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。

公开(公告)号：US07013217B2

公开(公告)日：2006-03-14

申请号：US10604034

申请日：2003-06-23

申请人： Kai Hsu ,  Dominique Dion

发明人： Kai Hsu ,  Dominique Dion

IPC分类号： G01V1/40 ,  G01V1/00

CPC分类号： G01V1/48

摘要： The invention provides techniques for calculating velocity from sonic signals with an improved signal to noise ratio, accuracy and certainty of result. Multichannel coherence measures are calculated from sonic transmitter signals and averaged to produce an average coherence measure. The formation slowness is determined from the averaged coherence measure.

摘要翻译： 本发明提供了用于从声音信号计算速度的技术，其具有改善的信噪比，准确性和结果的确定性。 多声道相干测量由声发射机信号计算并平均以产生平均相干测量。 从平均相干性测量值确定形成缓慢。

公开(公告)号：US08434357B2

公开(公告)日：2013-05-07

申请号：US12543042

申请日：2009-08-18

申请人： Kai Hsu ,  Kentaro Indo ,  Sihar Marpaung ,  Kazumasa Kanayama ,  Peter S. Hegeman

发明人： Kai Hsu ,  Kentaro Indo ,  Sihar Marpaung ,  Kazumasa Kanayama ,  Peter S. Hegeman

IPC分类号： E21B49/10

CPC分类号： E21B49/08 ,  E21B47/102 ,  E21B2049/085

摘要： A system and method for obtaining a clean fluid sample for analysis in a downhole tool are provided. In one example, the method includes directing fluid from a main flowline of the downhole tool to a secondary flowline of the downhole tool. While the fluid is being directed into the secondary flowline, sensor responses corresponding to the fluid in the secondary flowline are monitored to determine when the sensor responses stabilize. The secondary flowline is isolated from the main flowline after the sensor responses have stabilized. A quality control procedure is performed on the fluid in the secondary flowline to determine whether the captured fluid is the same as the fluid in the main flowline. Additional fluid from the main flowline is allowed into the secondary flowline if the captured fluid is not the same.

摘要翻译： 提供了一种用于在井下工具中获得用于分析的清洁流体样本的系统和方法。 在一个示例中，该方法包括将流体从井下工具的主流线引导到井下工具的次流线。 当流体被引导到二次流线中时，监测对应于次流线中的流体的传感器响应，以确定传感器响应何时稳定。 在传感器响应稳定后，二次流线与主流线隔离。 对二次流线中的流体执行质量控制程序，以确定捕获的流体是否与主流线中的流体相同。 如果捕获的流体不相同，来自主流线的附加流体被允许进入二次流线。

公开(公告)号：US08166812B2

公开(公告)日：2012-05-01

申请号：US12578587

申请日：2009-10-14

申请人： Emmanuel Desroques ,  Sophie Nazik Godefroy ,  Anthony Robert Holmes Goodwin ,  Christopher Harrison ,  Kai Hsu ,  Noriyuki Matsumoto

发明人： Emmanuel Desroques ,  Sophie Nazik Godefroy ,  Anthony Robert Holmes Goodwin ,  Christopher Harrison ,  Kai Hsu ,  Noriyuki Matsumoto

IPC分类号： E21B49/08 ,  G01N11/10 ,  G01N29/00

CPC分类号： G01N11/16 ,  E21B2049/085

摘要： Vibrating wire viscometers are disclosed. An example apparatus to determine the viscosity of a downhole fluid is described, the apparatus including a wire to be immersed in a downhole fluid, to vibrate when an alternating current is applied to the wire within a magnetic field, and to generate an electromotive force when vibrating within the magnetic field, the wire comprising a first resistance. The apparatus further includes a nulling circuit coupled to the wire, wherein the nulling circuit comprises a second resistance that is selectable to be substantially equal to the first resistance, and an analyzer coupled to the wire and the nulling circuit to determine the first resistance, the second resistance, and a viscosity of the downhole fluid based on the first and second resistances, at least one characteristic of the wire, and the electromotive force.

