公开(公告)号：US08028562B2

公开(公告)日：2011-10-04

申请号：US11958049

申请日：2007-12-17

申请人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

发明人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

IPC分类号： G01N30/02

CPC分类号： G01N33/2823 ,  E21B47/10 ,  G01N30/22 ,  G01N30/32 ,  G01N30/88 ,  G01N2030/8809 ,  G01N2030/8854

摘要： Methods and related systems are described for high pressure chromatographic analysis. The described system includes a flowpath adapted to flow a mobile phase and the sample at high pressures, an injector adapted to inject the fluid sample into a flowpath, a separation column adapted to operate at high pressures for separating various components, a detector and a processor that calculates the amount of at least one component of the fluid sample. The system can operate a pressures above 20 atm or even 100 atm, and temperatures above about 100 degrees Celsius. The system can deployed in a wellbore in a subterranean rock formation, and include fluid collection system for obtaining the fluid sample downhole. The system can also be located close to a wellhead and includes a tap in fluid communication with a surface flowline carrying produced fluids and the injector.

摘要翻译： 描述了用于高压色谱分析的方法和相关系统。 所描述的系统包括适于流动流动相和高压下的样品的流路，适于将流体样品注入流路的注射器，适于在高压下操作以分离各种组分的分离柱，检测器和处理器 其计算流体样品的至少一个组分的量。 该系统可以操作压力高于20atm，甚至100 atm，温度高于约100摄氏度。 该系统可以部署在地下岩层中的井眼中，并且包括用于在井下获得流体样品的流体收集系统。 该系统还可以靠近井口定位，并且包括与携带产生的流体的表面流线和喷射器流体连通的龙头。

公开(公告)号：US20110111507A1

公开(公告)日：2011-05-12

申请号：US13009405

申请日：2011-01-19

申请人： Li Jiang ,  Oliver C. Mullins ,  Gale H. Gustavson ,  Christopher Harrison ,  Bhavani Raghuraman ,  Ronald E.G. Van Hal ,  Jimmy Lawrence ,  Kosta Ladavac ,  A. Ballard Andrews ,  Timothy Gareth John Jones ,  Rogerio Tadeu Ramos

发明人： Li Jiang ,  Oliver C. Mullins ,  Gale H. Gustavson ,  Christopher Harrison ,  Bhavani Raghuraman ,  Ronald E.G. Van Hal ,  Jimmy Lawrence ,  Kosta Ladavac ,  A. Ballard Andrews ,  Timothy Gareth John Jones ,  Rogerio Tadeu Ramos

IPC分类号： G01N33/24

CPC分类号： G01N31/224 ,  C09K8/52 ,  C09K2208/20 ,  E21B49/08 ,  G01N21/77 ,  G01N21/78 ,  G01N2021/7763 ,  G01N2021/7773 ,  G01N2021/7786

摘要： Methods and related apparatuses and mixtures are described for detecting hydrogen sulfide in a formation fluid downhole. A detection mixture is combined with the formation fluid downhole. The detection mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and charged nanoparticles sized so as to inhibit significant aggregation of the metal sulfide so as to enable spectroscopic detection of the metal sulfide downhole. The combined mixture and formation fluid is then spectroscopically interrogated so as to detect the presence of the metal sulfide thereby indicating the presence of hydrogen sulfide in the formation fluid. The mixture also includes chelating ligands for sustaining thermal endurance of the mixture under downhole conditions.

公开(公告)号：US20110104809A1

公开(公告)日：2011-05-05

申请号：US13009424

申请日：2011-01-19

申请人： Li Jiang ,  Oliver C. Mullins ,  Gale H. Gustavson ,  Christopher Harrison ,  Bhavani Raghuraman ,  Ronald E.G. Van Hal ,  Jimmy Lawrence ,  Kosta Ladavac ,  A. Ballard Andrews ,  Timothy Gareth John Jones ,  Rogerio Tadeu Ramos

发明人： Li Jiang ,  Oliver C. Mullins ,  Gale H. Gustavson ,  Christopher Harrison ,  Bhavani Raghuraman ,  Ronald E.G. Van Hal ,  Jimmy Lawrence ,  Kosta Ladavac ,  A. Ballard Andrews ,  Timothy Gareth John Jones ,  Rogerio Tadeu Ramos

