Wide-azimuth seismic data processing integrated imaging inversion method and system

A seismic data, wide-azimuth technology, applied in the field of oil and gas geophysics, can solve problems such as improper connection, time loss, waste of resources, etc., and achieve the effect of accurate fracture prediction and complex geological imaging

Active Publication Date: 2019-11-05
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

Improper connection of different steps also leads to great waste of resources and time consumption

Method used

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  • Wide-azimuth seismic data processing integrated imaging inversion method and system
  • Wide-azimuth seismic data processing integrated imaging inversion method and system
  • Wide-azimuth seismic data processing integrated imaging inversion method and system

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Embodiment Construction

[0024] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0025] figure 1 A flow chart showing the steps of the integrated imaging inversion method for wide-azimuth seismic data processing according to the present invention.

[0026] In this embodiment, the integrated imaging inversion method for wide-azimuth seismic data processing according to the present invention may include: step 101, based on velocity modeling from the time domain to the depth domain, to obtain an isotropic velocity field in the depth domain; step 102, An omnidirectio...

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Abstract

The invention discloses a wide-azimuth seismic data processing integrated imaging retrieval method and system. The method can include the step of modeling a speed based on a time domain to a depth domain, obtaining an isotropic depth domain speed field; obtaining an omni-directional speed field based on the isotropic depth domain speed field and a common center point gather, and obtain an omni-directional reflection angle gather and an omni-directional inclination angle gather on the basis of the omni-directional speed field and the common center point gather. According to the method, an accurate speed model is generated through an omni-directional technology, and more accurate crack prediction and complex geological imaging are achieved.

Description

technical field [0001] The invention relates to the technical field of oil and gas geophysics, and more specifically, to an integrated imaging inversion method and system for wide-azimuth seismic data processing. Background technique [0002] Recently, seismic work areas with rich and wide azimuths can be obtained by means of improving imaging quality, resolution and new mining methods. Wide-azimuth high-precision seismic technology is a set of technologies that have been developed in recent years and are rapidly approaching universal application. While the oil and gas industry has made great strides in surface sampling of these rich seismic acquisitions, the same has not been achieved in subsurface sampling. To accommodate the rich azimuthal information available in traditional and modern onshore and offshore acquisitions, the oil and gas industry has begun to partition recorded seismic data for acquisition and subsequent independent processing and imaging. [0003] Now, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCG01V1/306G01V2210/62G01V2210/66
Inventor 刘志远刘喜武陈业全霍志周刘宇巍张远银
Owner CHINA PETROLEUM & CHEM CORP
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