摘要翻译： 公开了振动丝粘度计。 描述了一种用于确定井下流体的粘度的示例性装置，该装置包括要浸入井下流体中的线，以在交变电流施加到磁场内的线时振动，并产生电动势， 在磁场内振动，线包括第一电阻。 所述装置还包括耦合到所述导线的归零电路，其中所述归零电路包括可选择为基本上等于所述第一电阻的第二电阻，以及耦合到所述导线和所述归零电路以确定所述第一电阻的分析器， 第二阻力和基于第一和第二电阻的井下流体的粘度，线的至少一个特性和电动势。

公开(公告)号：US20110042070A1

公开(公告)日：2011-02-24

申请号：US12543017

申请日：2009-08-18

申请人： Kai Hsu ,  Kentaro Indo ,  Oliver C. Mullins ,  Peter S. Hegeman

发明人： Kai Hsu ,  Kentaro Indo ,  Oliver C. Mullins ,  Peter S. Hegeman

IPC分类号： E21B49/08 ,  E21B47/00 ,  G06F19/00

CPC分类号： E21B49/087 ,  E21B47/102 ,  E21B49/08 ,  E21B2049/085

摘要： A system and method for determining at least one fluid characteristic of a downhole fluid sample using a downhole tool are provided. In one example, the method includes performing a calibration process that correlates optical and density sensor measurements of a fluid sample in a downhole tool at a plurality of pressures. The calibration process is performed while the fluid sample is not being agitated. At least one unknown value of a density calculation is determined based on the correlated optical sensor measurements and density sensor measurements. A second optical sensor measurement of the fluid sample is obtained while the fluid sample is being agitated. A density of the fluid sample is calculated based on the second optical sensor measurement and the at least one unknown value.

摘要翻译： 提供了一种用于使用井下工具确定井下流体样品的至少一种流体特性的系统和方法。 在一个示例中，该方法包括执行校准过程，其将多个压力下的井下工具中的流体样品的光学和密度传感器测量值相关联。 校准过程在流体样品未被搅动时进行。 基于相关的光学传感器测量和密度传感器测量确定密度计算的至少一个未知值。 在流体样品被搅动的同时获得液体样品的第二光学传感器测量。 基于第二光学传感器测量和至少一个未知值计算流体样本的密度。

公开(公告)号：US20090120171A1

公开(公告)日：2009-05-14

申请号：US11937035

申请日：2007-11-08

申请人： Christopher Harrison ,  Isabelle Etchart ,  Kai Hsu ,  Jacques Jundt ,  Anthony Robert Holmes Goodwin ,  Sophie Godefroy ,  Matthew Sullivan ,  Antoine Fornari

发明人： Christopher Harrison ,  Isabelle Etchart ,  Kai Hsu ,  Jacques Jundt ,  Anthony Robert Holmes Goodwin ,  Sophie Godefroy ,  Matthew Sullivan ,  Antoine Fornari

IPC分类号： G01N29/02

CPC分类号： G01N29/036 ,  G01N11/16 ,  G01N29/222 ,  G01N29/4418 ,  G01N33/28 ,  G01N2291/015 ,  G01N2291/02818

摘要： A method and apparatus for providing, e.g., identifying or determining, at least one parameter of a fluid moving through a fluid channel using a vibrating wire in contact with the fluid moving through the fluid channel that is clamped under tension. The vibrating wire is actuated by an actuating device capable of displacing the vibrating wire from an initial position. An interpretation element further is utilized to provide a parameter of the fluid moving through the fluid channel based upon data from the vibrating wire following actuation by the actuation element.

