公开(公告)号：US20110083842A1

公开(公告)日：2011-04-14

申请号：US12578425

申请日：2009-10-13

申请人： Kentaro Indo ,  Kai Hsu

发明人： Kentaro Indo ,  Kai Hsu

IPC分类号： E21B47/00 ,  G06F19/00

CPC分类号： G01N33/2823 ,  E21B49/10 ,  E21B2049/085 ,  G01N21/534

摘要： A method (and corresponding apparatus) for downhole fluid analysis of petroleum formation fluids. The method includes capturing in a chamber of a downhole tool at least two immiscible formation fluids in a generally segregated state (the fluids including petroleum), activating a fluid mixing means to mix the fluids in the chamber to create an emulsion therefrom, and allowing the emulsified fluids to segregate while measuring light transmittance through the segregating fluids in order to calculate a transition time period based on the light transmittance through the fluids in the chamber. The transition time period is preferably bounded by the time required for the light transmittance values measured by the light detector to reach a baseline light transmittance. The transition time period characterizes the stability of an emulsion formed by the captured fluids. The methods and apparatus can also be used for other fluid testing applications beyond downhole formation fluid testing.

摘要翻译： 用于石油地层流体的井下流体分析的方法（和相应的装置）。 该方法包括在井下工具的腔室中捕获处于大体分离状态的至少两种不混溶的地层流体（包括石油的流体），激活流体混合装置以混合室中的流体以从其中产生乳液，并允许 乳化流体在通过分离流体测量透光率的同时分离，以便基于通过室中的流体的透光率来计算过渡时间段。 过渡时间段优选地由光检测器测量的光透射率值达到基线透光率所需的时间限制。 过渡时间表征由捕获的流体形成的乳液的稳定性。 该方法和装置也可以用于井下地层流体测试之外的其他流体测试应用。

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。

公开(公告)号：US20060091307A1

公开(公告)日：2006-05-04

申请号：US10541091

申请日：2003-11-21

申请人： Roger Griffiths ,  Jack Horkowitz ,  Kai Hsu

发明人： Roger Griffiths ,  Jack Horkowitz ,  Kai Hsu

IPC分类号： G01V5/00

CPC分类号： G01V5/045

摘要： A method for downhole spectroscopy processing is described. The method includes: obtaining raw spectroscopy data using a downhole tool; processing the raw spectroscopy data using the downhole tool to obtain a downhole processed solution; transmitting the downhole processed solution to a surface processing system; and using the surface processing system to determine lithology information from the downhole processed solution. A downhole tool for processing raw spectroscopy data is also described. The tool includes: a neutron source; at least one detector for detecting the raw spectroscopy data; processing means for processing the raw spectroscopy data to produce a downhole processed solution; and means for transmitting the downhole processed solution to a surface location.

摘要翻译： 描述了井下光谱处理的方法。 该方法包括：使用井下工具获得原始光谱数据; 使用井下工具处理原始光谱数据以获得井下处理溶液; 将井下处理的溶液传送到表面处理系统; 并使用表面处理系统从井下处理溶液中确定岩性信息。 还描述了用于处理原始光谱数据的井下工具。 该工具包括：中子源; 用于检测原始光谱数据的至少一个检测器; 用于处理原始光谱数据以产生井下处理溶液的处理装置; 以及用于将井下处理的溶液传送到表面位置的装置。

公开(公告)号：US06992768B2

公开(公告)日：2006-01-31

申请号：US10249968

申请日：2003-05-22

申请人： Chengli Dong ,  Peter S. Hegeman ,  Oliver C. Mullins ,  Kai Hsu ,  Andrew L. Kurkjian ,  Andrew J. Carnegie

发明人： Chengli Dong ,  Peter S. Hegeman ,  Oliver C. Mullins ,  Kai Hsu ,  Andrew L. Kurkjian ,  Andrew J. Carnegie

IPC分类号： G01J3/46

CPC分类号： E21B49/10 ,  G01N21/31 ,  G01N2021/3129

摘要： A method for refining fluid sample data includes obtaining optical density data for a fluid sample in at least two color channels and at least one fluid component channel and determining a color-absorption function from the optical density data for the fluid sample in the at least two color channels. The method also includes calculating a portion of the optical density caused by color absorptions in each of the at least one fluid component channels, and de-coloring the optical density data in each of the at least one fluid component channels by removing the portion of the optical density data caused by color absorption.

