Virtual flowmeter for a well
    2.
    发明授权
    Virtual flowmeter for a well 有权
    一个井的虚拟流量计

    公开(公告)号:US08783355B2

    公开(公告)日:2014-07-22

    申请号:US12967605

    申请日:2010-12-14

    IPC分类号: E21B36/00 E21B47/06

    摘要: A technique includes inducing a distributed temperature change along a portion of a wellbore and measuring a time varying temperature along the portion of the wellbore due to the induced change. The technique includes determining a distributed flow rate in the portion based at least in part on the measured time varying temperature before the temperature reaches equilibrium.

    摘要翻译: 一种技术包括沿着井筒的一部分诱导分布的温度变化,并且由于所引起的变化,沿着井眼的该部分测量时变温度。 该技术包括至少部分地基于在温度达到平衡之前测量的时变温度来确定该部分中的分布流量。

    Method and apparatus to monitor reformation and replacement of CO2/CH4 gas hydrates
    3.
    发明授权
    Method and apparatus to monitor reformation and replacement of CO2/CH4 gas hydrates 有权
    监测CO2 / CH4气体水化物改造和更换的方法和装置

    公开(公告)号:US08548743B2

    公开(公告)日:2013-10-01

    申请号:US12832148

    申请日:2010-07-08

    申请人: John R. Lovell

    发明人: John R. Lovell

    摘要: A method for monitoring production from a methane hydrate reservoir includes obtaining a plurality of temperature measurements in a wellbore connected with the methane hydrate reservoir; and deriving a parameter relating to conversion of methane hydrate to carbon dioxide (CO2) hydrate by injection of liquid CO2, wherein the deriving uses a modeling program and the plurality of temperature measurements, wherein the modeling program uses at least one parameter relating to a thermodynamic properties that are substantially different between methane and CO2. The at least one parameter relating to thermodynamic properties may include Joule-Thomson coefficients of methane and CO2. The parameter relating to the conversion of methane hydrate to CO2 hydrate may include a ratio of methane and CO2 in a mixed fluid.

    摘要翻译: 用于监测来自甲烷水合物储存器的生产的方法包括在与甲烷水合物储存器连接的井眼中获得多个温度测量值; 并且通过注入液体CO 2获得与甲烷水合物转化为二氧化碳(CO 2)水合物有关的参数,其中所述推导使用建模程序和多个温度测量,其中所述建模程序使用至少一个与热力学 在甲烷和二氧化碳之间显着不同的性质。 与热力学性质相关的至少一个参数可以包括甲烷和二氧化碳的焦耳 - 汤姆森系数。 与甲烷水合物转化为二氧化碳水合物相关的参数可包括混合流体中甲烷和二氧化碳的比例。

    Combining reservoir modeling with downhole sensors and inductive coupling
    4.
    发明授权
    Combining reservoir modeling with downhole sensors and inductive coupling 有权
    将油藏建模与井下传感器和电感耦合相结合

    公开(公告)号:US08121790B2

    公开(公告)日:2012-02-21

    申请号:US12333343

    申请日:2008-12-12

    IPC分类号: G01V1/40 G01F1/12

    CPC分类号: E21B47/06 E21B49/00

    摘要: A method is disclosed of characterizing a well using a series of measurements taken along the sandface of that well in order to optimize a well model. The method may comprise providing a well model with a plurality of adjustable physical parameters, providing a data set made up of a plurality of sandface measurements, and running the well model with different combinations of adjustable physical parameters so that the results of the well model substantially match the results of the sandface measurements. In one embodiment, the method may comprise creating a communication pathway between the surface and the sandface including an inductive coupler. A further step may include pre-processing the plurality of the sandface measurements. In addition, a further step may be to establish or set at least one control device in order to change the flow characteristics of the production fluid in the well.