摘要翻译： 一种用于提供例如识别或确定通过流体通道移动的流体的至少一个参数的方法和装置，所述参数使用与通过在张力下被夹持的流体通道移动的流体相接触的振弦。 振动线由能够将振弦从初始位置移位的致动装置致动。 解释元件还被用于基于由致动元件致动之后的来自振弦的数据来提供流过流体通道的流体的参数。

公开(公告)号：US20070119244A1

公开(公告)日：2007-05-31

申请号：US11615381

申请日：2006-12-22

申请人： Anthony Goodwin ,  Pete Hegeman ,  Kai Hsu ,  Chengli Dong

发明人： Anthony Goodwin ,  Pete Hegeman ,  Kai Hsu ,  Chengli Dong

IPC分类号： E21B49/08

CPC分类号： E21B47/10 ,  E21B49/08 ,  E21B49/10 ,  G01N1/12 ,  G01N7/00 ,  G01N9/36 ,  G01N25/04 ,  G01N33/2823

摘要： Methods and apparatus for investigating a hydrocarbon bearing geological formation traversed by a borehole are disclosed. An example method to characterize a fluid associated with an underground geological formation obtains a sample of the fluid associated with the underground geological formation. The example method measures, in a borehole associated with the underground geological formation, a chemical composition and a thermophysical property of the sample of the fluid. The example method selects a mathematical model to represent the sample of the fluid based on at least one of the chemical composition or the thermophysical property and adjusts a parameter of the mathematical model based on at least one of the chemical composition or the thermophysical property to generate an adjusted mathematical model. The example method then determines a property of the fluid associated with the underground geological formation based on the adjusted mathematical model.

摘要翻译： 公开了用于研究由钻孔穿过的含烃地质地层的方法和装置。 用于表征与地下地质构造有关的流体的示例性方法获得与地下地质构造相关联的流体的样本。 示例性方法在与地下地质构造相关的钻孔中测量流体样品的化学成分和热物理性质。 该示例性方法基于化学组成或热物理性质中的至少一个选择数学模型来表示流体的样本，并且基于化学组成或热物理性质中的至少一个来调整数学模型的参数以产生 一个调整后的数学模型。 然后，示例性方法基于经调整的数学模型确定与地下地质构造相关联的流体的性质。

公开(公告)号：US20060137873A1

公开(公告)日：2006-06-29

申请号：US11021849

申请日：2004-12-23

申请人： Derek Caudwell ,  Anthony Goodwin ,  Martin Trusler ,  Michael Frels ,  Kai Hsu ,  Jonathan Brown ,  Julian Pop ,  Bunker Hill ,  Andrew Kurkjian

发明人： Derek Caudwell ,  Anthony Goodwin ,  Martin Trusler ,  Michael Frels ,  Kai Hsu ,  Jonathan Brown ,  Julian Pop ,  Bunker Hill ,  Andrew Kurkjian

IPC分类号： E21B49/08

CPC分类号： G01N11/16 ,  E21B49/10

摘要： A viscometer for a down hole tool positionable in a well bore penetrating a subterranean formation is described. The formation contains at least one fluid therein. The down hole tool is adapted to convey at least a portion of the fluid to the viscometer. The viscometer comprises a sensor unit, and at least one magnet. The sensor unit is positionable within the down hole tool and comprises at least two spatially disposed clamps and a wire suspended in tension between the at least two clamps such that the wire is available for interaction with the fluid when the viscometer is positioned within the down hole tool and the down hole tool is positioned within the subterranean formation and receives the fluid from the subterranean formation.

摘要翻译： 描述了一种位于穿透地层的井眼中的井下工具的粘度计。 地层中含有至少一种流体。 井下工具适于将至少一部分流体输送到粘度计。 粘度计包括传感器单元和至少一个磁体。 传感器单元可定位在井下工具内，并且包括至少两个空间设置的夹具和在至少两个夹子之间张紧地悬挂的线材，使得当粘度计位于下孔内时，该线材可用于与流体相互作用 工具，井下工具位于地下地层内并从地下地层接收流体。

