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21. 发明申请

US20090206834A1 METHOD FOR ESTIMATING FORMATION HYDROCARBON SATURATION USING NUCLEAR MAGNETIC RESONANCE MEASUREMENTS 有权
标题翻译：使用核磁共振测量估算形成碳氢化合物的方法
公开(公告)号：US20090206834A1
公开(公告)日：2009-08-20
申请号：US12364104
申请日：2009-02-02
申请人： Chanh Cao Minh
发明人： Chanh Cao Minh
IPC分类号： G01V3/32
CPC分类号： G01V3/32 , G01N24/081 , G01R33/50 , Y02A90/344
摘要： A method for estimating fluid saturation in a formation penetrated by a wellbore from nuclear magnetic resonance measurements made at a plurality of lateral depths into the formation from the wellbore includes estimating a bound water volume, a total porosity and a free water volume at each of the lateral depths from the nuclear magnetic resonance measurements. A minimum water saturation is estimated at each lateral depth from the total porosity, the free water volume and the bound water volume at each lateral depth. A value of water saturation is estimated at each lateral depth from the minimum water saturation at each lateral depth. A relationship between lateral depth and water saturation is determined. Water saturation is estimated at a selected lateral depth greater than the greatest lateral depth of the nuclear magnetic resonance measurements.
摘要翻译：通过从井眼在多个横向深度处进行的核磁共振测量来估计由井眼穿透的地层中的流体饱和度的方法包括估计每个井下的结合水体积，总孔隙率和自由水体积横向深度从核磁共振测量。从每个横向深度处的总孔隙率，自由水体积和结合水体积的每个横向深度估计最小水饱和度。在每个横向深度处的最小水饱和度的每个横向深度估计水饱和度的值。确定横向深度和水饱和度之间的关系。在选择的横向深度估计水饱和度大于核磁共振测量的最大横向深度。

22. 发明授权

US07034528B2 Methods for formation evaluation based on multi-dimensional representation of nuclear magnetic resonance data 有权
标题翻译：基于核磁共振数据多维表示的形成评估方法
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。

23. 发明授权

US06600315B1 Method for improving resolution of nuclear magnetic resonance measurements by combining low resolution high accuracy measurements with high resolution low accuracy measurements 有权
标题翻译：通过结合低分辨率高精度测量与高分辨率低精度测量来提高核磁共振测量的分辨率的方法
公开(公告)号：US06600315B1
公开(公告)日：2003-07-29
申请号：US09681061
申请日：2000-12-14
申请人： Nicholas J. Heaton , Charles Flaum , Chanh Cao Minh
发明人： Nicholas J. Heaton , Charles Flaum , Chanh Cao Minh
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。

24. 发明授权

US09720124B2 Logging in gas shale and other unconventional reservoirs 有权
公开(公告)号：US09720124B2
公开(公告)日：2017-08-01
申请号：US14119708
申请日：2012-08-09
申请人： Ravinath Kausik Kadayam Viswanathan , Chanh Cao Minh , Ridvan Akkurt , Baarinadh Vissapragada , Yi-Qiao Song , Lukasz Zielinski
发明人： Ravinath Kausik Kadayam Viswanathan , Chanh Cao Minh , Ridvan Akkurt , Baarinadh Vissapragada , Yi-Qiao Song , Lukasz Zielinski
IPC分类号： G01V3/14 , G01V3/32 , G01V3/38 , G01N24/08 , G01R33/44 , G01R33/563
CPC分类号： G01V3/14 , G01N24/081 , G01R33/448 , G01R33/56341 , G01V3/32 , G01V3/38
摘要： Apparatus and methods for characterizing hydrocarbons in a subterranean formation include obtaining a sample of the subterranean formation; measuring, uphole, the porosity of the sample; using a nuclear magnetic resonance (NMR) tool downhole in the borehole, sending NMR pulse sequences configured for formation pore size and measuring NMR signals that characterize the formation at a location in the formation; analyzing the signals to find a gas porosity of the formation at the location; and determining a hydrogen index (HIg) of the subterranean formation from the gas porosity and from the porosity of the sample. The obtained HIg may then be used in conjunction with downhole NMR measurements to find corrected gas porosities at locations of the formation.