    摘要翻译: 公开了一种利用沿着井的砂面进行的一系列测量来表征井的方法,以便优化井模型。 该方法可以包括提供具有多个可调节物理参数的井模型,提供由多个砂面测量组成的数据集,以及以可调节物理参数的不同组合运行井模型,使得井模型的结果基本上 匹配砂面测量结果。 在一个实施例中,该方法可以包括在表面和砂面之间创建包括电感耦合器的通信路径。 另外的步骤可以包括预处理多个砂面测量。 此外,另外的步骤可以是建立或设置至少一个控制装置,以便改变井中的生产流体的流动特性。

    VIRTUAL FLOWMETER FOR A WELL
    5.
    发明申请
    VIRTUAL FLOWMETER FOR A WELL 有权
    虚拟流量计

    公开(公告)号:US20110226469A1

    公开(公告)日:2011-09-22

    申请号:US12967605

    申请日:2010-12-14

    IPC分类号: E21B47/00 G01F1/68

    摘要: A technique includes inducing a distributed temperature change along a portion of a wellbore and measuring a time varying temperature along the portion of the wellbore due to the induced change. The technique includes determining a distributed flow rate in the portion based at least in part on the measured time varying temperature before the temperature reaches equilibrium.

    摘要翻译: 一种技术包括沿着井筒的一部分诱导分布的温度变化,并且由于所引起的变化,沿着井眼的该部分测量时变温度。 该技术包括至少部分地基于在温度达到平衡之前测量的时变温度来确定该部分中的分布流量。

    System and Methods Using Fiber Optics in Coiled Tubing
    6.
    发明申请
    System and Methods Using Fiber Optics in Coiled Tubing 有权
    卷管中使用光纤的系统和方法

    公开(公告)号:US20100018703A1

    公开(公告)日:2010-01-28

    申请号:US12575024

    申请日:2009-10-07

    CPC分类号: E21B17/206 E21B47/123

    摘要: Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment. Wellbore operations performed using the fiber optic enabled coiled tubing apparatus includes transmitting control signals from the surface equipment to the downhole equipment over the fiber optic tether, transmitting information gathered from at least one downhole sensor to the surface equipment over the fiber optic tether, or collecting information by measuring an optical property observed on the fiber optic tether. The downhole tools or sensors connected to the fiber optic tether may either include devices that manipulate or respond to optical signal directly or tools or sensors that operate according to conventional principles.

    摘要翻译: 具有设置在连续油管中用于在井下工具和传感器之间传递信息的光纤系绳的装置以及操作这种设备的表面设备和方法。 使用光纤启用的连续油管装置执行的井眼操作包括将来自地面设备的控制信号传输到光纤系统上的井下设备,将从至少一个井下传感器收集的信息传输到光纤系统上的地面设备,或收集 通过测量在光纤系统上观察到的光学性质的信息。 连接到光纤系统的井下工具或传感器可以包括直接操纵或响应光信号的装置或者根据常规原理操作的工具或传感器。

    METHODS FOR OBTAINING A WELLBORE SCHEMATIC AND USING SAME FOR WELLBORE SERVICING
    7.
    发明申请
    METHODS FOR OBTAINING A WELLBORE SCHEMATIC AND USING SAME FOR WELLBORE SERVICING 失效
    用于获得井眼示意图并使用相同方式进行井筒维修的方法

    公开(公告)号:US20070277975A1

    公开(公告)日:2007-12-06

    申请号:US11421349

    申请日:2006-05-31

    IPC分类号: E21B47/00 E21B43/25

    CPC分类号: E21B47/04

    摘要: Methods are described for determining or estimating a wellbore schematic, one embodiment comprising running one or more measured distances of coiled tubing into a wellbore while pumping a fluid at varying flow rates through the coiled tubing, and calculating true vertical depth of the wellbore using pressure and flow rate data of the fluid. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It may not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

    摘要翻译: 描述了用于确定或估计井筒示意图的方法,一个实施例包括将一个或多个测量的连续管道的距离运行到井眼中,同时以变化的流速泵送流体通过连续油管,并使用压力计算井筒的真实垂直深度, 流体的流量数据。 该摘要允许搜索者或其他读者快速确定本公开的主题。 它不能用于解释或限制权利要求的范围或含义。 37 CFR 1.72(b)。