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1. 发明授权

US07305306B2 System and methods of deriving fluid properties of downhole fluids and uncertainty thereof 有权
标题翻译：导出井下流体流体特性的系统和方法及其不确定性
公开(公告)号：US07305306B2
公开(公告)日：2007-12-04
申请号：US11132545
申请日：2005-05-19
申请人： Lalitha Venkataramanan , Go Fujisawa , Bhavani Raghuraman , Oliver Mullins , Andrew Carnegie , Ricardo Vasques , Chengli Dong , Kai Hsu , Michael O'Keefe , Henri-Pierre Valero
发明人： Lalitha Venkataramanan , Go Fujisawa , Bhavani Raghuraman , Oliver Mullins , Andrew Carnegie , Ricardo Vasques , Chengli Dong , Kai Hsu , Michael O'Keefe , Henri-Pierre Valero
IPC分类号： G01V8/02
CPC分类号： E21B49/00
摘要： Methods and systems are provided for downhole analysis of formation fluids by deriving fluid properties and associated uncertainty in the predicted fluid properties based on downhole data, and generating answer products of interest based on differences in the fluid properties. Measured data are used to compute levels of contamination in downhole fluids using an oil-base mud contamination monitoring (OCM) algorithm. Fluid properties are predicted for the fluids and uncertainties in predicted fluid properties are derived. A statistical framework is provided for comparing the fluids to generate, in real-time, robust answer products relating to the formation fluids and reservoirs thereof. Systematic errors in measured data are reduced or eliminated by preferred sampling procedures.
摘要翻译：提供了方法和系统，用于通过基于井下数据导出预测流体特性的流体性质和相关不确定性，并基于流体性质的差异产生感兴趣的产品，从而对地层流体进行井下分析。测量数据用于使用油基泥浆污染监测（OCM）算法计算井下流体中的污染水平。预测流体的流体性质，并推导出预测的流体性质的不确定性。提供了一种统计框架，用于比较流体，实时地产生与地层流体及其储层相关的鲁棒答案产品。通过优选的采样程序减少或消除了测量数据中的系统误差。

2. 发明申请

US20060155474A1 System and methods of deriving fluid properties of downhole fluids and uncertainty thereof 有权
标题翻译：导出井下流体流体特性的系统和方法及其不确定性
公开(公告)号：US20060155474A1
公开(公告)日：2006-07-13
申请号：US11132545
申请日：2005-05-19
申请人： Lalitha Venkataramanan , Go Fujisawa , Bhavani Raghuraman , Oliver Mullins , Andrew Carnegie , Ricardo Vasques , Chengli Dong , Kai Hsu , Michael O'Keefe , Henri-Pierre Valero
发明人： Lalitha Venkataramanan , Go Fujisawa , Bhavani Raghuraman , Oliver Mullins , Andrew Carnegie , Ricardo Vasques , Chengli Dong , Kai Hsu , Michael O'Keefe , Henri-Pierre Valero
IPC分类号： G06F19/00
CPC分类号： E21B49/00
摘要： Methods and systems are provided for downhole analysis of formation fluids by deriving fluid properties and associated uncertainty in the predicted fluid properties based on downhole data, and generating answer products of interest based on differences in the fluid properties. Measured data are used to compute levels of contamination in downhole fluids using an oil-base mud contamination monitoring (OCM) algorithm. Fluid properties are predicted for the fluids and uncertainties in predicted fluid properties are derived. A statistical framework is provided for comparing the fluids to generate, in real-time, robust answer products relating to the formation fluids and reservoirs thereof. Systematic errors in measured data are reduced or eliminated by preferred sampling procedures.
摘要翻译：提供了方法和系统，用于通过基于井下数据导出预测流体特性的流体性质和相关不确定性，并基于流体性质的差异产生感兴趣的产品，从而对地层流体进行井下分析。测量数据用于使用油基泥浆污染监测（OCM）算法计算井下流体中的污染水平。预测流体的流体性质，并推导出预测的流体性质的不确定性。提供了一种统计框架，用于比较流体，实时地产生与地层流体及其储层相关的鲁棒答案产品。通过优选的采样程序减少或消除了测量数据中的系统误差。

3. 发明授权

US07644611B2 Downhole fluid analysis for production logging 有权
标题翻译：井下流体分析用于生产测井
公开(公告)号：US07644611B2
公开(公告)日：2010-01-12
申请号：US11854551
申请日：2007-09-13
申请人： Akira Kamiya , Gary Oddie , Stephane Vannuffelen , Tsutomu Yamate , Oliver C. Mullins , Bhavani Raghuraman , Albert Ballard Andrews , Andrew Carnegie , Chengli Dong , Marian Faur , Christopher Harrison , Kentaro Indo , Li Jiang , Michael O'Keefe
发明人： Akira Kamiya , Gary Oddie , Stephane Vannuffelen , Tsutomu Yamate , Oliver C. Mullins , Bhavani Raghuraman , Albert Ballard Andrews , Andrew Carnegie , Chengli Dong , Marian Faur , Christopher Harrison , Kentaro Indo , Li Jiang , Michael O'Keefe
IPC分类号： E21B49/08
CPC分类号： E21B43/38 , E21B49/081 , E21B49/087
摘要： A downhole fluid analysis tool capable of fluid analysis during production logging that includes a phase separator and a plurality of sensors to perform analysis on the fluids collected at a subsurface location in a borehole.
摘要翻译：一种井下流体分析工具，其能够在生产测井期间进行流体分析，其包括相分离器和多个传感器，以对在钻孔中的地下位置处收集的流体进行分析。

