Optical fluid analysis signal refinement
    31.
    发明授权
    Optical fluid analysis signal refinement 有权
    光学流体分析信号精细化

    公开(公告)号:US06992768B2

    公开(公告)日:2006-01-31

    申请号:US10249968

    申请日:2003-05-22

    IPC分类号: G01J3/46

    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。

    Methods and apparatus to determine a concentration of nitrogen in a downhole fluid
    32.
    发明授权
    Methods and apparatus to determine a concentration of nitrogen in a downhole fluid 有权
    确定井下流体中氮浓度的方法和装置

    公开(公告)号:US08032303B2

    公开(公告)日:2011-10-04

    申请号:US12277262

    申请日:2008-11-24

    IPC分类号: G01V1/40

    CPC分类号: G01N33/2823

    摘要: Methods and apparatus to determine a concentration of nitrogen in a downhole fluid are described. An example apparatus to determine a concentration of nitrogen in a downhole fluid includes a fluid measurement unit to measure a first fluid composition and a density of at least a hydrocarbon and carbon dioxide in a sample of the downhole fluid. Additionally, the example apparatus includes one or more sensors to measure at least a pressure and a temperature of the sample. Further, the example apparatus includes a processing unit to determine a first theoretical density based on at least the first fluid composition, the temperature, and the pressure the sample. Further still, the example apparatus includes an analyzer to determine a first difference between the density of at least the hydrocarbon and the carbon dioxide in the sample and the first theoretical density. The first difference is associated with a concentration of nitrogen in the sample.

    摘要翻译: 描述了确定井下流体中的氮浓度的方法和装置。 用于确定井下流体中的氮浓度的示例性装置包括测量井下流体样品中的第一流体组成和至少一种烃和二氧化碳的密度的流体测量单元。 另外,该示例性装置包括用于测量样品的至少压力和温度的一个或多个传感器。 此外,该示例性装置包括处理单元,该处理单元至少基于第一流体组成,温度和样品的压力确定第一理论密度。 此外,示例性装置包括分析器,用于确定样品中至少烃和二氧化碳的密度与第一理论密度之间的第一差异。 第一个差异与样品中的氮浓度有关。

    Methods and apparatus to estimate fluid component volumes
    34.
    发明授权
    Methods and apparatus to estimate fluid component volumes 有权
    估计流体组分体积的方法和装置

    公开(公告)号:US08813554B2

    公开(公告)日:2014-08-26

    申请号:US13149901

    申请日:2011-06-01

    IPC分类号: E21B49/08

    CPC分类号: E21B49/081

    摘要: Methods of and apparatus to estimate one or more volumes of one or more components of a fluid in a sample chamber of a downhole tool are described. An example method includes obtaining a sample chamber volume measurement, a flowline volume measurement and a supplemental volume measurement. The example method includes drawing the fluid into the sample chamber until the sample chamber is substantially full and measuring a characteristic of the fluid in the sample chamber at a first time to obtain a first characteristic measurement. The example method also includes adding a supplemental volume corresponding to the supplemental volume measurement to over-pressurize the sample chamber after measuring the characteristic at the first time and measuring the characteristic of the fluid in the sample chamber at a second time to obtain a second characteristic measurement. The second time is after the sample chamber is over-pressurized. In addition, the example method includes calculating a first volume of a first component of the one or more components of the fluid based on the first characteristic measurement, the second characteristic measurement, the sample chamber volume measurement, the flowline volume measurement and the supplemental volume measurement.

    摘要翻译: 描述了用于估计井下工具的样品室中的一种或多种流体的一种或多种组分的方法和装置。 示例性方法包括获得样品室体积测量,流线体积测量和补充体积测量。 该示例性方法包括将流体抽入样品室,直到样品室基本上满,并且在第一次测量样品室中的流体的特性以获得第一特征测量。 该示例方法还包括在第一次测量特征之后添加与补充体积测量相对应的补充体积,以在第二次测量样品室中的特性之后对样品室进行过压以获得第二特性 测量。 样品室第二次过压后。 此外,该示例性方法包括基于第一特征测量,第二特征测量,样本室体积测量,流量线测量和补充体积来计算流体的一个或多个分量的第一分量的第一体积 测量。

    Method and apparatus for in-situ side-wall core sample analysis
    35.
    发明授权
    Method and apparatus for in-situ side-wall core sample analysis 有权
    用于原位侧壁核心样品分析的方法和装置

    公开(公告)号:US07500388B2

    公开(公告)日:2009-03-10

    申请号:US11304296

    申请日:2005-12-15

    IPC分类号: E21B49/00

    CPC分类号: E21B49/06

    摘要: A wireline-conveyed side-wall core coring tool for acquiring side-wall core from a geological formation for performing in-situ side-wall core analysis. The coring tool has a core analysis unit operable to measure geophysical properties of an acquired side-wall core. The measured geophysical properties may be used to determine the success of the acquisition of side-wall cores by the coring tool. The core analysis unit is operable of performing an in-situ interpretation of measured geophysical property of the side-wall core and transmitting in near real-time the measurements or the interpretation results to surface data acquisition and processing apparatus.

