drilling commences, scans of the borehole may be conducted with each coil of the NMR caliper. Each scan may include propagating RF energy across a range of frequencies with each coil in order to excite a NMR signal at varying depths. Borehole wall distances from the NMR caliper may be determined by reviewing a plurality of T2 distributions from CPMG measurements derived from the scans. In some embodiments, borehole wall distances from the NMR caliper may be determined by reviewing porosity values derived from the scans.
摘要翻译： 用于确定钻孔几何形状的方法和系统包括用多个线圈形成核磁共振（NMR）卡尺并将NMR卡尺耦合到钻孔组件。 可以在钻井前在表面校准NMR厚度测量孔隙度和钻井泥浆的T2。 钻孔开始后，钻孔的扫描可以用NMR卡尺的每个线圈进行。 每个扫描可以包括在每个线圈的频率范围内传播RF能量，以便在不同的深度激发NMR信号。 可以通过从扫描导出的CPMG测量中查看多个T2分布来确定来自NMR厚度的孔壁距离。 在一些实施例中，可以通过检查从扫描导出的孔隙度值来确定来自NMR厚度的钻孔壁距离。
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4.发明授权公开(公告)号：US07034528B2
公开(公告)日：2006-04-25
申请号：US10604869
申请日：2003-08-22
申请人： Chanh Cao Minh , Nicholas J. Heaton
发明人： Chanh Cao Minh , Nicholas J. Heaton
IPC分类号： G01V3/00
CPC分类号： G01N24/081 , G01V3/32
摘要： A method is disclosed for interpretation of multi-dimensional nuclear magnetic resonance data taken on a sample of an earth formation. Specifically, a set of NMR data is acquired for a fluid sample located either in a borehole or in a laboratory environment. From the set of NMR data, a multi-dimensional distribution is calculated using a mathematical inversion that is independent of prior knowledge of fluid sample properties. The multi-dimensional distribution is graphically displayed on a multi-dimensional map. Each fluid instance or artifact visible on the graph is identified as representing a probable existence of a detected fluid. One or more quantitative formation evaluation answers for one or more fluid instances is computed based on the multi-dimensional distribution associated with the respective fluid instance.
摘要翻译： 公开了一种用于解释在地层样品上采集的多维核磁共振数据的方法。 具体地，对于位于钻孔或实验室环境中的流体样品，获取一组NMR数据。 从一组NMR数据，使用独立于流体样品性质的现有知识的数学反演来计算多维分布。 多维分布图形显示在多维地图上。 图上可见的每个流体实例或伪影被识别为表示检测到的流体的可能存在。 基于与相应流体实例相关联的多维分布来计算一个或多个流体实例的一个或多个定量形成评估答案。
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5.发明授权公开(公告)号：US06600315B1
公开(公告)日：2003-07-29
申请号：US09681061
申请日：2000-12-14
IPC分类号： C01V300
CPC分类号： G01N24/081 , G01R33/4625 , G01V3/32
摘要： A method that is usable with an NMR measurement apparatus includes averaging first spin echo trains acquired from different regions of a sample to form a second spin echo train. The first spin echo trains are used to produce a first estimate of a property of the sample, and the first estimate has a first resolution and a first accuracy. The second spin echo train is used to produce a second estimate of the property, and the second estimate has a second resolution that is lower than the first resolution and a second accuracy that is higher than the first accuracy. The first and second estimates are combined to produce a third estimate of the property. The third estimate has a third resolution near the first resolution of the first estimate and a third accuracy near the second accuracy of the second estimate.
摘要翻译： 可用于NMR测量装置的方法包括对从样品的不同区域获取的第一自旋回波列进行平均以形成第二自旋回波串。 第一自旋回波列用于产生样本的属性的第一估计，并且第一估计具有第一分辨率和第一精度。 第二自旋回波串用于产生属性的第二估计，并且第二估计具有低于第一分辨率的第二分辨率和高于第一精度的第二精度。 第一和第二估计结合起来产生第三个财产估计。 第三估计在第一估计的第一分辨率附近具有第三分辨率，并且在第二估计的第二精度附近具有第三精度。
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公开(公告)号：US20080082270A1
公开(公告)日：2008-04-03
申请号：US11765484
申请日：2007-06-20
IPC分类号： E21B47/00
CPC分类号： G01V3/32 , G01N24/081 , G01R33/5617
摘要： A method to determine formation properties using two or more data sets in which the solutions corresponding to the data sets represent shared and distinct formation properties. The method analyzes the data sets and computes distributions for the shared and distinct formation properties from which the formation properties are determined.
摘要翻译： 使用两个或多个数据集来确定地层属性的方法，其中对应于数据集的解决方案表示共享和不同的地层属性。 该方法分析数据集并计算确定形成特性的共享和不同形成特征的分布。
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7.发明授权公开(公告)号：US06522138B2
公开(公告)日：2003-02-18
申请号：US09797278
申请日：2001-03-01
申请人： Nicholas J. Heaton
发明人： Nicholas J. Heaton
IPC分类号： G01V300
CPC分类号： G01N24/081 , G01R33/56 , G01R33/5608 , G01V3/32
摘要： A method for retrieving corrected individual measurements from a series of sequentially pairwise-combined measurements. The method includes providing an initial estimate for a first one of the corrected individual measurements, deriving temporary estimates for other ones of the corrected individual measurements by subtracting the initial estimate from the first sequentially pairwise-combined measurements to produce an estimate for a second one of the corrected individual measurements, and repeating the subtraction from each of the next sequentially pairwise-combined measurements until temporary estimates for each of the corrected individual measurements are obtained, and correcting errors in the temporary estimates to generate error-corrected estimates by filtering an alternating error component associated with the initial estimate.
