Apparatus and method for detecting the presence of gas in a borehole
flow stream
    2.
    发明授权
    Apparatus and method for detecting the presence of gas in a borehole flow stream 失效
    用于检测钻孔流中气体的存在的装置和方法

    公开(公告)号:US5201220A

    公开(公告)日:1993-04-13

    申请号:US942005

    申请日:1992-09-08

    IPC分类号: E21B47/10 E21B49/10 G01N21/43

    摘要: A borehole apparatus detects the presence of gas within a formation fluid sample. A light source transmits light rays to an interface between the fluid sample and the flow line. The interface reflects the light rays toward a detector array. The detector array detects light rays having angles of incidences extending from less than the Brewster angle to more than the critical angle for gas. A data base stores information concerning the Brewster angle and critical angle of gas for a plurality of gas volume categories. A processor determines the percentage of gas present in the formation fluid sample and categorizes the fluid sample as high as, medium gas, low gas, and no gas based on the signal from the detector array and the information from the data base.

    摘要翻译: 井眼装置检测地层流体样品中气体的存在。 光源将光线传输到流体样品和流动管线之间的界面。 该界面将光线朝向检测器阵列反射。 检测器阵列检测从小于布鲁斯特角延伸到大于气体临界角的发生角度的光线。 数据库存储关于多个气体体积类别的布鲁斯特角和气体临界角的信息。 处理器确定存在于地层流体样品中的气体的百分比,并且基于来自检测器阵列的信号和来自数据库的信息将流体样品分类为高达,中等气体,低气体和无气体。

    Method of analyzing oil and water fractions in a flow stream
    3.
    发明授权
    Method of analyzing oil and water fractions in a flow stream 失效
    分析流量中的油和水分数的方法

    公开(公告)号:US5331156A

    公开(公告)日:1994-07-19

    申请号:US15708

    申请日:1993-02-09

    摘要: Methods for quantifying the oil and water fractions of a fluid stream. A first method broadly includes making optical density (OD) measurements of the fluid stream by detecting photons of a first predetermined energy where the oil and water absorption characteristics are substantially identical (e.g., 1710 nm wavelength), and determining the oil and water fractions f.sub.o and f.sub.w according to OD.perspectiveto.f.sub.w .alpha..sub.w l+f.sub.o .alpha..sub.o l where .alpha..sub.w and .alpha..sub.o are related to the absorption coefficients of the oil and water at the predetermined energy, l is the path width of the fluid stream, and f.sub.w +f.sub.o =1. A second method which eliminates scattering effects utilizes the photons at the first predetermined energy and further utilizes photons of a second predetermined energy which is sufficiently close to the first predetermined energy such that the oil fraction is a linear function of the OD over the energy range. The oil and water fractions are then determined from the difference in optical density values (.DELTA.OD) according to .DELTA.OD=f.sub.o [(OD.sub.o,a -OD.sub.o,b)- (OD.sub.w,a -OD.sub.w,b)]+(OD.sub.w,a -OD.sub.w,b), where OD.sub.o,a, OD.sub.o,b, OD.sub.w,a, and OD.sub.w,b are the optical densities per unit length of pure oil (o) and pure water (w) at the first (a) and second (b) wavelengths.

    摘要翻译: 用于量化流体流的油和水分数的方法。 第一种方法广泛地包括通过检测第一预定能量的光子来测量流体流的光密度(OD),其中油和水吸收特性基本相同(例如,1710nm波长),并且确定油和水分数fo 和fw根据OD&persp&fw alpha wl + fo alpha ol,其中αw和αo与预定能量下的油和水的吸收系数相关,l是流体流的路径宽度,fw + fo = 1。 消除散射效应的第二种方法利用第一预定能量的光子,并进一步利用足够接近于第一预定能量的第二预定能量的光子,使得油分数在能量范围内是OD的线性函数。 然后根据DELTA OD = fo [(ODo,a-ODo,b) - (ODw,a-ODw,b)] +(ODw,a-ODw,b) - 的光密度值(DELTA OD) a-ODw,b),其中ODo,a,ODo,b,ODw,a和ODw,b是在第一(a)处纯油(o)和纯水(w)的每单位长度的光密度, 第二(b)波长。

    Integrated formation modeling systems and methods
    4.
    发明授权
    Integrated formation modeling systems and methods 有权
    综合地层建模系统和方法

    公开(公告)号:US09366776B2

    公开(公告)日:2016-06-14

    申请号:US13295085

    申请日:2011-11-13

    IPC分类号: G01V1/28 G01V1/50

    摘要: Integrated formation modeling systems and methods are described. An example method of performing seismic analysis of a subterranean formation includes obtaining seismic data of the formation, obtaining fluid from the formation and analyzing at least some of the fluid to determine a fluid parameter. The example method additionally includes generating a model of the formation based at least on the seismic data and modifying the model based on the fluid parameter.

    摘要翻译: 描述了综合地层建模系统和方法。 执行地下地层的地震分析的示例性方法包括获得地层的地震数据,从地层获得流体并分析至少一些流体以确定流体参数。 该示例性方法还包括至少基于地震数据生成地层模型并基于流体参数修改模型。

    Direct measurement of fluid contamination
    5.
    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 and apparatus to estimate fluid component volumes
    6.
    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。

    Methods For Reservoir Evaluation Employing Non-Equilibrium Compositional Gradients
    7.
    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。

    Method for mixing fluids downhole
    8.
    发明授权
    Method for mixing fluids downhole 有权
    井下混合液的方法

    公开(公告)号:US08714254B2

    公开(公告)日:2014-05-06

    申请号:US12966464

    申请日:2010-12-13

    IPC分类号: E21B49/08 E21B43/22

    摘要: Methods and devices for mixing a first fluid with a second fluid downhole include a chamber having a first end, a second end and an opening for fluid to flow there through. A top surface of a piston is capable of contacting the second end of the chamber. The piston is located at a first position within the chamber based upon characteristics of a second fluid. A fluid delivery system supplies the first fluid and supplies a second fluid through a first opening of the chamber, wherein the second fluid is at a pressure that moves the piston approximate to the second end of the chamber. The piston includes an agitator mixing device that is attached to a bottom surface of the piston, wherein mixing of the first fluid with the second fluid primarily occurs upon movement of the piston by actuating device.

    摘要翻译: 用于将第一流体与第二流体井下混合的方法和装置包括具有第一端,第二端和用于流体流过其的开口的室。 活塞的顶表面能够接触腔室的第二端。 基于第二流体的特性,活塞位于腔室内的第一位置。 流体递送系统供应第一流体并且通过腔室的第一开口供应第二流体,其中第二流体处于使活塞近似于腔室的第二端的压力。 活塞包括附接到活塞的底表面的搅拌器混合装置,其中第一流体与第二流体的混合主要在活塞通过致动装置移动时发生。