4. 发明授权

US08024125B2 Methods and apparatus to monitor contamination levels in a formation fluid 有权
标题翻译：监测地层流体污染水平的方法和装置
公开(公告)号：US08024125B2
公开(公告)日：2011-09-20
申请号：US12362602
申请日：2009-01-30
申请人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
发明人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
IPC分类号： G01V8/00 , E21B49/08
CPC分类号： G01N21/5907 , E21B49/10 , E21B2049/085 , G01N21/8507 , G01N21/94 , G01N2021/3129
摘要： Apparatus and methods to monitor contamination levels in a formation fluid are disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.
摘要翻译：公开了一种用于监测地层流体中污染水平的装置和方法。示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

5. 发明授权

US07711488B2 Methods and apparatus to monitor contamination levels in a formation fluid 有权
标题翻译：监测地层流体污染水平的方法和装置
公开(公告)号：US07711488B2
公开(公告)日：2010-05-04
申请号：US11764284
申请日：2007-06-18
申请人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
发明人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
IPC分类号： G01V8/00 , G01N21/00 , E21B49/08
CPC分类号： G01N21/5907 , E21B49/10 , E21B2049/085 , G01N21/8507 , G01N21/94 , G01N2021/3129
摘要： Apparatus and methods to monitor contamination levels in a formation fluid arc disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.
摘要翻译：公开了用于监测地层流体中的污染水平的装置和方法。示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

6. 发明申请

US20090150079A1 METHODS AND APPARATUS TO MONITOR CONTAMINATION LEVELS IN A FORMATION FLUID 有权
标题翻译：监测污染物形成流体的方法和装置
公开(公告)号：US20090150079A1
公开(公告)日：2009-06-11
申请号：US12362602
申请日：2009-01-30
申请人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
发明人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
IPC分类号： G01V9/00 , E21B47/00
CPC分类号： G01N21/5907 , E21B49/10 , E21B2049/085 , G01N21/8507 , G01N21/94 , G01N2021/3129
摘要： Apparatus and methods to monitor contamination levels in a formation fluid are disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.
摘要翻译：公开了一种用于监测地层流体中污染水平的装置和方法。示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

7. 发明申请

US20080156088A1 Methods and Apparatus to Monitor Contamination Levels in a Formation Fluid 有权
标题翻译：监测地层液体污染水平的方法和装置
公开(公告)号：US20080156088A1
公开(公告)日：2008-07-03
申请号：US11764284
申请日：2007-06-18
申请人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
发明人： Kai Hsu , Peter S. Hegeman , Chengli Dong , Ricardo Vasques
IPC分类号： G01V9/00 , G01V8/00
CPC分类号： G01N21/5907 , E21B49/10 , E21B2049/085 , G01N21/8507 , G01N21/94 , G01N2021/3129
摘要： Apparatus and methods to monitor contamination levels in a formation fluid arc disclosed. An example method involves obtaining first property data indicative of a first fluid property of a formation fluid and second property data indicative of a second fluid property of the formation fluid. A correlation between the first and second property data is generated and third data is fitted to the correlation. A fitting parameter is determined based on the third data indicative of an amount of change of the first property data relative to an amount of change of the second property data.
摘要翻译：公开了用于监测地层流体中的污染水平的装置和方法。示例性方法包括获得指示地层流体的第一流体特性的第一属性数据和指示地层流体的第二流体性质的第二特性数据。生成第一和第二属性数据之间的相关性，并且将第三数据拟合到相关性。基于指示第一属性数据相对于第二属性数据的变化量的变化量的第三数据来确定拟合参数。