IPC分类号： G01N33/24

CPC分类号： G01N31/224 ,  C09K8/52 ,  C09K2208/20 ,  E21B49/08 ,  G01N21/77 ,  G01N21/78 ,  G01N2021/7763 ,  G01N2021/7773 ,  G01N2021/7786

摘要： Methods and related apparatuses and mixtures are described for detecting hydrogen sulfide in a formation fluid downhole. A detection mixture is combined with the formation fluid downhole. The detection mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and charged nanoparticles sized so as to inhibit significant aggregation of the metal sulfide so as to enable spectroscopic detection of the metal sulfide downhole. The combined mixture and formation fluid is then spectroscopically interrogated so as to detect the presence of the metal sulfide thereby indicating the presence of hydrogen sulfide in the formation fluid. The mixture also includes chelating ligands for sustaining thermal endurance of the mixture under downhole conditions.

摘要翻译： 描述了用于检测井下地层流体中的硫化氢的方法和相关装置和混合物。 检测混合物与井下的地层流体结合。 该检测混合物包括与形成金属硫化物的硫化氢反应的金属离子，以及带电的纳米粒子尺寸以抑制金属硫化物的显着聚集，从而能够对井下金属硫化物进行光谱检测。 然后用光谱询问合并的混合物和地层流体，以便检测金属硫化物的存在，从而指示地层流体中存在硫化氢。 混合物还包括螯合配体，用于在井下条件下维持混合物的耐热性。

公开(公告)号：US07886825B2

公开(公告)日：2011-02-15

申请号：US11562908

申请日：2006-11-22

申请人： Ronald E. G. Van Hal ,  Anthony Goodwin ,  Oliver C. Mullins ,  Peter S. Hegeman ,  Bhavani Raghuraman ,  Soraya S. Betancourt ,  Cosan Ayan ,  Ricardo Vasques ,  Francois Xavier Dubost ,  Christopher Scott Del Campo

发明人： Ronald E. G. Van Hal ,  Anthony Goodwin ,  Oliver C. Mullins ,  Peter S. Hegeman ,  Bhavani Raghuraman ,  Soraya S. Betancourt ,  Cosan Ayan ,  Ricardo Vasques ,  Francois Xavier Dubost ,  Christopher Scott Del Campo

IPC分类号： E21B43/24

CPC分类号： E21B49/10 ,  E21B36/008

摘要： A formation fluid sampling tool is provided with reactants which are carried downhole and which are combined in order to generate heat energy which is applied to the formation adjacent the borehole. By applying heat energy to the formation, the formation fluids are heated, thereby increasing mobility, and fluid sampling is expedited.

摘要翻译： 地层流体采样工具提供有反应物，其被运送到井下并且被组合以产生施加到邻近钻孔的地层的热能。 通过向地层施加热能，加热地层流体，从而增加流动性，并加速流体取样。

公开(公告)号：US20090151426A1

公开(公告)日：2009-06-18

申请号：US11958049

申请日：2007-12-17

申请人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

发明人： Jagdish Shah ,  Neil William Bostrom ,  Oleg Zhdaneev ,  Bhavani Raghuraman ,  Kristofer Gunnar Paso

IPC分类号： G01N30/02

CPC分类号： G01N33/2823 ,  E21B47/10 ,  G01N30/22 ,  G01N30/32 ,  G01N30/88 ,  G01N2030/8809 ,  G01N2030/8854

摘要： Methods and related systems are described for high pressure chromatographic analysis. The described system includes a flowpath adapted to flow a mobile phase and the sample at high pressures, an injector adapted to inject the fluid sample into a flowpath, a separation column adapted to operate at high pressures for separating various components, a detector and a processor that calculates the amount of at least one component of the fluid sample. The system can operate a pressures above 20 atm or even 100 atm, and temperatures above about 100 degrees Celsius. The system can deployed in a wellbore in a subterranean rock formation, and include fluid collection system for obtaining the fluid sample downhole. The system can also be located close to a wellhead and includes a tap in fluid communication with a surface flowline carrying produced fluids and the injector.

