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Depth domain imaging simulation method and system

An imaging simulation and depth-domain technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as difficulty in designing regularization schemes, instability, etc.

Active Publication Date: 2020-09-04
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

Although the above methods reduce the computational cost, there are still instability problems in the case of insufficient lighting, and it is difficult to design a suitable regularization scheme

Method used

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  • Depth domain imaging simulation method and system
  • Depth domain imaging simulation method and system
  • Depth domain imaging simulation method and system

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Those skilled in the art know that the embodiments of the present invention can be implemented as a system, device, device, method or computer program product. Therefore, the present disclosure may be embodied in the form of complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0034] In view of the problem of instability in the prior art, an embodiment of the present ...

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Abstract

The invention provides a depth domain imaging simulation method and system. The depth domain imaging simulation method comprises the following steps: dividing an initial density model into windows, and setting density disturbance points in each window; determining a disturbance point density model according to the initial density model under the influence of the density disturbance points; obtaining point scattering wave field data according to the disturbance point density model and the initial density model; carrying out offset processing on the point scattering wave field data to obtain a point spread function; and obtaining depth domain simulation imaging according to the point spread function and the reflectivity model. According to the method and the system, stable and continuous simulation imaging matched with actual migration imaging can be obtained.

Description

technical field [0001] The present invention relates to the technical field of seismic data imaging, in particular to a depth domain imaging simulation method and system. Background technique [0002] The traditional method of simulating migration imaging in seismic inversion is to perform one-dimensional convolution in the time domain. This method is based on the assumption of horizontal layers and the approximation of time-migrated data, and does not consider the influence of 3D complex media on seismic wave propagation. In complex media, due to the influence of migration algorithm, geological model and irregular acquisition, the entire waveform propagation process is not perfectly reversible, so it is difficult to obtain satisfactory inversion results with this method. As oil and gas exploration extends to deep complex geological structures, conventional seismic migration inversion methods face many challenges, such as amplitude-preserving imaging and salt dome bottom ima...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/36
CPCG01V1/36G01V1/282G01V2210/51Y02T90/00
Inventor 张建磊慕文韬王成祥岳玉波钱忠平张超阳
Owner BC P INC CHINA NAT PETROLEUM CORP
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