摘要翻译： 用于精炼流体样本数据的方法包括：获得至少两个颜色通道中的流体样本的光密度数据和至少一个流体分量通道，并根据来自至少两个中的流体样本的光密度数据确定颜色吸收函数 颜色通道。 所述方法还包括计算由所述至少一个流体分量通道中的每一个中的颜色吸收引起的光密度的一部分，以及通过去除所述至少一个流体分量通道中的每一个的所述至少一个流体分量通道中的所述光密度数据 由颜色吸收引起的光密度数据。

公开(公告)号：US5031070A

公开(公告)日：1991-07-09

申请号：US533349

申请日：1990-06-05

申请人： Kai Hsu

发明人： Kai Hsu

IPC分类号： G06F1/18

CPC分类号： G06F1/18

摘要： A computer housing, which comprises a hollow frame structure having two opposite rails at the top and a base board at the bottom, two side panels having each a plurality of T-shaped hooks projecting from its bottom edge respectively fastened in corresponding T-shaped holes on the base board and an U-shaped portion on its top edge, an upper cover mounted on the two rails of the frame structure with its two opposite channel edges respectively engaged with the U-shaped portions of the two side panels, and a front panel fixedly secured to the front surface of the frame structure by means of screws permitting the bevel front edge of the upper cover to be retained in an upper channel which is made on its top edge.

摘要翻译： 一种计算机外壳，其包括在顶部具有两个相对的导轨和底部的基板的中空框架结构，两个侧板具有从其底部边缘突出的多个T形钩，所述T形钩分别固定在相应的T形孔中 在基板上和在其顶部边缘上的U形部分，安装在框架结构的两个轨道上的上盖，其两个相对的通道边缘分别与两个侧板的U形部分接合，并且前部 面板通过螺钉固定地固定在框架结构的前表面上，该螺钉允许上盖的斜面前边缘保持在其顶部边缘上制成的上部通道中。

公开(公告)号：US4809236A

公开(公告)日：1989-02-28

申请号：US919091

申请日：1986-10-15

申请人： Kai Hsu ,  Ralphe Wiggins

发明人： Kai Hsu ,  Ralphe Wiggins

IPC分类号： G01V1/48 ,  G01V1/40

CPC分类号： G01V1/48

摘要： Techniques are described whereby measurements derived from acoustic investigations made from inside a borehole penetraing an earth formation are factorized into components with high depth resolution. In one embodiment travel times of an acoustic wave such as the compressional is factored into mud travel time and interval travel times through the earth formation. In another embodiment amplitude measurements of an acoustic wave are factored into components such as receiver gain, earth formation attenuation, and coupling effectiveness at the boundary between the borehole and the earth formation. In both embodiments an additional component can be factored out that is a function of transmitter to receiver spacings. A modified Gauss-Seidel iteration technique is described whereby iterations can rapidly converge with less sensitivity to large variations in the measurements. Factorization of receiver gains effectively enables calibration of the receivers during well logging.

摘要翻译： 描述了技术，其中从穿透地层的钻孔内部进行的声学研究得出的测量被分解成具有高深度分辨率的部件。 在一个实施例中，诸如压缩的声波的行进时间被考虑到通过地层的泥浆行进时间和间隔行进时间。 在另一个实施例中，声波的幅度测量被分解成诸如接收机增益，地球衰减以及在钻孔和地层之间的边界处的耦合效应的组件。 在两个实施例中，可以将附加组件分解为发射机到接收机间隔的函数。 描述了改进的高斯 - 塞德尔迭代技术，其中迭代可以以较小的灵敏度收敛到测量中的大变化。 接收机增益的因式分解有助于在测井期间对接收机进行校准。

公开(公告)号：US08484003B2

公开(公告)日：2013-07-09

申请号：US12553967

申请日：2009-09-03

申请人： Kai Hsu ,  Christopher Harrison ,  Matthew T. Sullivan ,  Michael Stangeland ,  Anthony Smits ,  Anthony Robert Holmes Goodwin

发明人： Kai Hsu ,  Christopher Harrison ,  Matthew T. Sullivan ,  Michael Stangeland ,  Anthony Smits ,  Anthony Robert Holmes Goodwin

IPC分类号： G06G7/48

CPC分类号： G01V11/002 ,  G01N11/16

摘要： Example methods, apparatus and articles of manufacture to process measurements of wires vibrating in fluids are disclosed. A disclosed example apparatus includes a downhole assembly and a surface assembly. The downhole assembly including a sensor to measure a waveform representative of a motion of a wire vibrating within a fluid at a downhole location in a wellbore, a waveform modeler to compute a model parameter from the measured waveform, and a first telemetry module to transmit the computed model parameter to a surface location. The surface assembly including a second telemetry module to receive the computed model parameter from the downhole assembly, and a viscosity analyzer to estimate a viscosity of the fluid from the computed model parameter.