公开(公告)号：US5796677A

公开(公告)日：1998-08-18

申请号：US235625

申请日：1994-04-29

申请人： Sergio Kostek ,  Shu-Kong Chang ,  Gordon McDaniel ,  Thomas Plona ,  Curtis Randall ,  Jean-Pierre Masson ,  James C. Mayes ,  Kai Hsu

发明人： Sergio Kostek ,  Shu-Kong Chang ,  Gordon McDaniel ,  Thomas Plona ,  Curtis Randall ,  Jean-Pierre Masson ,  James C. Mayes ,  Kai Hsu

IPC分类号： G01V1/48 ,  G01V1/50 ,  G01V1/52 ,  G01V1/40

CPC分类号： G01V1/50 ,  G01V1/48 ,  G01V1/52

摘要： The present invention is directed to sonic logging while drilling. A transmitter and at least one receiver are mounted on a drill collar for performing sonic investigations of the formation traversed by a borehole. It has been discovered that a drill collar has a natural stop band or notch where acoustic energy propagating in this frequency range is severely attenuated. Thus, to reduce drill collar acoustic coupling, the transmitter is operated within this natural stop band of the drill collar. An imperforate stop band filter is also included between the transmitter and receiver to enhance the natural stop band. The transmitter is mounted transverse to the longitudinal axis of the drill collar, and is preferably mounted within means that reduce drill collar acoustic coupling. The transmitter preferably includes a material whose acoustic response is more favorable along its longitudinal axis relative to its radial axis, thereby directing the acoustic energy into the formation rather than the surrounding drill collar. Received acoustic energy waveforms are electronically processed to reliably detect, in the presence of drilling noise, those acoustic signals which are produced by the transmitter and transmitted through the formation.

摘要翻译： 本发明涉及在钻探时的声波测井。 发射器和至少一个接收器安装在钻铤上，用于对由钻孔穿过的地层进行声波研究。 已经发现钻铤具有自然的阻挡带或凹口，其中在该频率范围内传播的声能被严重衰减。 因此，为了减少钻铤声耦合，变送器在钻铤的这个自然停止带内操作。 发射器和接收器之间还包括一个无孔挡板滤波器，以增强自然阻挡带。 发射器横向于钻铤的纵向轴线安装，并且优选地安装在减少钻铤声耦合的装置内。 发射器优选地包括其声响应相对于其径向轴线沿其纵向轴线更有利的材料，从而将声能引导到地层而不是周围的钻铤。 接收到的声能波形被电子处理，以便在存在钻井噪声的情况下可靠地检测由发射机产生并通过地层传输的那些声信号。

公开(公告)号：US09275009B2

公开(公告)日：2016-03-01

申请号：US13596996

申请日：2012-08-28

申请人： Kai Hsu ,  Kentaro Indo ,  Sihar Marpaung ,  Peter S. Hegeman ,  Michael Toribio

发明人： Kai Hsu ,  Kentaro Indo ,  Sihar Marpaung ,  Peter S. Hegeman ,  Michael Toribio

IPC分类号： G06F17/00 ,  G01V13/00 ,  G01N33/28 ,  G01N7/16

CPC分类号： G06F17/00 ,  G01N7/16 ,  G01N33/2823 ,  G01V13/00

摘要： Variable volume systems and methods of use thereof described herein are capable of making calibrated determinations of fluid properties and phase behavior of a fluid sample. The determinations can be calibrated based on one or more calibration functions, such as system volume corrected for pressure and temperature variations. Cross-checking the results of measurements can be used to determine accuracy of the calibration or monitor for leaks or other anomalies of the variable volume systems. The variable volume systems can be implemented in a well logging tool and are capable of being calibrated downhole.

摘要翻译： 本文所述的可变体积系统及其使用方法能够对流体性质和流体样品的相位行为进行校准测定。 可以基于一个或多个校准功能来校准测定值，例如校正压力和温度变化的系统体积。 交叉检查测量结果可用于确定校准或监视器对可变体积系统的泄漏或其他异常的准确性。 可变容积系统可以在测井工具中实现，并且能够在井下校准。