    摘要翻译: 一种有线输送的侧壁芯取芯工具,用于从地质层获取侧壁芯,用于进行原位侧壁芯分析。 取芯工具具有可用于测量获得的侧壁芯的地球物理性质的核心分析单元。 测量的地球物理性质可用于确定取芯工具对侧壁岩芯的获取成功。 核心分析单元可操作地对侧壁核心的测量的地球物理特性进行现场解释,并将测量或解释结果近似实时传输到地面数据采集和处理设备。

    DETECTING GAS COMPOUNDS FOR DOWNHOLE FLUID ANALYSIS
    38.
    发明申请
    DETECTING GAS COMPOUNDS FOR DOWNHOLE FLUID ANALYSIS 审中-公开
    检测气体混合物用于井下流体分析

    公开(公告)号:US20100050761A1

    公开(公告)日:2010-03-04

    申请号:US12198129

    申请日:2008-08-26

    IPC分类号: E21B49/08 B01J19/00

    CPC分类号: E21B49/005 E21B49/08

    摘要: A gas separation and detection tool for performing in situ analysis of borehole fluid is described. A separation system such as a membrane is employed to separate one or more target gasses from the borehole fluid. The separated gas may be detected by reaction with another material or spectroscopy. When spectroscopy is employed, a test chamber defined by a housing is used to hold the gas undergoing test. Various techniques may be employed to protect the gas separation system from damage due to pressure differential. For example, a separation membrane may be integrated with layers that provide strength and rigidity. The integrated membrane separation may include one or more of a water impermeable layer, gas selective layer, inorganic base layer and metal support layer. The gas selective layer itself can also function as a water impermeable layer. The metal support layer enhances resistance to differential pressure. Alternatively, the chamber may be filled with a liquid or solid material.

    摘要翻译: 描述了一种用于进行井眼流体原位分析的气体分离和检测工具。 使用诸如膜的分离系统将一个或多个目标气体与井眼流体分离。 分离的气体可以通过与另一种材料或光谱学的反应来检测。 当使用光谱法时,由壳体限定的测试室用于保持气体经受测试。 可以采用各种技术来保护气体分离系统免受压力差造成的损害。 例如,分离膜可以与提供强度和刚度的层一体化。 一体化膜分离可以包括不透水层,气体选择层,无机基底层和金属支撑层中的一种或多种。 气体选择层本身也可以用作不透水层。 金属支撑层增强了对压差的抵抗力。 或者,腔室可以填充有液体或固体材料。

    Direct measurement of fluid contamination
    39.
    发明授权
    Direct measurement of fluid contamination 有权
    直接测量流体污染物

    公开(公告)号:US09029155B2

    公开(公告)日:2015-05-12

    申请号:US12785116

    申请日:2010-05-21

    CPC分类号: E21B49/10 E21B1/00 E21B49/08

    摘要: The present disclosure relates to apparatuses and methods to detect a fluid contamination level of a fluid sample. The method may comprise providing a fluid sample downhole from a subterranean formation, applying a reactant to the fluid sample to create a combined fluid, observing the combined fluid, and determining if contaminants are present within the fluid sample based upon the observing the combined fluid.

    摘要翻译: 本公开涉及用于检测流体样品的流体污染水平的装置和方法。 该方法可以包括从地层提供井下的流体样品,将反应物施加到流体样品以产生组合流体,观察组合流体,以及基于观察组合流体来确定流体样品内是否存在污染物。

    Methods For Reservoir Evaluation Employing Non-Equilibrium Compositional Gradients
    40.
    发明申请
    Methods For Reservoir Evaluation Employing Non-Equilibrium Compositional Gradients 有权
    采用非平衡组合梯度进行储层评估的方法

    公开(公告)号:US20140200810A1

    公开(公告)日:2014-07-17

    申请号:US13876801

    申请日:2011-05-31

    IPC分类号: E21B49/08

    摘要: A method for determining reservoir architecture using modeling of a non-equilibrium distribution of at least one analyte in reservoir fluids. The analyte(s) of the analysis preferably has (have) significant compositional variation in the reservoir. For example, the analyte can be a later charging single gas component (such as methane, carbon dioxide, or hydrogen sulfide) in a multi-component fluid system. In this case, the model can assume that the components of the early charge are in a stationary state or in equilibrium, whereas the later charge is in a state of non-equilibrium. The non-equilibrium distribution of the analyte(s) derived from the model is compared to the distribution of the analyte(s) derived from downhole or laboratory fluid analysis of reservoir fluid, and the architecture of the reservoir is determined based upon such comparison.

    摘要翻译: 一种用于使用对储层流体中的至少一种分析物的非平衡分布的建模来确定储层结构的方法。 分析物的分析物优选在储层中具有(具有)显着的组成变化。 例如,分析物可以是多组分流体系统中的稍后装入的单一气体组分(例如甲烷,二氧化碳或硫化氢)。 在这种情况下,模型可以假设早期电荷的分量处于静止状态或处于平衡状态,而后期电荷处于非平衡状态。 将来自模型的分析物的非平衡分布与来自井下的分析物或来自储层流体的实验室流体分析的分布进行比较,并且基于这种比较确定储层的结构。