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    Method and apparatus for downhole quantification of methane using near infrared spectroscopy
    141.
    发明授权
    Method and apparatus for downhole quantification of methane using near infrared spectroscopy 失效
    使用近红外光谱法对甲烷井下定量的方法和装置

    公开(公告)号：US07173239B2

    公开(公告)日：2007-02-06

    申请号：US10798686

    申请日：2004-03-11

    Applicant: Rocco DiFoggio

    Inventor： Rocco DiFoggio

    IPC: G01V5/08

    CPC classification number: E21B47/102 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/359

    Abstract: The present invention describes a unique method and apparatus for applying near-infrared spectroscopy to estimate weight percent of methane in crude oil from which one can then infer gas-oil ratio (GOR) of crude oils downhole in real time while collecting a fluid sample. The correlation equations provided by this invention use two wavelengths, one centered at 1670 and the other centered at 1682 nm. Both wavelengths are primarily sensitive to the methane peak absorption. To significantly improve the fit, non-spectroscopic parameters, such as temperature or pressure, can be included in the correlation equation. Also, this invention can be used to monitor sample cleanup by monitoring the increase in GOR associated with cleanup as a fluid being pumped from the formation transitions from mostly gas-free filtrate to mostly gas-containing crude oil.

    Abstract translation: 本发明描述了一种独特的方法和装置，用于应用近红外光谱估计原油中甲烷的重量百分数，然后可以在此同时在收集流体样品的同时，实时地推断井下原油的瓦斯 - 油比（GOR）。 本发明提供的相关方程使用两个波长，一个以1670为中心，另一个以1682nm为中心。 两种波长主要对甲烷峰吸收敏感。 为了显着改善拟合度，可以在相关方程中包括诸如温度或压力的非光谱参数。 此外，本发明可用于通过监测与清除相关的GOR的增加来监测样品净化，因为从地层转换从大部分无气体滤液泵送到大部分为含气体原油的流体。

    Acoustic fluid analyzer
    142.
    发明申请
    Acoustic fluid analyzer 有权
    声流体分析仪

    公开(公告)号：US20070022803A1

    公开(公告)日：2007-02-01

    申请号：US11194365

    申请日：2005-08-01

    Applicant: Rocco DiFoggio ,  Weimin Yao

    Inventor： Rocco DiFoggio ,  Weimin Yao

    IPC: G01N29/00

    CPC classification number: G01N29/024 ,  E21B49/10 ,  G01N29/032 ,  G01N29/222 ,  G01N2291/02433 ,  G01N2291/02881

    Abstract: A method of determining properties of a formation fluid based on measurements of fluid sound speed, a measurement of fluid density, or both. The properties include compressibility, thermal conductivity, and gas oil ratio. The compressibility of a fluid is equal to the reciprocal of the product of the sound speed squared and fluid density. The density and the sound speed can be measured acoustically. The method further includes a manner of processing data including applying the Savitzky-Golay method and utilizing a variable thresholding technique.

    Abstract translation: 基于流体声速的测量，流体密度的测量或两者来确定地层流体的性质的方法。 性能包括压缩性，导热率和瓦斯油比。 流体的压缩性等于声速平方和流体密度乘积的倒数。 可以在声学上测量密度和声速。 该方法还包括处理数据的方式，包括应用Savitzky-Golay方法和利用可变阈值技术。

    System and method for determining formation fluid parameters
    145.
    发明申请
    System and method for determining formation fluid parameters 有权
    用于确定地层流体参数的系统和方法

    公开(公告)号：US20050246151A1

    公开(公告)日：2005-11-03

    申请号：US10838103

    申请日：2004-05-03

    Applicant: Rocco DiFoggio

    Inventor： Rocco DiFoggio

    IPC: G01V1/50 ,  G06G7/48

    CPC classification number: G01V1/50

    Abstract: A method for determining a parameter of interest of a formation fluid, comprises moving a tool attached to a tubular member along a borehole in a subterranean formation. The tool is used to determine a formation fluid pressure and a formation fluid temperature at predetermined locations along the borehole and calculating a formation fluid density along the borehole therefrom. A density of a reference fluid is determined along the borehole and is related to the formation fluid pressure and the formation fluid temperature. The parameter of interest of the formation fluid is determined at a predetermined location from a comparison of the corresponding formation fluid density and the reference fluid density at the predetermined location.

    Abstract translation: 一种用于确定地层流体感兴趣的参数的方法，包括沿着地层中的钻孔移动连接到管状构件上的工具。 该工具用于确定沿着井眼的预定位置处的地层流体压力和地层流体温度，并计算沿其钻孔的地层流体密度。 沿钻孔确定参考流体的密度，并与地层流体压力和地层流体温度有关。 根据相应地层流体密度与预定位置处的参考流体密度的比较，在预定位置确定地层流体的关注参数。

    Downhole sorption cooling and heating in wireline logging and monitoring while drilling
    146.
    发明申请
    Downhole sorption cooling and heating in wireline logging and monitoring while drilling 有权
    井下吸附冷却和加热在钻井过程中进行电缆测井和监测

