Seismic data processing method and device
A technology of seismic data and seismic data volume, applied in the field of oil and gas reservoir exploration and development, can solve the problems of seismic data resolution, fidelity, signal-to-noise ratio, difficult to effectively detect fracture information, etc. The effect of continuity
Active Publication Date: 2018-07-20
PETROCHINA CO LTD
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Problems solved by technology
[0003] With the increase of production demand, some areas with complex surface and relatively poor seismic data acquisition effect are gradually entering the exploration stage, such as the exploration in the western region with many mountains and deserts, the seismic data resolution, fidelity, signal-to-noise ratio, etc. are not easy to obtain effective guarantee
For such seismic data, it is difficult to effectively detect fracture information using existing coherent algorithms
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[0039] Embodiments of the present application provide a seismic data processing method and device.
[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0041] An embodiment of the present application provides a seismic data processing method. The seismic data processing method provides an initial seismic data volume of a targeted work area.
[0042] In this embodiment, the target work a...
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The embodiment of the application discloses a seismic data processing method and device. The method comprises: an initial instantaneous phase attribute data volume corresponding to an initial seismicdata volume is determined; vertical equalization processing is carried out on the initial instantaneous phase attribute data volume to obtain a target instantaneous phase attribute data volume, wherein a phase attribute value of a specified data point in the target instantaneous phase attribute data volume is obtained by weighed equalization processing on an instantaneous phase attribute value ofthe data point in a designed range in the initial instantaneous phase attribute data volume, the data point in the designed range is used for representing the specified data point in the initial instantaneous phase attribute data volume and a specified number of data points adjacent to the specified data point; and according to a specified Gaussian function and the target instantaneous phase attribute data volume, a target seismic data volume of a destination work area is determined. Therefore, the fracture feature in the seismic data is enhanced; and thus the fracture information can be effectively detected.
Description
technical field [0001] This application relates to the technical field of exploration and development of oil and gas reservoirs, in particular to a seismic data processing method and device. Background technique [0002] Faults are an important factor controlling oil and gas accumulation, so fault identification is of great significance for discovering fault-related oil and gas pools. At present, the coherent algorithm is often used to identify faults, which uses the correlation or similarity between two seismic traces to detect faults. [0003] With the increase of production demand, some areas with complex surface and relatively poor seismic data acquisition effect are gradually entering the exploration stage, such as the exploration in the western region with many mountains and deserts, the seismic data resolution, fidelity, signal-to-noise ratio, etc. are not easy to obtain effective guarantee. For such seismic data, it is difficult to effectively detect fault informat...
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Login to View More IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 丰超潘建国王宏斌滕团余李闯
Owner PETROCHINA CO LTD