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51. 发明授权

US07565833B2 Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis 有权
标题翻译：自动调整NMR脉冲序列，以实时分析优化SNR
公开(公告)号：US07565833B2
公开(公告)日：2009-07-28
申请号：US11782212
申请日：2007-07-24
申请人： Michael Gillen , Ole G. Engels , W. Allen Gilchrist , Darryl E. Trcka , Thomas Kruspe , Songhua Chen
发明人： Michael Gillen , Ole G. Engels , W. Allen Gilchrist , Darryl E. Trcka , Thomas Kruspe , Songhua Chen
IPC分类号： E21B49/00 , G01V3/14
CPC分类号： E21B47/00 , E21B47/04 , G01N24/081 , G01R33/3808 , G01R33/445 , G01R33/448 , G01R33/543 , G01V3/32
摘要： Data from a string of multiple formation evaluation data sensor are evaluated by an expert system. Based on the analysis, the logging speed is increased if all the sensors justify it, and is reduced if any of the sensors require a reduced logging speed. Alternatively, the sensitive volume of a NMR sensor is altered based on a determination of a fraction of the sensitive volume that includes a borehole fluid. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
摘要翻译：来自一系列多层评估数据传感器的数据由专家系统评估。基于分析，如果所有的传感器证明它，记录速度就会提高，如果任何一个传感器需要降低记录速度，就会降低记录速度。或者，基于包括井眼流体的敏感体积的分数的确定来改变NMR传感器的灵敏体积。要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

52. 发明申请

US20080234937A1 DETERMINATION OF GAS SATURATION RADIAL PROFILE FROM MULTI-FREQUENCY NMR DATA 有权
标题翻译：从多频谱数据中确定气体饱和辐射剖面
公开(公告)号：US20080234937A1
公开(公告)日：2008-09-25
申请号：US11689887
申请日：2007-03-22
申请人： Sheng Fang , Songhua Chen
发明人： Sheng Fang , Songhua Chen
IPC分类号： G01V3/38 , G01V3/14
CPC分类号： G01R33/5615 , G01N24/081 , G01R33/448 , G01V3/32
摘要： A method for determining fluid saturation in a formation at a plurality of radial depths near a wellbore, the method including: obtaining multi-frequency nuclear magnetic resonance (NMR) response data for the formation; and processing the data to determine simultaneously the fluid saturation at each radial depth. A computer program product is provided.
摘要翻译：一种用于确定井眼附近的多个径向深度处的地层中的流体饱和度的方法，所述方法包括：获得用于地层的多频核磁共振（NMR）响应数据; 并处理数据以同时确定每个径向深度处的流体饱和度。提供计算机程序产品。

53. 发明申请

US20080021654A1 Automatic Adjustment of NMR Pulse Sequence to Optimize SNR Based On Real Time Analysis 有权
标题翻译：基于实时分析的NMR脉冲序列自动调整优化SNR
公开(公告)号：US20080021654A1
公开(公告)日：2008-01-24
申请号：US11782212
申请日：2007-07-24
申请人： Michael Gillen , Ole Engels , W. Gilchrist , Darryl Trcka , Thomas Kruspe , Songhua Chen
发明人： Michael Gillen , Ole Engels , W. Gilchrist , Darryl Trcka , Thomas Kruspe , Songhua Chen
IPC分类号： E21B47/00
CPC分类号： E21B47/00 , E21B47/04 , G01N24/081 , G01R33/3808 , G01R33/445 , G01R33/448 , G01R33/543 , G01V3/32
摘要： Data from a string of multiple formation evaluation data sensor are evaluated by an expert system. Based on the analysis, the logging speed is increased if all the sensors justify it, and is reduced if any of the sensors require a reduced logging speed. Alternatively, the sensitive volume of a NMR sensor is altered based on a determination of a fraction of the sensitive volume that includes a borehole fluid. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
摘要翻译：来自一系列多层评估数据传感器的数据由专家系统评估。基于分析，如果所有的传感器证明它，记录速度就会提高，如果任何一个传感器需要降低记录速度，就会降低记录速度。或者，基于包括井眼流体的敏感体积的分数的确定来改变NMR传感器的灵敏体积。要强调的是，该摘要被提供以符合要求抽象的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

