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1. 发明授权

US07356413B2 Pore-scale geometric models for interpretation of downhole formation evaluation data 有权
标题翻译：用于解释井下地层评估数据的孔隙尺度几何模型
公开(公告)号：US07356413B2
公开(公告)日：2008-04-08
申请号：US11146886
申请日：2005-06-03
申请人： Daniel T. Georgi , Songhua Chen , David Jacobi
发明人： Daniel T. Georgi , Songhua Chen , David Jacobi
IPC分类号： G01V11/00
CPC分类号： G01V11/00 , G01N24/081 , G01V2210/6167
摘要： Parameters of a pore-scale geometric model of a clastic earth formation are adjusted so that the output of the model matches measurements made on a core sample. Additional properties of the earth formation are predicted using the pore-scale model. The additional properties may be based on additional measurements of properties of a fluid in the formation.
摘要翻译：调整碎屑岩地层的孔隙尺度几何模型的参数，使得模型的输出与核心样本上进行的测量相匹配。使用孔隙尺度模型预测地层的附加属性。额外的性质可以基于地层中流体的性质的附加测量。

2. 发明授权

US07257490B2 Pore-scale geometric models for interpretation of downhole formation evaluation data 有权
标题翻译：用于解释井下地层评估数据的孔隙尺度几何模型
公开(公告)号：US07257490B2
公开(公告)日：2007-08-14
申请号：US11147063
申请日：2005-06-03
申请人： Daniel T. Georgi , Songhua Chen , David Jacobi
发明人： Daniel T. Georgi , Songhua Chen , David Jacobi
IPC分类号： G01V11/00
CPC分类号： G01V11/00
摘要： Parameters of a pore-scale geometric model of a clastic earth formation are adjusted so that the output of the model matches measurements made one a core sample. Additional properties of the earth formation are predicted using the pore-scale model. The additional properties may be based on additional measurements of properties of a fluid in the formation.
摘要翻译：调整碎屑岩地层的孔隙尺度几何模型的参数，使得模型的输出与测量结果匹配成为一个核心样本。使用孔隙尺度模型预测地层的附加属性。额外的性质可以基于地层中流体的性质的附加测量。

3. 发明授权

US07753119B2 In-situ heavy-oil reservoir evaluation with artificial temperature elevation 有权
标题翻译：人工温度升高的原位重油层评估
公开(公告)号：US07753119B2
公开(公告)日：2010-07-13
申请号：US10818873
申请日：2004-04-06
申请人： Songhua Chen , Daniel T. Georgi
发明人： Songhua Chen , Daniel T. Georgi
IPC分类号： E21B49/00 , G01V3/00
CPC分类号： G01V3/32
摘要： Many reservoirs of interest include heavy oil. In such reservoirs, partly at normal temperatures, many instruments commonly used for formation evaluation may not be able to distinguish between heavy oil and bound water in the formation. Passive or active heating is used to elevate the temperature of the fluids in the formation. At elevated temperatures, distinguishing between heavy oil and bound water is easier. Of particular interest is the increase in the resolvability of the transverse relaxation time T2 of NMR spin echo measurements. Additionally, the dielectric constant and the loss tangents of water and heavy oil show different temperature and frequency dependence.
摘要翻译：许多有意义的水库包括重油。在这种储层中，部分在正常温度下，通常用于地层评估的许多仪器可能无法区分地层中重油和结合水。被动或主动加热用于提高地层中流体的温度。在升高的温度下，区分重油和结合水更容易。特别感兴趣的是NMR自旋回波测量的横向弛豫时间T2的可分解性的增加。此外，水和重油的介电常数和损耗角正切表现出不同的温度和频率依赖性。

4. 发明授权

US06755246B2 In-situ heavy-oil reservoir evaluation with artificial temperature elevation 失效
公开(公告)号：US06755246B2
公开(公告)日：2004-06-29
申请号：US10223177
申请日：2002-08-19
申请人： Songhua Chen , Daniel T. Georgi
发明人： Songhua Chen , Daniel T. Georgi
IPC分类号： E21B4900
CPC分类号： G01V3/32
摘要： Many reservoirs of interest include heavy oil. In such reservoirs, parti at normal temperatures, many instruments commonly used for formation evaluation may not be able to distinguish between heavy oil and bound water in the formation. Passive or active heating is used to elevate the temperature of the fluids in the formation. At elevated temperatures, distinguishing between heavy oil and bound water is easier. Of particular interest is the increase in the resolvability of the transverse relaxation time T2 of NMR spin echo measurements. Additionally, the dielectric constant and the loss tangents of water and heavy oil show different temperature and frequency dependence.

