Seismic reflected wave combined imaging method and system
A technology of seismic reflection and imaging method, which is applied in the field of land or marine seismic exploration, can solve the problems of signal distortion, seismic data imaging quality to be improved, and the inability to effectively use surface-related multiple waves, etc., so as to improve imaging quality and achieve high Effects of Precision Prospecting
Pending Publication Date: 2022-04-29
BEIJING RES INST OF URANIUM GEOLOGY
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, conventional imaging methods based on velocity models and primary reflections will not only produce signal distortion, but also cannot effectively use surface-related multiple waves, and the imaging quality of seismic data needs to be improved
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0063] 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.
[0064] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0065] At present, relevant researchers have carried out a lot of research on the identification and attenuation of surface-related multiple waves, and achieved good results. On this basis, this embodiment provide...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a seismic reflected wave combined imaging method and system, and relates to the field of onshore or marine seismic exploration. The seismic reflected wave combined imaging method comprises the following steps: processing obtained initial seismic data to obtain pre-stack common imaging point seismic data; carrying out suppression processing on surface related multiples in the pre-stack common imaging point seismic data to obtain zero offset seismic data containing primary reflection waves; performing cross-correlation processing on the pre-stack common imaging point seismic data and the zero offset seismic data to obtain ghost reflection seismic data containing surface correlation multiples; performing cross-correlation processing on the pre-stack common imaging point seismic data and the ghost reflection seismic data to obtain common imaging point seismic data after data driving dynamic correction; and based on the common imaging point seismic data after data driving dynamic correction, obtaining an imaging result at the common reflection point in the target reflection wave field by adopting a horizontal superposition method. According to the invention, the imaging quality of seismic reflected waves can be improved.
Description
technical field [0001] The invention relates to the field of land or ocean seismic exploration, in particular to a seismic reflection wave joint imaging method and system. Background technique [0002] Conventional seismic imaging methods only image primary seismic reflections, while seismic multiple reflections, as reflection information from inside the medium, are often regarded as the main pre-stack noise, which seriously affects the imaging quality and reliability of seismic primary reflections , which destroys the amplitude and phase information of the target reflected wave field, and increases the uncertainty of target layer structure interpretation and physical property inversion. Therefore, seismic multiples need to be suppressed in conventional seismic data processing. Among the multiples, the surface-correlated multiples have the strongest energy. Especially in conventional marine seismic exploration, due to the existence of the seawater layer, the seismic waves w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01V1/30G01V1/36
CPCG01V1/306G01V1/362G01V2210/322G01V2210/53G01V2210/62
Inventor 曹成寅乔宝平李子伟潘自强黄昱丞
Owner BEIJING RES INST OF URANIUM GEOLOGY