摘要翻译： 公开了用于处理在流体中振动的线的测量的示例性方法，装置和制品。 所公开的示例性设备包括井下组件和表面组件。 所述井下组件包括传感器，用于测量表示在井眼中井下位置处的流体内振动的钢丝的运动的波形，波形建模器，用于根据所测量的波形计算模型参数;以及第一遥测模块， 计算模型参数到表面位置。 所述表面组件包括用于从所述井下组件接收所计算的模型参数的第二遥测模块和从所计算的模型参数估计所述流体粘度的粘度分析器。

公开(公告)号：US08136394B2

公开(公告)日：2012-03-20

申请号：US12425912

申请日：2009-04-17

申请人： Kai Hsu ,  Emmanuel Desroques ,  Kentaro Indo

发明人： Kai Hsu ,  Emmanuel Desroques ,  Kentaro Indo

IPC分类号： E21B49/10

CPC分类号： E21B49/088 ,  G01N33/2823

摘要： Methods and apparatuses for analyzing a downhole fluid are disclosed. An example method may involve the steps of admitting the downhole fluid in a test volume, controllably inducing a pressure change in the test volume based on at least one prescribed rate, measuring pressures in the test volume at a plurality of times, using the pressures measured at the plurality of times to determine a time at which an actual rate of the pressure change in the test volume deviates from the at least one prescribed rate, and detecting an occurrence of phase transition of the downhole fluid based on the determined time.

摘要翻译： 公开了用于分析井下流体的方法和装置。 示例性方法可以包括以下步骤：允许在测试体积中允许井下流体，基于至少一个规定的速率可控地引起测试体积中的压力变化，使用测量的压力测量多次测试体积中的压力 以确定试验体积中的压力变化的实际速率偏离所述至少一个规定速率的时间，并且基于所确定的时间来检测所述井下流体的相变的发生。

公开(公告)号：US20100263442A1

公开(公告)日：2010-10-21

申请号：US12425912

申请日：2009-04-17

申请人： Kai Hsu ,  Emmanuel Desroques ,  Kentaro Indo

发明人： Kai Hsu ,  Emmanuel Desroques ,  Kentaro Indo

IPC分类号： E21B47/08

CPC分类号： E21B49/088 ,  G01N33/2823

摘要： Methods and apparatuses for analyzing a downhole fluid are disclosed. An example method may involve the steps of admitting the downhole fluid in a test volume, controllably inducing a pressure change in the test volume based on at least one prescribed rate, measuring pressures in the test volume at a plurality of times, using the pressures measured at the plurality of times to determine a time at which an actual rate of the pressure change in the test volume deviates from the at least one prescribed rate, and detecting an occurrence of phase transition of the downhole fluid based on the determined time.

摘要翻译： 公开了用于分析井下流体的方法和装置。 示例性方法可以包括以下步骤：允许在测试体积中允许井下流体，基于至少一个规定的速率可控地引起测试体积中的压力变化，使用测量的压力测量多次测试体积中的压力 以确定试验体积中的压力变化的实际速率偏离所述至少一个规定速率的时间，并且基于所确定的时间来检测所述井下流体的相变的发生。

公开(公告)号：US07680600B2

公开(公告)日：2010-03-16

申请号：US11828082

申请日：2007-07-25

申请人： Andrew Carnegie ,  Kai Hsu ,  Julian Pop

发明人： Andrew Carnegie ,  Kai Hsu ,  Julian Pop

IPC分类号： G06F17/00 ,  G06F17/40 ,  G06F19/00

CPC分类号： G01V1/48

摘要： A method for data processing includes transforming measurement data acquired in the time domain during an oilfield operation into a second domain to produce transformed data; identifying distortions in the transformed data; removing the distortions from the transformed data; and transforming back from the second domain to the time domain to produce cleaned-up data. The transforming measurement data may use a Fourier transform or a wavelet transform. The method may further include compressing the cleaned-up data or reconstructing signals from the cleaned-up data. A method for data processing includes decomposing measurement data, which are acquired in an oilfield operation, using a low pass filter to produce a first dataset; decomposing the measurement data using a high pass filter to produce a second dataset; removing distortions from the second dataset to yield a corrected second dataset; and reconstructing a corrected dataset from the first dataset and the corrected second dataset.

摘要翻译： 一种用于数据处理的方法包括将在油田操作期间在时域获取的测量数据转换成第二域以产生变换数据; 识别变换数据中的扭曲; 从转换的数据中消除扭曲; 并从第二个域转换到时域以产生清理数据。 变换测量数据可以使用傅里叶变换或小波变换。 该方法还可以包括压缩清理数据或从清理数据重构信号。 一种用于数据处理的方法包括使用低通滤波器分解在油田操作中获取的测量数据以产生第一数据集; 使用高通滤波器分解测量数据以产生第二数据集; 去除第二数据集的失真以产生校正的第二数据集; 以及从所述第一数据集和所述校正的第二数据集重构校正数据集。