25. 发明授权

US08614573B2 Estimating porosity and fluid volume 有权
标题翻译：估算孔隙度和流体体积
公开(公告)号：US08614573B2
公开(公告)日：2013-12-24
申请号：US12886962
申请日：2010-09-21
申请人： Chanh Cao Minh
发明人： Chanh Cao Minh
IPC分类号： G01V3/00
CPC分类号： G01V3/18 , Y02A90/344
摘要： The present disclosure relates to a method to estimate a subsurface formation property. A downhole logging tool is provided and disposed in a wellbore. Multiple measurements of various measurement types are obtained at various depths of investigation using the downhole logging tool. The multiple measurements may include natural gamma ray measurements, density measurements, resistivity measurements, nuclear measurements, and nuclear magnetic resonance measurements. The signal-to-noise ratio of the measured signals is increased using, for example, lateral stacking and multi-shell inversion. The subsurface formation property is estimated using the increased signal-to-noise ratio signals. The subsurface formation property may include porosity, adsorbed gas volume, free gas volume, bound water volume, free water volume, oil volume, and kerogen volume. A fluid analysis may be performed using a multi-dimensional nuclear magnetic resonance technique. Fluids such as water, oil, gas, and oil-based mud in the wellbore may be identified and/or evaluated.
摘要翻译：本公开涉及一种估计地下地层特性的方法。井下测井工具被提供并设置在井眼中。使用井下测井工具在不同深度的测量中获得各种测量类型的多次测量。多个测量可以包括自然伽马射线测量，密度测量，电阻率测量，核测量和核磁共振测量。测量信号的信噪比例如使用横向堆叠和多壳反演来增加。使用增加的信噪比信号估计地下地层形成特性。地下形成特性可以包括孔隙率，吸附气体体积，游离气体体积，结合水体积，游离水体积，油体积和干酪根体积。可以使用多维核磁共振技术进行流体分析。可以鉴定和/或评估井眼中的液体，例如水，油，气体和油基泥浆。

26. 发明授权

US08378684B2 Method for determining fluid type in reservoir 有权
标题翻译：确定储层流体类型的方法
公开(公告)号：US08378684B2
公开(公告)日：2013-02-19
申请号：US12423073
申请日：2009-04-14
申请人： Chanh Cao Minh , Michel Claverie
发明人： Chanh Cao Minh , Michel Claverie
IPC分类号： G01V3/10
CPC分类号： G01V3/28
摘要： A method for determining a formation type within a wellbore includes forming the wellbore such that the wellbore intersects fractures within a formation. Hydrocarbons are produced from the formation. An induction tool is disposed into the wellbore after producing the hydrocarbons. A resistivity of a portion of the formation is measured with the induction tool. The resistivity of the portion of the formation is compared with a known formation type. The formation type of the portion of the formation is determined based on the resistivity. A characteristic of the formation type is output.
摘要翻译：用于确定井筒内的地层类型的方法包括形成井筒，使得井筒与地层内的裂缝相交。烃从地层中产生。在制造碳氢化合物之后，将感应工具设置在井眼中。用感应工具测量地层的一部分的电阻率。将地层部分的电阻率与已知的地层类型进行比较。基于电阻率确定地层部分的形成类型。输出形成类型的特征。

27. 发明申请

US20120192640A1 Borehole Imaging and Formation Evaluation While Drilling 审中-公开
标题翻译：钻井时的钻孔成像和形成评估
公开(公告)号：US20120192640A1
公开(公告)日：2012-08-02
申请号：US13298938
申请日：2011-11-17
申请人： Chanh Cao Minh , Daniel Codazzi , Ruben Martinez , Roger Griffiths , Kais B.M. Gzara , Qiming Li , Colin Michael Sayers , Reza Taherian
发明人： Chanh Cao Minh , Daniel Codazzi , Ruben Martinez , Roger Griffiths , Kais B.M. Gzara , Qiming Li , Colin Michael Sayers , Reza Taherian
IPC分类号： E21B49/00 , G01V3/32 , G01V3/18
CPC分类号： E21B47/0002 , E21B7/06 , E21B17/1021 , E21B47/011 , E21B47/124 , G01V11/005
摘要： A logging tool having a plurality of different sensor types having close spacings mounted on an articulated or extendible pad, a sleeve, a mandrel, a stabilizer, or some combination of those is provided and used to make measurements in a wellbore in a single logging run. Those measurements are used to create images of the wellbore and the images are used to deduce the local geology, optimize well placement, perform geomechanical investigation, optimize drilling operations, and perform formation evaluation. The logging tool includes a processor capable of making those measurements, creating those images, performing those operations, and making those determinations. The plurality of different sensors may be one or more resistivity sensors, dielectric sensors, acoustic sensors, ultrasonic sensors, caliper sensors, nuclear magnetic resonance sensors, natural spectral gamma ray sensors, spectroscopic sensors, cross-section capture sensors, and nuclear sensors, and they may be “plug-and-play” sensors.
摘要翻译：提供具有多个不同传感器类型的测井工具，其具有安装在铰接或可延伸的垫，套筒，心轴，稳定器或其中的一些组合上的紧密间隔，并用于在单次测井运行中在井筒中进行测量。这些测量用于创建井筒的图像，并且图像用于推导出当地地质学，优化井位置，进行地质力学调查，优化钻井作业，并进行地层评估。记录工具包括能够进行这些测量，创建这些图像，执行这些操作并进行这些测定的处理器。多个不同的传感器可以是一个或多个电阻率传感器，电介质传感器，声学传感器，超声波传感器，卡尺传感器，核磁共振传感器，自然光谱伽马射线传感器，光谱传感器，横截面捕获传感器和核传感器，以及它们可能是“即插即用”传感器。