54. 发明授权

US06972564B2 Objective oriented methods for NMR log acquisitions for estimating earth formation and fluid properties 有权
标题翻译：用于估算地层和流体性质的NMR测井采集的面向目标的方法
公开(公告)号：US06972564B2
公开(公告)日：2005-12-06
申请号：US10288115
申请日：2002-11-05
申请人： Songhua Chen , Carl M. Edwards
发明人： Songhua Chen , Carl M. Edwards
IPC分类号： G01R33/44 , G01V3/32 , G01V3/00
CPC分类号： G01N24/081 , G01V3/32
摘要： An objective oriented NMR logging method selects pulse sequences over a plurality of frequencies from a set of building blocks. The building blocks include trainlet sequences wherein each trainlet comprises an excitation pulse and a plurality of refocusing pulses, the total length of a trainlet being typically less than 10 ms. Another building block is a short CPMG or modified CPMG sequence and yet another building block is a regular CPMG or modified CPMG sequence. The modified CPMG sequences may have refocusing pulses with a tipping angle less than 180° to reduce the power consumption. Based on the logging objective (formation evaluation or FE, FE plus hydrocarbon typing, FE plus gas evaluation) the building blocks are combined at a plurality of frequencies with different wait times and TEs.
摘要翻译：一种面向目标的NMR测井方法从一组结构单元中选择多个频率上的脉冲序列。构建块包括列车序列，其中每个列车包括激励脉冲和多个重新聚焦脉冲，列车的总长度通常小于10ms。另一个构建块是短CPMG或修改CPMG序列，而另一个构建块是常规CPMG或修改CPMG序列。修改的CPMG序列可以具有小于180°的倾翻角的重聚焦脉冲以降低功耗。基于测井目标（地层评估或FE，FE加烃类型，FE加气评估），构建块以不同的等待时间和TE的多个频率组合。

55. 发明申请

US20050257610A1 Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis 有权
标题翻译：自动调整NMR脉冲序列，以实时分析优化SNR
公开(公告)号：US20050257610A1
公开(公告)日：2005-11-24
申请号：US11179990
申请日：2005-07-12
申请人： Mike Gillen , Ole Engels , W. Gilchrist , Darryl Trcka , Thomas Kruspe , Songhua Chen
发明人： Mike Gillen , Ole Engels , W. Gilchrist , Darryl Trcka , Thomas Kruspe , Songhua Chen
IPC分类号： E21B47/12 , E21B47/00 , E21B47/26 , G01R33/44 , G01V3/32
CPC分类号： E21B47/00 , E21B47/04 , G01N24/081 , G01R33/3808 , G01R33/445 , G01R33/448 , G01R33/543 , G01V3/32
摘要： Data from a string of multiple formation evaluation data sensor are evaluated by an expert system. Based on the analysis, the logging speed is increased if all the sensors justify it, and is reduced if any of the sensors require a reduced logging speed. Alternatively, the sensitive volume of a NMR sensor is altered based on a determination of a fraction of the sensitive volume that includes a borehole fluid.
摘要翻译：来自一系列多层评估数据传感器的数据由专家系统评估。基于分析，如果所有的传感器证明它，记录速度就会提高，如果任何一个传感器需要降低记录速度，就会降低记录速度。或者，基于包括井眼流体的敏感体积的分数的确定来改变NMR传感器的灵敏体积。

56. 发明授权

US06331775B1 Gas zone evaluation by combining dual wait time NMR data with density data 有权
标题翻译：通过组合双等时时间NMR数据与密度数据进行气体区评估
公开(公告)号：US06331775B1
公开(公告)日：2001-12-18
申请号：US09396286
申请日：1999-09-15
申请人： Holger F. Thern , Songhua Chen
发明人： Holger F. Thern , Songhua Chen
IPC分类号： G01V300
CPC分类号： G01V11/00 , G01N24/081 , G01V3/32
摘要： A method for acquiring nuclear magnetic resonance measurements of a medium uses a modified CPMG pulse sequence wherein the refocusing pulses may be optiimized, having a shorter duration than a 180° pulse. Data are acquired in gas reservoirs using two different wait times, both of which are sufficient to polarize the liquid in the reservoir to a known exteny, preferably 100%, while the amount of polarization of the gas in the reservoir is substantially different for the two wait times. Data from the dual wait time NMR pulse sequences give two different apparent porosities of the formation. A third apparent porosity is obtained from density measurements. Combining these three apparent porosities with a temperature measurement and empirical relations between various petrophysical parameters gives the true porosity, the gas density, the gas hydrogen index and the spin-lattice relaxation time of the gas at a single depth. In an alternate embodiment of the invention, apparent porosity measurements made at a plurality of depths within a connected gas reservoir are averaged and, in combination with temperature measurements in the reservoir, the same petrophysical parameters are obtained with the gas properties being constant, thus reducing numerical instability in the solution of the equations relating the petrophysical parameters.
摘要翻译：用于获取介质的核磁共振测量的方法使用修改的CPMG脉冲序列，其中重聚焦脉冲可被优化，具有比180°脉冲更短的持续时间。使用两个不同的等待时间在气藏中获取数据，这两个等待时间都足以将储层中的液体极化到已知的范围，优选为100％，同时储存器中的气体的极化量对于两个等待时间来自双等待时间NMR脉冲序列的数据给出了两个不同的表观孔隙度的形成。从密度测量获得第三表观孔隙率。将这三种表观孔隙度与温度测量和各种岩石物理参数之间的经验关系相结合，可以获得真实的孔隙度，气体密度，气体氢指数和单一深度气体的自旋晶格弛豫时间。在本发明的替代实施例中，在连接的气体储存器内的多个深度处进行的表观孔隙度测量被平均，并且与储层中的温度测量结合，获得相同的岩石物理参数，其中气体性质是恒定的，从而减少与岩石物理参数有关的方程解的数值不稳定性。

57. 发明授权

US10042026B2 Apparatus and methods of data inversion 有权
公开(公告)号：US10042026B2
公开(公告)日：2018-08-07
申请号：US14414031
申请日：2012-07-24
申请人： Jing Li , Songhua Chen
发明人： Jing Li , Songhua Chen
IPC分类号： G01V3/00 , G01R33/54 , G01N24/08 , G06F17/11
摘要： Various embodiments include apparatus and methods to determine properties of a structure using data measurements on the structure. These measurements can be subjected to an inversion process that uses an optimization procedure conducted in a continuous function space. Additional apparatus, systems, and methods are disclosed.

