Downhole Multiphase Flow Sensing Methods
    11.
    发明申请

    公开(公告)号:US20180058209A1

    公开(公告)日:2018-03-01

    申请号:US15666328

    申请日:2017-08-01

    摘要: Provided are systems and methods for in-situ zonal assessment of multiphase fluid flow in one or more production zones of a production well, including for at least one production zone sensing one or more fluid flow parameters via at least one sensor disposed in a production zone; at least one sensor communications node being in electrical communication with an associated sensor, the at least one sensor communications node positioned along a tubular body in the production zone proximate an associated at least one sensor, and receiving signals from the associated at least one sensor; sending the acoustic signals from the at least one sensor communications node to a receiver at a surface via a series of intermediate communications nodes, node-to-node, the signals being indicative of one or more fluid flow parameters, the series of intermediate communications nodes being spaced along the tubular and configured to transmit acoustic waves; assessing one or more fluid flow parameters for the one or more production zones in response to signals received from a topside communications node.

    Communication Networks, Relay Nodes for Communication Networks, and Methods of Transmitting Data Among a Plurality of Relay Nodes

    公开(公告)号:US20180058206A1

    公开(公告)日:2018-03-01

    申请号:US15665931

    申请日:2017-08-01

    IPC分类号: E21B47/16 H04B11/00

    摘要: Communication networks, relay nodes for communication networks, and methods of transmitting data among a plurality of relay nodes utilizing non-dispersive guided acoustic waves are disclosed herein. The communication networks include an elongate tubular body and a wireless data transmission network including a plurality of relay nodes. The relay nodes include an electro-acoustic transmitter array and an electro-acoustic receiver. The methods include inducing a first acoustic wave within the elongate tubular body with a first relay node, conveying the first acoustic wave along the elongate tubular body to a second relay node, and receiving the first acoustic wave with the second relay node. The methods further include inducing a second acoustic wave within the elongate tubular body with the second relay node, conveying the second acoustic wave along the elongate tubular body to a third relay node, and receiving the second acoustic wave with the third relay node.

    Method and system to remove coke from a coker drum
    14.
    发明申请
    Method and system to remove coke from a coker drum 有权
    从焦化鼓中除去焦炭的方法和系统

    公开(公告)号:US20090056759A1

    公开(公告)日:2009-03-05

    申请号:US12229136

    申请日:2008-08-20

    IPC分类号: B08B7/04

    CPC分类号: B08B3/024 C10B33/00 C10B41/02

    摘要: The present invention is a method to remove coke from a coker drum. The invention includes the steps of impinging fluid from a fluid jet on the inside surface of the coker and then determining the vibration signal of the coker drum. The signal is then transformed to determine the amplitude versus frequency by a Fourier Transform of the vibration signal. The amplitude change of the vibration signal as it goes through a maximum, determines when the coke layer has been cut. The fluid jet is lowered into a new layer of coke.

    摘要翻译: 本发明是从焦化鼓中除去焦炭的方法。 本发明包括以下步骤:将流体从流体射流冲击到焦化器的内表面上,然后确定焦化鼓的振动信号。 然后通过傅里叶变换振动信号来转换信号以确定幅度对频率。 当振动信号经过最大值时,振幅信号的振幅变化决定了焦炭层的切割时间。 流体射流被降低成新的焦炭层。

    Reservoir Formation Characterization using a Downhole Wireless Network

    公开(公告)号:US20180058202A1

    公开(公告)日:2018-03-01

    申请号:US15666312

    申请日:2017-08-01

    IPC分类号: E21B47/14 E21B49/08

    摘要: A system for reservoir formation characterization with a downhole wireless telemetry system, including at least one sensor disposed along a tubular body; at least one sensor communications node placed along the tubular body and affixed to a wall of the tubular body, the sensor communications node being in communication with the at least one sensor and configured to receive signals therefrom; a topside communications node placed proximate a surface; a plurality of intermediate communications nodes spaced along the tubular body and attached to a wall of the tubular body, wherein the intermediate communications nodes are configured to transmit signals received from the at least one sensor communications node to the topside communications node in substantially a node-to-node arrangement; a receiver at the surface configured to receive signals from the topside communications node; and a topside data acquisition system structured and arranged to communicate with the topside communications node. A method for reservoir formation characterization is also provided.

