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公开(公告)号：EP3259443A1
公开(公告)日：2017-12-27
申请号：EP15794772.2
申请日：2015-11-05
CPC分类号： G01N29/02 , E21B43/12 , E21B47/101 , G01F1/66 , G01F1/667 , G01F1/74 , G01N2291/02433
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for monitoring slug flow in subterranean wells. In one aspect, a method includes at a time instant, transmitting an acoustic signal across a cross-section of a pipeline flowing multiphase fluid including gaseous fluid and liquid fluid, wherein a portion of the acoustic signal is carried through the cross-section of the pipeline by the multiphase fluid and determining, at the time instant, a first quantity of the gaseous fluid and a second quantity of the liquid fluid passing the cross-section of the pipeline based, in part, on an energy of the portion of the acoustic signal carried through the cross-section and at least a portion of a total energy of the transmitted acoustic signal.
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公开(公告)号：EP3161424A1
公开(公告)日：2017-05-03
申请号：EP15738544.4
申请日：2015-06-30
IPC分类号： G01F1/74
摘要： Virtual and non-invasive multiphase metering is performed for recognition of multiphase flow regimes of hydrocarbons and other fluids, flow rate, presence of sand, and other multiphase flow parameters. A passive acoustical detector system receives acoustical flow information in the form of acoustic emission signals, and a data processor processes and classifies the acoustical patterns. A statistical signal processing methodology is used. Acoustic models are provided for various flow regimes and flow patterns, using Artificial Intelligence methods including Hidden Markov Models and Artificial Neural Networks along with automated learning procedures. The metering can be used for downhole, top side and surface applications.
摘要翻译： 虚拟和非侵入式多相计量是为了识别碳氢化合物和其他流体的多相流动状态，流速，砂子的存在以及其他多相流动参数而进行的。 被动声学检测器系统接收声发射信号形式的声流信息，并且数据处理器处理和分类声学图案。 使用统计信号处理方法。 使用包括隐马尔可夫模型和人工神经网络在内的人工智能方法以及自动学习程序，为各种流动状态和流动模式提供声学模型。 计量可用于井下，顶面和地面应用。
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公开(公告)号：EP3259443B1
公开(公告)日：2019-04-24
申请号：EP15794772.2
申请日：2015-11-05
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4.发明公开
公开(公告)号：EP3126787A2
公开(公告)日：2017-02-08
申请号：EP15714349.6
申请日：2015-03-19
CPC分类号： G06T7/0004 , G01F1/3209 , G01F1/58 , G01F1/66 , G01F1/667 , G01F1/74 , G01N22/00 , G01N29/024 , G01N29/032 , G01N29/0672 , G01N2291/02433 , G01N2291/106 , G06T7/20 , G06T7/70 , G06T11/008 , G06T11/60 , G06T2207/10072 , G06T2207/30108
摘要： Tomographic reconstruction is performed of cross-sectional images of downhole or surface multiphase flows containing water (brine), oil, and gas phases. Measures are obtained of digital transmission (or analog attenuation) and also of analog transit time to form two views of the same cross sectional flow in a location of interest in a flow conduit. The measures are then merged by synthesizing a composite image of the multiphase flows. Rather than performing a complex tomographic reconstruction requiring a large number of calculations, measures are also obtained directly from the tomographic pattern which can be used to reconstruct an approximation of the cross sectional flow by the superposition of circles of variable position, radius and density representing flow patterns.
摘要翻译： 对含有水（盐水），油和气相的井下或表面多相流的截面图进行层析重建。 获得数字传输（或模拟衰减）以及模拟传播时间的措施，以形成在流动管道中感兴趣的位置中相同横截面流动的两个视图。 然后通过合成多相流的合成图像来合并这些措施。 而不是执行需要大量计算的复杂层析成像重建，也可以直接从断层图像获得测量值，该层析图案可用于通过可变位置，半径和密度的圆的叠加代表流量来重建横截面流的近似 图案。
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公开(公告)号：EP3350502A1
公开(公告)日：2018-07-25
申请号：EP16782115.6
申请日：2016-09-15
CPC分类号： H02K7/1823 , F16L53/38 , F17D1/05 , H05B1/02 , H05B1/0244
摘要： A system for preventing hydrate formation in a pipeline includes a heater housing. The heater housing has an outer diameter sized to travel within the pipeline. A turbine assembly is located within the heater housing. The turbine assembly has a blade that is rotatable by a flow of fluid within the pipeline. An electric heater is located within the heater housing and is electrically connected to the turbine assembly. The electric heater is selectively contacted by the flow of fluid within the pipeline.
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