    公开(公告)号：US20050005624A1

    公开(公告)日：2005-01-13

    申请号：US10847243

    申请日：2004-05-17

    Applicant: Rocco DiFoggio ,  Paul Bergren

    Inventor： Rocco DiFoggio ,  Paul Bergren

    IPC: E21B36/00 ,  E21B47/01 ,  E21B49/08 ,  F25D23/12 ,  E21B43/24 ,  F25B17/08

    CPC classification number: E21B47/011 ,  E21B36/003 ,  E21B49/08

    Abstract: A cooling system in which an electronic device or other component is cooled by using one or more solid sources of liquid vapor (such as polymeric absorbents, hydrates or desiccants that desorb water at comparatively low temperature) in conjunction with one or more high-temperature vapor sorbents or desiccants that effectively transfer heat from the component to the fluid in the wellbore. Depending on the wellbore temperature, desiccants are provided that release water at various high regeneration temperatures such as molecular sieve (220-250° C.), potassium carbonate (300° C.), magnesium oxide (800° C.) and calcium oxide (1000° C.). A solid water source is provided using a water-absorbent polymer, such as sodium polyacrylate. Heat transfer is controlled in part by a check valve selected to release water vapor at a selected vapor pressure.

    Abstract translation: 一种冷却系统，其中电子装置或其它部件通过使用一种或多种液体蒸气固体源（例如聚合物吸收剂，在较低温度下解吸水的水合物或干燥剂）与一种或多种高温蒸气 有效地将热量从组分传递到井眼中的流体的吸附剂或干燥剂。 根据井筒温度，提供干燥剂，可以在各种高再生温度下分离水，如分子筛（220-250℃），碳酸钾（300℃），氧化镁（800℃）和氧化钙 （1000℃）。 使用吸水性聚合物如聚丙烯酸钠提供固体水源。 传热部分地由选定的止回阀控制以在选定的蒸汽压力下释放水蒸汽。

    Logging tool retrieval system
    147.
    发明授权
    Logging tool retrieval system 失效
    记录工具检索系统

    公开(公告)号：US5984009A

    公开(公告)日：1999-11-16

    申请号：US19663

    申请日：1998-02-06

    Applicant: Rocco DiFoggio

    Inventor： Rocco DiFoggio

    IPC: E21B31/12 ,  E21B31/18 ,  E21B47/09 ,  E21B33/00

    CPC classification number: E21B31/12 ,  E21B31/18 ,  E21B41/0035 ,  E21B47/09

    Abstract: An apparatus as method for identifying, locating, and retrieving a downhole tool from a borehole. A controller is lowered into the borehole and is capable of detecting a signal from the tool. The signal can be broadcast from the tool, can be generated in response to a signal from the controller, or can be reflected from a controller signal. The controller processes the signal to identify the location and heading of the controller from the tool, and to guide the controller toward the tool. When the controller is moved proximate to the tool, a catch mechanism can be activated to connect the tool and controller housing. The tool is then dislodged for further operation, or is retrieved to the borehole surface.

    Abstract translation: 一种用于从钻孔中识别，定位和检索井下工具的方法的装置。 控制器下降到钻孔中，并且能够检测来自工具的信号。 信号可以从工具广播，可以响应于来自控制器的信号产生，或者可以从控制器信号反射。 控制器处理信号以识别控制器从工具的位置和方向，并将控制器引导到工具。 当控制器靠近工具移动时，可以启动捕捉机构以连接工具和控制器外壳。 然后将该工具移走以进一步操作，或者将其取回到井眼表面。

    Method for improving infrared analysis estimations by automatically compensating for instrument instabilities
    148.
    发明授权
    Method for improving infrared analysis estimations by automatically compensating for instrument instabilities 失效
    通过自动补偿仪器不稳定性来改进红外分析估计的方法

    公开(公告)号：US5397899A

    公开(公告)日：1995-03-14

    申请号：US917486

    申请日：1992-07-21

    Applicant: Rocco DiFoggio ,  Maya Sadhukhan

    Inventor： Rocco DiFoggio ,  Maya Sadhukhan

    IPC: G01J3/00 ,  G01N21/27 ,  G01N21/35 ,  G01N33/28 ,  G01J3/02

    CPC classification number: G01N33/2829 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/359

    Abstract: The present invention is a method for improving the estimation of physical properties of a material based on the infrared spectrum of the material and the correlation between directly-measured properties of interest and the infrared spectra of a representative set of calibration specimens of the material. By intentionally introducing spectral distortion such as transmittance shifts, wavelength shifts, absorbance-baseline shifts and absorbance-baseline tilts into the infrared spectra of the representative specimens and then determining the correlation between the distorted spectra and the directly-measured properties before applying the correlation to the infrared spectrum of the sample being analyzed, the correlation is self-compensating for the types of distortion introduced.

    Abstract translation: 本发明是一种基于材料的红外光谱改善材料的物理性质的估计方法，以及直接测量的感兴趣的性质与该材料的代表性校准样品组的红外光谱之间的相关性。 通过有意引入诸如透射率偏移，波长漂移，吸收 - 基线偏移和吸收 - 基线的光谱失真倾斜到代表性样本的红外光谱中，然后在应用相关性之前确定失真光谱与直接测量特性之间的相关性 正在分析的样品的红外光谱，相关性是引入的失真类型的自补偿。

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