    Method for measuring reactor bed level from active acoustic measurement and analysis
    18.
    发明申请
    Method for measuring reactor bed level from active acoustic measurement and analysis 有权
    从主动声学测量和分析测量反应堆床层的方法

    公开(公告)号:US20090282910A1

    公开(公告)日:2009-11-19

    申请号:US12387886

    申请日:2009-05-08

    IPC分类号: G01F23/296

    CPC分类号: G01F23/296 G01F23/2966

    摘要: The present invention is a non-intrusive method to determine the fluid level in a vessel. In a preferred embodiment, the vessel is a delayed coker drum in a refinery. Waves are generated in the vessel from an outside source. For wall vibration generated in the frequency range of 1-20,000 Hz, accelerometers on the exterior wall of the vessel measures the frequency of the vibration modes of the vessel. The fluid level can be related to the frequency of the vibration mode.

    摘要翻译: 本发明是用于确定容器中的液位的非侵入性方法。 在优选的实施方案中,该容器是炼油厂中的延迟焦化鼓。 波浪是从外部来源产生的。 对于在1-20,000Hz频率范围内产生的壁振动,容器外壁上的加速度计测量容器振动模式的频率。 液位可以与振动模式的频率有关。

    Reservoir formation characterization using a downhole wireless network

    公开(公告)号:US10465505B2

    公开(公告)日:2019-11-05

    申请号:US15666312

    申请日:2017-08-01

    摘要: A system for reservoir formation characterization with a downhole wireless telemetry system, including at least one sensor disposed along a tubular body; at least one sensor communications node placed along the tubular body and affixed to a wall of the tubular body, the sensor communications node being in communication with the at least one sensor and configured to receive signals therefrom; a topside communications node placed proximate a surface; a plurality of intermediate communications nodes spaced along the tubular body and attached to a wall of the tubular body, wherein the intermediate communications nodes are configured to transmit signals received from the at least one sensor communications node to the topside communications node in substantially a node-to-node arrangement; a receiver at the surface configured to receive signals from the topside communications node; and a topside data acquisition system structured and arranged to communicate with the topside communications node. A method for reservoir formation characterization is also provided.

    FLAME INSTABILITY DETECTION AND IDENTIFICATION IN INDUSTRIAL FURNACES
    20.
    发明申请
    FLAME INSTABILITY DETECTION AND IDENTIFICATION IN INDUSTRIAL FURNACES 审中-公开
    工业炉火焰不稳定性检测与鉴定

    公开(公告)号:US20140172368A1

    公开(公告)日:2014-06-19

    申请号:US14101677

    申请日:2013-12-10

    IPC分类号: G01M99/00 G06F17/11

    摘要: Systems and methods for multi-channel detection of an instability in a furnace comprising a plurality of detectors are disclosed. Each of a plurality of detectors provides a first measurement related to the plurality of burners when the furnace is operating in a stable condition. A stable signal component representation is determined based on the first measurement from each of the plurality of detectors. Each of a plurality of detectors provides a second measurement related to the plurality of burners when the furnace is operating in an unknown state. An unstable signal component representation is determined based on the stable signal component representation and a second measurement from each of the plurality of detectors. An instability is detected based on the unstable signal component representation and an instability threshold.

    摘要翻译: 公开了一种用于多通道检测包括多个检测器的炉中的不稳定性的系统和方法。 当炉子处于稳定状态时,多个检测器中的每个检测器提供与多个燃烧器相关的第一测量。 基于来自多个检测器中的每一个的第一测量来确定稳定的信号分量表示。 当炉子处于未知状态时,多个检测器中的每个检测器提供与多个燃烧器相关的第二测量。 基于稳定的信号分量表示和来自多个检测器中的每一个的第二测量来确定不稳定的信号分量表示。 基于不稳定的信号分量表示和不稳定性阈值来检测不稳定性。