5. 发明授权

US6084408A Methods for acquisition and processing of nuclear magnetic resonance signals for determining fluid properties in petroleum reservoirs having more than one fluid phase 失效
标题翻译：用于获取和处理用于确定具有多于一个流体相的石油储层中的流体性质的核磁共振信号的方法
公开(公告)号：US6084408A
公开(公告)日：2000-07-04
申请号：US23310
申请日：1998-02-13
申请人： Songhua Chen , Daniel T. Georgi
发明人： Songhua Chen , Daniel T. Georgi
IPC分类号： G01R33/44 , G01V3/32 , G01V3/00
CPC分类号： G01N24/081 , G01V3/32
摘要： A method for determining intrinsic transverse relaxation time of a first mobile phase in a porous medium using nuclear magnetic resonance measurement sequences. The sequences are measured at first and second wait times. At least two different interecho spacing times are used for each wait time. The first and second wait time are selected to provide different magnetization recoveries of the first phase, and are selected to be longer than the longitudinal relaxation time of a second mobile phase. For the measurements made at the first interecho spacing time, components of signals in the measurements corresponding to the first phase are separated from components corresponding to the second mobile phase by determining differences between the signals measured at the first and at the second wait times. The step of separating is performed for each of the interecho spacing times. An apparent transverse relaxation time of the first mobile phase is calculated from the separated components for each one of the interecho spacing times. A relationship of the apparent transverse relaxation time with respect to the interecho spacing time is determined, and the intrinsic relaxation time is calculated from the relationship. Viscosity of the first mobile phase can be determined from the intrinsic relaxation time.
摘要翻译：使用核磁共振测量序列确定多孔介质中的第一流动相的固有横向弛豫时间的方法。在第一和第二等待时间测量序列。每个等待时间使用至少两个不同的间隔时间。选择第一和第二等待时间以提供第一相的不同磁化恢复，并且被选择为长于第二流动相的纵向弛豫时间。对于在第一相互间隔时间进行的测量，通过确定在第一等待时间和第二等待时间测量的信号之间的差异，将与第一相位对应的测量值中的信号的分量与对应于第二移动相位的分量分离。对于每个间隔间隔时间执行分离步骤。对于每个间隔间隔时间，从分离的分量计算第一流动相的明显的横向弛豫时间。确定表观横向弛豫时间与相互间隔间隔时间的关系，并根据关系计算本征弛豫时间。可以从固有弛豫时间确定第一流动相的粘度。

6. 发明授权

US07825659B2 Pore-scale geometric models for interpretation of downhole formation evaluation data 有权
标题翻译：用于解释井下地层评估数据的孔隙尺度几何模型
公开(公告)号：US07825659B2
公开(公告)日：2010-11-02
申请号：US12017284
申请日：2008-01-21
申请人： Daniel T. Georgi , Mikhail Gladkikh , Songhua Chen
发明人： Daniel T. Georgi , Mikhail Gladkikh , Songhua Chen
IPC分类号： G01V3/00
CPC分类号： G01V3/32 , G01N24/081 , G01R33/3808 , G01R33/448
摘要： The grain size of a pore-scale geometric model of a clastic earth formation are adjusted so that the NMR relaxation time distribution output of the model matches a measured NMR distribution. Fluid drainage and imbibing can be simulated. Additional properties of the earth formation are predicted using the pore-scale model. The additional properties may be based on additional measurements of properties of a fluid in the formation.
摘要翻译：调整碎屑土地层的孔隙尺度几何模型的晶粒尺寸，使得模型的NMR弛豫时间分布输出与测量的NMR分布相匹配。可以模拟流体排水和吸水。使用孔隙尺度模型预测地层的附加属性。额外的性质可以基于地层中流体的性质的附加测量。

7. 发明授权

US6069477A Method for improving the accuracy of NMR relaxation distribution analysis with two echo trains 失效
标题翻译：用两个回波列提高NMR弛豫分布分析精度的方法
公开(公告)号：US6069477A
公开(公告)日：2000-05-30
申请号：US994497
申请日：1997-12-19
申请人： Songhua Chen , Daniel T. Georgi
发明人： Songhua Chen , Daniel T. Georgi
IPC分类号： G01R33/44 , G01V3/32 , G01V3/00
CPC分类号： G01V3/32 , G01N24/081
摘要： The total porosity of a subterranean formation is calculated by summing the effective Porosity and the clay bound water (CBW) porosity. With the invention described in this patent, the distortion effects of clay bound water (CBW) porosity on the measurement of total porosity is filtered out. The effects will be more significant in slialy sand where the CBW porosity component of total porosity is abundant. The correct NMR transverse relaxation time (T.sub.2) spectra distribution is essential to a determination of capillary bound fluid (BVI) partial porosity and the Spectral Bulk Volume Irreducible (SBVI) model. The same data correction concept can be applied to make a meaningful comparison of well logs or laboratory core NMR data that are obtained with different interecho time (TE) sampling periods.
摘要翻译：通过将有效孔隙度和粘土结合水（CBW）孔隙度相加来计算地层的总孔隙率。利用该专利中描述的发明，滤除粘土结合水（CBW）孔隙度对总孔隙度测量的变形效应。这种效应在总孔隙度的CBW孔隙度分量丰富的泥沙中更为显着。正确的NMR横向弛豫时间（T2）光谱分布对于确定毛细血管结合流体（BVI）部分孔隙度和光谱体积不可约（SBVI）模型是必不可少的。可以应用相同的数据校正概念，以便对不同间隔时间（TE）采样周期获得的测井数据或实验室核心NMR数据进行有意义的比较。