28. 发明申请

US20110068788A1 ESTIMATING POROSITY AND FLUID VOLUME 有权
标题翻译：估计孔隙度和流体体积
公开(公告)号：US20110068788A1
公开(公告)日：2011-03-24
申请号：US12886962
申请日：2010-09-21
申请人： CHANH CAO MINH
发明人： CHANH CAO MINH
IPC分类号： G01V3/175
CPC分类号： G01V3/18 , Y02A90/344
摘要： The present disclosure relates to a method to estimate a subsurface formation property. A downhole logging tool is provided and disposed in a wellbore. Multiple measurements of various measurement types are obtained at various depths of investigation using the downhole logging tool. The multiple measurements may include natural gamma ray measurements, density measurements, resistivity measurements, nuclear measurements, and nuclear magnetic resonance measurements. The signal-to-noise ratio of the measured signals is increased using, for example, lateral stacking and multi-shell inversion. The subsurface formation property is estimated using the increased signal-to-noise ratio signals. The subsurface formation property may include porosity, adsorbed gas volume, free gas volume, bound water volume, free water volume, oil volume, and kerogen volume. A fluid analysis may be performed using a multi-dimensional nuclear magnetic resonance technique. Fluids such as water, oil, gas, and oil-based mud in the wellbore may be identified and/or evaluated.
摘要翻译：本公开涉及一种估计地下地层特性的方法。井下测井工具被提供并设置在井眼中。使用井下测井工具在不同深度的测量中获得各种测量类型的多次测量。多个测量可以包括自然伽马射线测量，密度测量，电阻率测量，核测量和核磁共振测量。测量信号的信噪比例如使用横向堆叠和多壳反演来增加。使用增加的信噪比信号估计地下地层形成特性。地下形成特性可以包括孔隙率，吸附气体体积，游离气体体积，结合水体积，游离水体积，油体积和干酪根体积。可以使用多维核磁共振技术进行流体分析。可以鉴定和/或评估井眼中的液体，例如水，油，气体和油基泥浆。

29. 发明授权

US07888933B2 Method for estimating formation hydrocarbon saturation using nuclear magnetic resonance measurements 有权
标题翻译：使用核磁共振测量估算地层烃饱和度的方法
公开(公告)号：US07888933B2
公开(公告)日：2011-02-15
申请号：US12364104
申请日：2009-02-02
申请人： Chanh Cao Minh
发明人： Chanh Cao Minh
IPC分类号： G01V3/00
CPC分类号： G01V3/32 , G01N24/081 , G01R33/50 , Y02A90/344
摘要： A method for estimating fluid saturation in a formation penetrated by a wellbore from nuclear magnetic resonance measurements made at a plurality of lateral depths into the formation from the wellbore includes estimating a bound water volume, a total porosity and a free water volume at each of the lateral depths from the nuclear magnetic resonance measurements. A minimum water saturation is estimated at each lateral depth from the total porosity, the free water volume and the bound water volume at each lateral depth. A value of water saturation is estimated at each lateral depth from the minimum water saturation at each lateral depth. A relationship between lateral depth and water saturation is determined. Water saturation is estimated at a selected lateral depth greater than the greatest lateral depth of the nuclear magnetic resonance measurements.
摘要翻译：通过从井眼在多个横向深度处进行的核磁共振测量来估计由井眼穿透的地层中的流体饱和度的方法包括估计每个井下的结合水体积，总孔隙率和自由水体积横向深度从核磁共振测量。从每个横向深度处的总孔隙率，自由水体积和结合水体积的每个横向深度估计最小水饱和度。在每个横向深度处的最小水饱和度的每个横向深度估计水饱和度的值。确定横向深度和水饱和度之间的关系。在选择的横向深度估计水饱和度大于核磁共振测量的最大横向深度。

30. 发明申请

US20100283490A1 DETERMINING FORMATION PROPERTIES WHILE DRILLING 有权
标题翻译：确定钻井时的形成特性
公开(公告)号：US20100283490A1
公开(公告)日：2010-11-11
申请号：US12721845
申请日：2010-03-11
申请人： Chanh Cao Minh , Ahmad Madjidi
发明人： Chanh Cao Minh , Ahmad Madjidi
IPC分类号： G01R27/08 , G01V3/18
CPC分类号： G01V11/00
摘要： The present disclosure relates to a method to determine a characteristic of a subsurface formation using a downhole logging tool. A downhole logging tool having the ability to make substantially concurrent disparate measurements on the subsurface formation is provided and substantially concurrent disparate measurements on the formation using the downhole logging tool are made. Those measurements are used to solve a system of equations simultaneously and the solution to the system of equations is used to determine the characteristic of the subsurface formation.
摘要翻译：本公开涉及一种使用井下测井工具确定地下地层特征的方法。提供了具有对地下地层进行基本上同时不同的测量的能力的井下测井工具，并且使用井下测井工具对地层进行基本上同时的不同的测量。这些测量用于同时求解方程组，并且使用方程组方程来确定地下构造的特征。

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