8. 发明申请

US20050067562A1 Determining phase transition pressure of downhole retrograde condensate 有权
标题翻译：确定井下逆行冷凝水的相变压力
公开(公告)号：US20050067562A1
公开(公告)日：2005-03-31
申请号：US10670615
申请日：2003-09-25
申请人： Chengli Dong , Soraya Betancourt , Go Fujisawa , Oliver Mullins , James Dunlap
发明人： Chengli Dong , Soraya Betancourt , Go Fujisawa , Oliver Mullins , James Dunlap
IPC分类号： G01V8/02 , G01V8/00
CPC分类号： G01V8/02
摘要： The invention provides a method for determining phase transition pressure of downhole retrograde condensate. An OBM-contamination value is produced from a time-series of fluorescence values produced by measuring fluorescence emitted from a single-phase flow of OBM-contaminated formation fluid in a downhole cell during a cycle of time. The pressure of fluid in the cell is set at a transition boundary by incrementing drawdown pressure and monitoring the presence or absence of a phase transition. An apparent phase transition pressure value associated with the cycle of time is produced by setting apparent phase transition pressure value equal to cell pressure. This process is repeated for several cycles of time to produce a number of pairs of OBM-contamination value and apparent phase transition pressure value as OBM-contamination decreases over time. The value of phase transition pressure is determined by extrapolating from a representation of apparent phase transition pressure values versus OBM-contamination values.
摘要翻译：本发明提供一种确定井下逆行冷凝物相变压力的方法。 OBM污染值是通过在一段时间内通过测量从井下孔中的OBM污染的地层流体的单相流发射的荧光产生的时间序列产生的。通过增加压降压力并监测相变的存在或不存在，将电池中的流体压力设定在过渡边界。通过将表观相变压力值设置为等于电池压力来产生与时间周期相关的表观相变压力值。该过程重复几个周期，以产生多个OBM污染值和表观相变压力值对，因为OBM污染随时间而减少。通过从表观相变压力值与OBM污染值的表示进行外推来确定相变压力的值。

9. 发明申请

US20110061439A1 METHODS OF CALIBRATING A FLUID ANALYZER FOR USE IN A WELLBORE 有权
标题翻译：用于在井筒中使用的流体分析仪的方法
公开(公告)号：US20110061439A1
公开(公告)日：2011-03-17
申请号：US12666309
申请日：2008-07-03
申请人： Chengli Dong , Ricardo R. Vasques , Michael O'Keefe , Peter S. Hegeman , Oliver C. Mullins , Go Fujisawa , Stephane Vannuffelen , Richard Jackson , Ahmad Saputra
发明人： Chengli Dong , Ricardo R. Vasques , Michael O'Keefe , Peter S. Hegeman , Oliver C. Mullins , Go Fujisawa , Stephane Vannuffelen , Richard Jackson , Ahmad Saputra
IPC分类号： G01N33/00
CPC分类号： E21B49/08 , G01N33/2823 , G01N35/00693
摘要： Methods of calibrating a fluid analyzer for use in a wellbore are described. An example method of generating calibration data for a fluid analyzer for use in a downhole tool involves lowering a downhole tool including a fluid analyzer to a location in a wellbore, measuring, via the fluid analyzer, a characteristic value of a calibration fluid or a vacuum while the fluid analyzer is at the location, obtaining an expected characteristic value for the calibration fluid or the vacuum at the location, and comparing the measured characteristic value to the expected characteristic value to generate a calibration value for the fluid.
摘要翻译：描述了用于在井筒中使用的流体分析仪的校准方法。生成用于井下工具的流体分析仪的校准数据的示例性方法包括将包括流体分析仪的井下工具降低到井眼中的位置，通过流体分析仪测量校准流体或真空的特征值同时流体分析仪位于该位置，获得校准流体的预期特征值或该位置处的真空，并将测量的特征值与预期特征值进行比较以产生流体的校准值。

10. 发明授权

US08555696B2 Methods of calibrating a fluid analyzer for use in a wellbore 有权
标题翻译：校准用于井眼的流体分析仪的方法
公开(公告)号：US08555696B2
公开(公告)日：2013-10-15
申请号：US12666309
申请日：2008-07-03
申请人： Chengli Dong , Ricardo R. Vasques , Michael O'Keefe , Peter S. Hegeman , Oliver C. Mullins , Go Fujisawa , Stephane Vannuffelen , Richard Jackson , Ahmad Saputra
发明人： Chengli Dong , Ricardo R. Vasques , Michael O'Keefe , Peter S. Hegeman , Oliver C. Mullins , Go Fujisawa , Stephane Vannuffelen , Richard Jackson , Ahmad Saputra
IPC分类号： G01N21/00
CPC分类号： E21B49/08 , G01N33/2823 , G01N35/00693
摘要： Methods of calibrating a fluid analyzer for use in a wellbore are described. An example method of generating calibration data for a fluid analyzer for use in a downhole tool involves lowering a downhole tool including a fluid analyzer to a location in a wellbore, measuring, via the fluid analyzer, a characteristic value of a calibration fluid or a vacuum while the fluid analyzer is at the location, obtaining an expected characteristic value for the calibration fluid or the vacuum at the location, and comparing the measured characteristic value to the expected characteristic value to generate a calibration value for the fluid.
摘要翻译：描述了用于在井筒中使用的流体分析仪的校准方法。生成用于井下工具的流体分析仪的校准数据的示例性方法包括将包括流体分析仪的井下工具降低到井眼中的位置，通过流体分析仪测量校准流体或真空的特征值同时流体分析仪位于该位置，获得校准流体的预期特征值或该位置处的真空，并将测量的特征值与预期特征值进行比较以产生流体的校准值。

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