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Common detection point data gather velocity analysis method

A common receiver point and velocity analysis technology, applied in the field of geophysical exploration and multi-wave seismic data processing, can solve the problems of multi-cost investment and strong technical development strength

Active Publication Date: 2017-10-03
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the development of a relatively complete speed analysis technology requires strong technical development capabilities and more cost input

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  • Common detection point data gather velocity analysis method
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Embodiment Construction

[0019] Preferred embodiments of 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.

[0020] In the process of multi-wave seismic data processing, whether the accurate residual static correction value of converted wave can be calculated is directly related to the quality of converted wave data processing. Usually, people use the common receiver point superposition method to obtain the remaining static correction of the converted wave, so it is necessary to perform velocity analysis based on the common receiver point data gather, and use the meth...

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Abstract

The invention provides a common detection point data gather velocity analysis method. The method comprises the steps that 1 a common detection point data gather to be subjected to velocity analysis is transformed to acquire a pseudo-co-center point data gather; and 2 velocity analysis is carried out on the pseudo-co-center point data gather through a co-center point velocity analysis technology to acquire superposition velocity based on the common detection point data gather. According to the invention, the method is used for common detection point data gather velocity analysis in multi-wave seismic data processing to acquire accurate superposition velocity based on the common detection point data gather, and an accurate common detection point data gather superposition result is provided for acquiring accurate conversion wave remaining static correction amount.

Description

technical field [0001] The invention belongs to the field of geophysical exploration, in particular to the technical field of multi-wave seismic data processing. Background technique [0002] Due to the increasing complexity of underground oil storage structures, the information provided by conventional P-wave exploration technology has been difficult to meet the needs of seismic exploration. In order to meet the requirements of finding oil storage structures, multi-wave seismic exploration technology has begun to be applied to seismic The field of exploration has become an important branch of this field. Compared with the conventional P-wave exploration technology, the subsurface structure information provided by multi-wave seismic exploration is much richer. How to extract the seismic information related to the underground oil storage structure is a multi-wave The only goal of seismic data processing, compared with conventional seismic exploration based on relatively simpl...

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Application Information

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IPC IPC(8): G01V1/30G01V1/36
CPCG01V1/303G01V1/362G01V2210/532G01V2210/622
Inventor 李文杰季玉新陈世军刘来祥
Owner CHINA PETROLEUM & CHEM CORP