摘要翻译： 一种从一系列顺序成对组合测量中检索校正的单个测量的方法。 该方法包括提供校正的单独测量中的第一个的初始估计，通过从第一个顺序成对组合的测量中减去初始估计来导出其他修正的单独测量的临时估计，以产生第二个 校正的单独测量值，并且从下一个顺序成对组合测量中的每一个重复进行减法，直到获得每个校正的单独测量值的临时估计值，并且在临时估计中校正误差以通过对交替误差进行滤波来产生误差校正的估计值 与初始估计相关联的组件。
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公开(公告)号：US08941383B2
公开(公告)日：2015-01-27
申请号：US13287877
申请日：2011-11-02
申请人： Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
发明人： Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
CPC分类号： E21B47/082
摘要： A method and system for determining a geometry of a borehole includes forming an nuclear magnetic resonance (NMR) caliper with a plurality of coils and coupling the NMR caliper to a borehole assembly. The NMR caliper may be calibrated for porosity and the T2 of the drilling mud, prior to drilling, at the surface. After drilling commences, scans of the borehole may be conducted with each coil of the NMR caliper. Each scan may include propagating RF energy across a range of frequencies with each coil in order to excite a NMR signal at varying depths. Borehole wall distances from the NMR caliper may be determined by reviewing a plurality of T2 distributions from CPMG measurements derived from the scans. In some embodiments, borehole wall distances from the NMR caliper may be determined by reviewing porosity values derived from the scans.
摘要翻译： 用于确定钻孔几何形状的方法和系统包括用多个线圈形成核磁共振（NMR）卡尺并将NMR卡尺耦合到钻孔组件。 可以在钻井前在表面校准NMR厚度测量孔隙度和钻井泥浆的T2。 钻孔开始后，钻孔的扫描可以用NMR卡尺的每个线圈进行。 每个扫描可以包括在每个线圈的频率范围内传播RF能量，以便在不同的深度激发NMR信号。 可以通过从扫描导出的CPMG测量中查看多个T2分布来确定来自NMR厚度的孔壁距离。 在一些实施例中，可以通过检查从扫描导出的孔隙度值来确定来自NMR厚度的钻孔壁距离。
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公开(公告)号：US06960913B2
公开(公告)日：2005-11-01
申请号：US10675556
申请日：2003-09-30
申请人： Nicholas J. Heaton
发明人： Nicholas J. Heaton
CPC分类号： G01V3/32 , G01N24/081
摘要： A method is disclosed for extracting information about a system of nuclear spins from a region of an earth formation. Specifically, a set of NMR data is acquired for a fluid sample located either in a borehole or in a laboratory environment. From the set of NMR data, a multi-dimensional distribution is calculated using a mathematical inversion that is independent of prior knowledge of fluid sample properties.
摘要翻译： 公开了从地球区域提取关于核自旋系统的信息的方法。 具体地，对于位于钻孔或实验室环境中的流体样品，获取一组NMR数据。 从一组NMR数据，使用独立于流体样品性质的现有知识的数学反演来计算多维分布。
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10.发明授权Method for determining molecular properties of hydrocarbon mixtures from NMR data 有权从NMR数据确定烃混合物的分子性质的方法公开(公告)号：US06859032B2
公开(公告)日：2005-02-22
申请号：US10029698
申请日：2001-12-18
CPC分类号： G01V3/32 , G01N24/081
摘要： A method for determining a molecular property of each constituent in a mixture of hydrocarbons includes deriving at least one dynamic parameter for each constituent in the mixture from NMR data measured on the mixture; and calculating the molecular property for the each constituent in the mixture from the at least one dynamic parameter for each constituent. The step of deriving the at least one dynamic parameter may include generating a model that includes a plurality of components for the constituents of the mixture and iteratively modifying the model components to optimize the model with respect to the NMR data. The at least one dynamic parameter includes a parameter selected from the group consisting of a longitudinal relaxation time, a transverse relaxation time, a ratio of longitudinal to transverse relaxation time, and a diffusion rate.
摘要翻译： 用于确定烃混合物中每种组分的分子性质的方法包括从混合物中测量的NMR数据导出混合物中每种组分的至少一个动态参数; 并根据每个成分的至少一个动态参数计算混合物中各成分的分子性质。 导出所述至少一个动态参数的步骤可以包括生成包括用于混合物的成分的多个组分的模型，并迭代地修改模型分量以优化相对于NMR数据的模型。 所述至少一个动态参数包括从由纵向松弛时间，横向弛豫时间，纵向弛豫时间和横向弛豫时间的比率以及扩散速率组成的组中选择的参数。
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