Seismic waveform feature decomposition method and device
A technology of feature decomposition and seismic waveform, applied in the field of geophysical exploration, can solve the problems of low precision and efficiency in seismic interpretation, and achieve the effect of improving precision and efficiency
Active Publication Date: 2019-01-04
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
However, the existing methods all need to use the waveform for a period of time. The waveform contains peaks and boundaries, so the peaks and boundaries of the waveform are mixed together, and it is impossible to distinguish layers and sedimentary features well, resulting in earthquakes. Interpretation work has low precision and efficiency
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[0046] Embodiments of the present application provide a method and device for decomposing seismic waveform features.
[0047] 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 implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0048] refer to figure 1 As shown, the method for decomposing seismic waveform features of the embodiment of the present application may include the following steps:
[0049] S101: Acquire seismic...
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The embodiment of the invention discloses a seismic waveform feature decomposition method and device. The method comprises the following steps: acquiring the seismic data of the target area, wherein the seismic data include at least one sampling point; converting the seismic data into the seismic data volume of the radian domain, wherein the seismic data volume of the radian domain includes at least one radian value, and the radian value is determined by the slope of the sampling point; comparing the radian value in the seismic data volume of the radian domain with the specified threshold value and decomposing the seismic data volume of the radian domain into a horizon data volume and a sedimentation data volume according to the comparison result; and performing horizon interpretation based on the horizon data volume and performing sedimentation interpretation based on the sedimentation data volume. The accuracy and the efficiency of seismic interpretation can be enhanced.
Description
technical field [0001] The present application relates to the technical field of geophysical exploration, in particular to a method and device for decomposing seismic waveform features. Background technique [0002] With the development of exploration technology, the difficulty and depth of exploration are also increasing, and the requirements for the accuracy of seismic interpretation results are also getting higher and higher. When seismic data is collected, a seismic wavelet is generated when excited by the source (shot point), and this seismic wavelet propagates downward in the underground medium. When encountering a reflecting interface, the seismic wavelet will reflect and transmit. A part of the energy of the seismic wavelet changes direction after reflection, propagates upwards, reaches the receiving point on the ground, and is received by the geophone arranged at the receiving point on the ground. The reflections from different reflection interfaces underground wil...
Claims
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Login to View More IPC IPC(8): G01V1/30
CPCG01V1/302
Inventor 李凯胡少华马子涵张枫贺维胜张立彬
Owner BC P INC CHINA NAT PETROLEUM CORP