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公开(公告)号：US20120018149A1
公开(公告)日：2012-01-26
申请号：US13148424
申请日：2010-02-09
IPC分类号： E21B47/00
CPC分类号： G01V8/16 , E21B47/102
摘要： A method of measuring fluid in-flow in a region of interest in a wellbore comprises deploying a fiber optic cable concurrently with placement of a downhole tubular, transmitting a light signal along the cable and receiving a reflected signal from the region of interest, and interpreting the received signal to obtain information about fluid flowing in the region of interest. The wellbore may include a horizontal portion. The received signal may also be interpreted by assessing amplitude and frequency spectra across array of channels, conditioning the received signal by removing at least a portion of the signal that is not related to flow, assessing flow regimes across depths and times, calculating axial flow/s within the wellbore using relationships for axial flow, and calculating flow into or out of the wellbore at one or more points using relationships for flow through an orifice.
摘要翻译： 在井筒中的感兴趣区域中测量流体中的流体的方法包括与放置井下管同时布置光纤电缆，沿着电缆传输光信号并从感兴趣区域接收反射信号，并且解释 接收到的信号以获得关于在感兴趣区域中流动的流体的信息。 井眼可以包括水平部分。 接收的信号也可以通过评估通道阵列上的幅度和频谱来解释，通过去除与流不相关的信号的至少一部分来调节接收的信号，评估横跨深度和时间的流动状态，计算轴向流/ 在井筒内使用轴向流动的关系，以及使用关于通过孔的流动的关系计算在一个或多个点处进入或离开井眼的流量。
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公开(公告)号：US08245780B2
公开(公告)日：2012-08-21
申请号：US13148424
申请日：2010-02-09
IPC分类号： E21B47/00
CPC分类号： G01V8/16 , E21B47/102
摘要： A method of measuring fluid in-flow in a region of interest in a wellbore comprises deploying a fiber optic cable concurrently with placement of a downhole tubular, transmitting a light signal along the cable and receiving a reflected signal from the region of interest, and interpreting the received signal to obtain information about fluid flowing in the region of interest. The wellbore may include a horizontal portion. The received signal may also be interpreted by assessing amplitude and frequency spectra across array of channels, conditioning the received signal by removing at least a portion of the signal that is not related to flow, assessing flow regimes across depths and times, calculating axial flow/s within the wellbore using relationships for axial flow, and calculating flow into or out of the wellbore at one or more points using relationships for flow through an orifice.
摘要翻译： 在井筒中的感兴趣区域中测量流体中的流体的方法包括与放置井下管同时布置光纤电缆，沿着电缆传输光信号并从感兴趣区域接收反射信号，并且解释 接收到的信号以获得关于在感兴趣区域中流动的流体的信息。 井眼可以包括水平部分。 接收的信号也可以通过评估通道阵列上的幅度和频谱来解释，通过去除与流不相关的信号的至少一部分来调节接收的信号，评估横跨深度和时间的流动状态，计算轴向流/ 在井筒内使用轴向流动的关系，以及使用关于通过孔的流动的关系计算在一个或多个点处进入或离开井眼的流量。
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公开(公告)号：US20130298665A1
公开(公告)日：2013-11-14
申请号：US13996439
申请日：2011-12-09
IPC分类号： E21B47/06
CPC分类号： E21B47/06 , E21B43/26 , E21B47/065 , E21B47/101 , G01B11/16 , G01B11/18
摘要： A method for monitoring a well treatment, comprising the steps of installing at least one distributed acoustic strain sensor in at least one monitoring well, said monitoring well being a known distance from the treatment well, initiating a well treatment on the first well, monitoring the formation surrounding the monitoring well using the distributed acoustic strain sensor, and using the distributed acoustic strain sensor, detecting a change in strain at a first location in the monitoring well, using the change in strain to make determinations about the well treatment. The sensor may comprise a fiber optic cable. The change in strain may be used as an indicator that the effect of the well treatment has extended beyond a predetermined preferred treatment zone, the treatment may be a fracture treatment, and the well treatment may be controlled or ceased based on the determinations made in step e).
摘要翻译： 一种用于监测井处理的方法，包括以下步骤：在至少一个监测井中安装至少一个分布式声学应变传感器，所述监测井是距处理井已知的距离，在第一井上开始井处理，监测 使用分布式声应变传感器围绕监测井的形成，并使用分布式声应变传感器，使用应变的变化来检测在监测井中的第一位置处的应变变化，以确定井处理。 传感器可以包括光纤电缆。 应变的变化可以用作指示器，其中井处理的效果已经延伸到预定的优选处理区之外，处理可以是断裂处理，并且可以基于步骤中所做的确定来控制或停止井处理 e）。
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