摘要翻译： 描述了用于高压色谱分析的方法和相关系统。 所描述的系统包括适于流动流动相和高压下的样品的流路，适于将流体样品注入流路的注射器，适于在高压下操作以分离各种组分的分离柱，检测器和处理器 其计算流体样品的至少一个组分的量。 该系统可以操作压力高于20atm，甚至100 atm，温度高于约100摄氏度。 该系统可以部署在地下岩层中的井眼中，并且包括用于在井下获得流体样品的流体收集系统。 该系统还可以靠近井口定位，并且包括与携带产生的流体的表面流线和喷射器流体连通的龙头。

公开(公告)号：US20090084175A1

公开(公告)日：2009-04-02

申请号：US12201588

申请日：2008-08-29

申请人： Bhavani Raghuraman ,  Gale H. Gustavson ,  Emilie Dressaire ,  Oleg Zhdaneev ,  Ronald Van Hal ,  Oliver Mullins ,  Philippe Salamitou

发明人： Bhavani Raghuraman ,  Gale H. Gustavson ,  Emilie Dressaire ,  Oleg Zhdaneev ,  Ronald Van Hal ,  Oliver Mullins ,  Philippe Salamitou

IPC分类号： E21B47/00 ,  G01J3/00

CPC分类号： E21B47/1015 ,  E21B49/08 ,  G01N33/18

摘要： An indicator mixture that allows pH measurement over a broader range of pH or to a higher accuracy than available using conventional spectroscopic techniques. In particular, the mixture of the present invention is comprised of two or more reagents such that when combined, the reagent mixture is capable of either detecting: (1) a pH range broader or more accurate than that the reagents individually, or (2) pH more accurately than the reagents individually. Also disclosed are methods of making and using the mixture.

摘要翻译： 一种指示剂混合物，允许在更广泛的pH范围内进行pH测量或比使用常规光谱技术可获得更高的精度。 特别地，本发明的混合物由两种或更多种试剂组成，使得当组合时，试剂混合物能够检测：（1）比单独的试剂更广泛或更准确的pH范围，或（2） pH比试剂单独地更准确。 还公开了制备和使用该混合物的方法。

公开(公告)号：US07512543B2

公开(公告)日：2009-03-31

申请号：US10328212

申请日：2002-12-23

申请人： Bhavani Raghuraman ,  Benoit Couet

发明人： Bhavani Raghuraman ,  Benoit Couet

IPC分类号： G06F9/44 ,  G06F7/60 ,  G06G7/48

CPC分类号： G06Q40/08 ,  G01V11/00 ,  G06Q10/0635 ,  G06Q10/0637 ,  G06Q10/06375

摘要： The present invention discloses a method for performing a stochastic analysis of one or more hydrocarbon reservoir exploitation strategies taking into consideration one or more uncertain parameters. The method optimizes an objective function that considers the gain in value of a reservoir management goal attributable to these exploitation strategies. The methodology may be used to decide whether or not to implement a strategy. Alternatively, it may be used to decide which competing strategy will yield the maximum benefit. In another embodiment of the present invention, the value of information obtained from the installation of additional sensors or new measurements is also considered.

摘要翻译： 本发明公开了一种考虑一个或多个不确定参数来执行一个或多个烃储层开采策略的随机分析的方法。 该方法优化了一个目标函数，该目标函数考虑了这些开发策略所引起的水库管理目标的价值增益。 该方法可用于决定是否实施战略。 或者，它可以用于决定哪种竞争策略将产生最大的收益。 在本发明的另一个实施例中，还考虑了从安装附加传感器或新测量获得的信息的值。

公开(公告)号：US07233150B2

公开(公告)日：2007-06-19

申请号：US10871856

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： G01V3/04 ,  G01V3/22 ,  G01V3/00

CPC分类号： G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

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。

公开(公告)号：US20050279497A1

公开(公告)日：2005-12-22

申请号：US10871446

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael Supp ,  Jose Navarro

IPC分类号： E21B47/00 ,  E21B47/10 ,  E21B49/08 ,  G01V3/26

CPC分类号： G01V3/265 ,  E21B47/102 ,  E21B49/08

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。