58. 发明授权

US09335195B2 Multiphase meter to provide data for production management 有权
标题翻译：多相电表提供生产管理数据
公开(公告)号：US09335195B2
公开(公告)日：2016-05-10
申请号：US13028553
申请日：2011-02-16
申请人： Joo Tim Ong , Songhua Chen , Terry R. Bussear
发明人： Joo Tim Ong , Songhua Chen , Terry R. Bussear
IPC分类号： G01F1/00 , G01F1/74 , G01F1/56 , G01F1/58 , G01F1/60 , G01N24/08 , G01R33/383 , G01V3/32
CPC分类号： G01F1/74 , G01F1/56 , G01F1/586 , G01F1/588 , G01F1/60 , G01N24/081 , G01N24/082 , G01R33/383 , G01V3/32
摘要： A method and apparatus for determining a volume of a phase of a multiphase fluid flowing in a production tubular is provided. A magnetic field is imparted on the fluid to align nuclei of the multiphase fluid along a direction of the magnetic field. A radio frequency signal is transmitted into the multiphase fluid to excite the nuclei, and a signal is detected from the nuclei responsive to the transmitted radio frequency signal. An amplitude of the detected signal is determined and the volume of the phase flowing in the production tubular is determined using the determined amplitude and an amplitude of a calibration signal.
摘要翻译：提供了一种用于确定在生产管中流动的多相流体的相的体积的方法和装置。在流体上施加磁场以使多相流体的核沿着磁场的方向对准。将射频信号传输到多相流体中以激发核，并且响应于所发射的射频信号从核检测信号。确定检测信号的幅度，并且使用所确定的校准信号的幅度和振幅来确定在生产管中流动的相的体积。

59. 发明申请

US20150054503A1 NUCLEAR MAGNETIC RESONANCE LOGGING TOOL HAVING MULTIPLE PAD-MOUNTED ATOMIC MAGNETOMETERS 有权
标题翻译：核磁共振记录工具，具有多个安装在一起的原子磁力计
公开(公告)号：US20150054503A1
公开(公告)日：2015-02-26
申请号：US14377813
申请日：2012-02-08
申请人： Songhua Chen , Ron Charles Balliet
发明人： Songhua Chen , Ron Charles Balliet
IPC分类号： G01V3/32 , G01R33/483
CPC分类号： G01V3/32 , E21B17/1021 , G01R33/26 , G01R33/4831
摘要： Various disclosed nuclear magnetic resonance (NMR) logging systems and methods employ a plurality of NMR sensors, including atomic magnetometers, mounted on pads. Certain method embodiments include: utilizing the Earth magnetic field to pre-polarize the protons in a formation; utilizing a plurality of atomic magnetometers to obtain NMR measurements; and determining at least one characteristic relaxation time of the formation. The NMR sensor may optionally include a permanent magnet assembly.
摘要翻译：各种公开的核磁共振（NMR）测井系统和方法使用安装在焊盘上的多个NMR传感器，包括原子磁强计。某些方法实施例包括：利用地球磁场对地层中的质子进行预极化; 利用多个原子磁强计获得NMR测量; 以及确定所述地层的至少一个特征弛豫时间。 NMR传感器可以可选地包括永磁体组件。

60. 发明授权

US08831885B2 Integrated radioactive source-free method and apparatus for porosity determination: NMR calibrated acoustic porosity 有权
标题翻译：用于孔隙度测定的无放射源综合方法和装置：NMR校准声孔隙度
公开(公告)号：US08831885B2
公开(公告)日：2014-09-09
申请号：US13267140
申请日：2011-10-06
申请人： Chun Lan , Songhua Chen , Fabio Brambilla
发明人： Chun Lan , Songhua Chen , Fabio Brambilla
IPC分类号： G01V3/38 , G01V1/40 , G01V3/18 , G01V9/00 , G01N24/08
CPC分类号： G01N24/081
摘要： NMR porosity measurements made in a gas free-formation are used to calibrate acoustic measurements. The calibration parameters are then used in conjunction with estimates of shale content to provide improved estimates of formation porosity in shaly intervals which may include a gas.
摘要翻译：使用无气体形成的NMR孔隙度测量来校准声学测量。然后将校准参数与页岩含量的估计结合使用，以提供可能包括气体的泥质间隔中的地层孔隙度的改进估计。

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