8. 发明授权

US07363161B2 Pore-scale geometric models for interpretation of downhole formation evaluation data 有权
标题翻译：用于解释井下地层评估数据的孔隙尺度几何模型
公开(公告)号：US07363161B2
公开(公告)日：2008-04-22
申请号：US11445023
申请日：2006-06-01
申请人： Daniel T. Georgi , Mikhail Gladkikh , Songhua Chen
发明人： Daniel T. Georgi , Mikhail Gladkikh , Songhua Chen
IPC分类号： G01V3/18
CPC分类号： G01V3/32 , G01N24/081
摘要： The grain size of a pore-scale geometric model of a clastic earth formation are adjusted so that the NMR relaxation time distribution output of the model matches a measured NMR distribution. Fluid drainage and imbibing can be simulated. Additional properties of the earth formation are predicted using the pore-scale model. The additional properties may be based on additional measurements of properties of a fluid in the formation.
摘要翻译：调整碎屑土地层的孔隙尺度几何模型的晶粒尺寸，使得模型的NMR弛豫时间分布输出与测量的NMR分布相匹配。可以模拟流体排水和吸水。使用孔隙尺度模型预测地层的附加属性。额外的性质可以基于地层中流体的性质的附加测量。

9. 发明授权

US08307704B2 Apparatus and methods for gas volume retained coring 有权
标题翻译：气体体积保留取心装置及方法
公开(公告)号：US08307704B2
公开(公告)日：2012-11-13
申请号：US12641692
申请日：2009-12-18
申请人： Daniel T. Georgi , Larry M. Hall , Baoyan Li
发明人： Daniel T. Georgi , Larry M. Hall , Baoyan Li
IPC分类号： E21B49/02
CPC分类号： G01V9/00 , E21B25/00 , E21B47/10 , G01N33/24
摘要： An apparatus for use in a wellbore may include a tool having a first section configured to receive a core and a second section configured to collect a gas escaping from the core. The apparatus may also include a sensor associated to provide signals relating to a property of gas. In one aspect, the second section may be removable and may be pressurized. The apparatus may also include a recorder that records data representative of the signals received from the sensor. The recorder may record data while the tool is retrieved from the wellbore. A method for estimating a parameter of interest of a formation includes retrieving a core from the formation, collecting a gas escaping from the core as the core is retrieved to the surface, and measuring at least one property of gas while the core is retrieved to the surface.
摘要翻译：用于井眼的装置可以包括具有构造成容纳芯的第一部分和被配置为收集从芯排出的气体的第二部分的工具。该装置还可以包括与提供与气体性质有关的信号的传感器。在一个方面，第二部分可以是可移除的并且可以被加压。该装置还可以包括记录表示从传感器接收的信号的数据的记录器。记录仪可以在从井眼检索工具时记录数据。一种用于估计地层感兴趣的参数的方法包括：从地层取回岩心;当核心被取回到地面时收集从核心排出的气体;以及在核心被取回到地面时测量气体的至少一个属性表面。

10. 发明授权

US07826050B2 System and method for dual path length optical analysis of fluids downhole 有权
标题翻译：井下液体双路径光学分析的系统和方法
公开(公告)号：US07826050B2
公开(公告)日：2010-11-02
申请号：US11850434
申请日：2007-09-05
申请人： Rocco DiFoggio , Paul A. Bergren , Francisco Galvan-Sanchez , Daniel T. Georgi
发明人： Rocco DiFoggio , Paul A. Bergren , Francisco Galvan-Sanchez , Daniel T. Georgi
IPC分类号： G01N21/00
CPC分类号： G01N21/0303 , G01N2021/0307 , G02B2207/117
摘要： A method is disclosed for changing an optical path length through a fluid downhole, comprising interspersing an optically transmissive member into a first optical path through the fluid, thereby creating a second shorter optical path through the fluid. In another embodiment, the method further comprises measuring an intensity of light, I1 transmitted through the first optical path; measuring an intensity of light, I2 transmitted through the second optical path; and estimating an optical property for the second optical path from the ratio, I1/I2. A system is disclosed for changing an optical path length through a fluid downhole, comprising a fluid passage between two optically transmissive windows for the fluid downhole, the fluid passage having a first optical path through the fluid; and an optically transmissive member for insertion into the first optical path, thereby creating a second shorter optical path through the fluid.
摘要翻译：公开了一种用于通过井下流体改变光路长度的方法，其包括将透光构件分散到通过流体的第一光路中，从而产生通过流体的第二较短光路。在另一个实施例中，该方法还包括测量通过第一光路传输的光的强度; 测量通过第二光路传输的光的强度; 并从该比率I1 / I2估计第二光路的光学特性。公开了一种用于通过井下流体改变光路长度的系统，包括用于流体井下的两个光学透射窗之间的流体通道，流体通道具有穿过流体的第一光路; 以及用于插入到第一光路中的透光构件，从而产生通过流体的第二较短光路。

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