-
公开(公告)号：EP1400818B1
公开(公告)日：2013-03-06
申请号：EP03255785.2
申请日：2003-09-16
-
2.发明公开Fracture monitoring using pressure-frequency analysis 有权Überwachungvon Rissbildung mittels Druck-Frequenz Analyze
公开(公告)号：EP1400818A2
公开(公告)日：2004-03-24
申请号：EP03255785.2
申请日：2003-09-16
摘要： Changes occurring downhole during a fracturing process can create or reflect pressure signals. Capturing and evaluating such pressure waves during fracturing enables personnel to monitor, in real time or later, what happens downhole. When a fracture extends, a burst of acoustic noise is embodied in a pressure wave or signal, as is noise coming from other sources. By transforming time-based pressure signals to a frequency base, one can monitor this acoustic noise. In a particular implementation, a waterfall plot of frequency spectra at successive time slices of the original signal is used to determine frequency ridges, such as a ridge of decreasing frequencies indicates fracture extension and a ridge of increasing frequencies indicates either closure or proppant backing up in the fracture. Filtering, such as wavelet filtering, can be used. A fracturing process can be controlled in response to determining whether the fracture is extending.
摘要翻译： 在压裂过程中在井下发生的变化可以产生或反映压力信号。 在压裂过程中捕获和评估这种压力波，使人员能够实时监测井下发生的事件。 当断裂延伸时，噪声的突发体现在压力波或信号中，如来自其他来源的噪声一样。 通过将基于时间的压力信号转换为频率基，可以监视这种声音噪声。 在特定的实现中，使用原始信号的连续时间片上的频谱的瀑布图来确定频率脊，例如频率降低的脊表示断裂延伸，并且频率增加的脊指示闭合或支撑剂备份在 骨折。 可以使用滤波，如小波滤波。 可以响应于确定断裂是否延伸来控制压裂过程。
-
公开(公告)号：EP1400818A3
公开(公告)日：2004-12-01
申请号：EP03255785.2
申请日：2003-09-16
摘要： Changes occurring downhole during a fracturing process can create or reflect pressure signals. Capturing and evaluating such pressure waves during fracturing enables personnel to monitor, in real time or later, what happens downhole. When a fracture extends, a burst of acoustic noise is embodied in a pressure wave or signal, as is noise coming from other sources. By transforming time-based pressure signals to a frequency base, one can monitor this acoustic noise. In a particular implementation, a waterfall plot of frequency spectra at successive time slices of the original signal is used to determine frequency ridges, such as a ridge of decreasing frequencies indicates fracture extension and a ridge of increasing frequencies indicates either closure or proppant backing up in the fracture. Filtering, such as wavelet filtering, can be used. A fracturing process can be controlled in response to determining whether the fracture is extending.
摘要翻译： 在压裂过程中井下发生的变化可以产生或反映压力信号。 在压裂过程中捕获和评估这种压力波使人员能够实时或以后监测井下发生的情况。 当裂缝延伸时，压力波或信号中会出现一阵声音噪音，而来自其他来源的噪音也会如此。 通过将基于时间的压力信号转换为频率基准，可以监测这种噪声。 在特定的实施方式中，原始信号的连续时间片处的频谱的瀑布图被用于确定频率脊，诸如降低频率的脊指示断裂延伸并且增加频率的脊指示闭合或支撑剂在 骨折。 可以使用滤波，如小波滤波。 响应于确定断裂是否延伸，可以控制压裂过程。
-
公开(公告)号：EP0881357B1
公开(公告)日：2004-10-27
申请号：EP98303548.6
申请日：1998-05-06
CPC分类号： E21B49/003 , E21B43/00 , E21B44/00 , E21B49/00 , E21B2041/0028 , Y10S706/929
-
公开(公告)号：EP0881357A3
公开(公告)日：2002-02-06
申请号：EP98303548.6
申请日：1998-05-06
CPC分类号： E21B49/003 , E21B43/00 , E21B44/00 , E21B49/00 , E21B2041/0028 , Y10S706/929
摘要： Development of an oil or gas reservoir is controlled using a neural network and genetic algorithm program to define a neural network topology and the optimal inputs for that topology. The topology is defined from identified and selected parameters (1) associated with the formation or formations in which actual wells are drilled in the reservoir, and (2) associated with the drilling, completion and stimulation of those wells, and (3) associated with the oil or gas production from the wells. Subsequent drilling, completion and stimulation of the reservoir is determined and applied based on hypothetical alternatives input to the topology and resulting outputs.
-
6.发明公开Method for controlling the development of an oil or gas reservoir 失效Verfahren zur Steuerung der Entwicklung einerÖl-oderGaslagerstätte
公开(公告)号：EP0881357A2
公开(公告)日：1998-12-02
申请号：EP98303548.6
申请日：1998-05-06
CPC分类号： E21B49/003 , E21B43/00 , E21B44/00 , E21B49/00 , E21B2041/0028 , Y10S706/929
摘要： Development of an oil or gas reservoir is controlled using a neural network and genetic algorithm program to define a neural network topology and the optimal inputs for that topology. The topology is defined from identified and selected parameters (1) associated with the formation or formations in which actual wells are drilled in the reservoir, and (2) associated with the drilling, completion and stimulation of those wells, and (3) associated with the oil or gas production from the wells. Subsequent drilling, completion and stimulation of the reservoir is determined and applied based on hypothetical alternatives input to the topology and resulting outputs.
摘要翻译： 使用神经网络和遗传算法程序来控制油气藏的开发，以定义神经网络拓扑和该拓扑的最佳输入。 该拓扑结构由与在储层中钻出实际井的形成或形成有关的识别和选定参数（1）定义，和（2）与这些井的钻井，完井和刺激相关联，以及（3）与 井中的油气生产。 基于对拓扑结果和结果输出的输入的假设替代，确定并应用随后的油藏钻井，完井和刺激。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.013 秒)
