An automatic tracking method for all horizons in 3D seismic images based on matching search
A 3D seismic and automatic tracking technology, applied in the direction of seismic signal processing, etc., can solve the problems of long time consumption, poor verifiability, and heavy workload of manual interpretation, so as to improve efficiency and effect, ensure correctness, and improve tracking efficiency Effect
Active Publication Date: 2017-09-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
The traditional level interpretation has always relied on manual interpretation, which has a large workload and takes a long time, and the manual interpretation is affected by the subjective consciousness of the interpreter and has poor verifiability
The existing automatic tracking technology can only meet the requirements of structural interpretation when the stratigraphic structure is relatively simple, and cannot explain complex geological structures
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[0040] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0041] Such as figure 1 As shown, it is a schematic flow chart of the method for automatic tracking of all horizons in 3D seismic images based on matching search in the present invention. A matching search-based automatic tracking method for all horizons in 3D seismic images, comprising the following steps:
[0042] A. Preprocessing the 3D seismic image data;
[0043] B. Extracting layer vertical distribution features from the preprocessed three-dimensional seismic image data in step A;
[0044] C, carry out matching search and generate data blocks according to the horizon vertical distribution ...
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The invention discloses a method for automatic tracking of all horizons in a three-dimensional seismic image based on matching search. The distribution features are matched and searched to generate data blocks, and the data blocks are connected based on the amplitude guidance to realize the automatic tracking of the whole horizon of the 3D seismic image. The present invention extracts the longitudinal distribution features of horizons from multiple adjacent horizons in the vertical direction, realizes the parallel tracking of horizons in the three-dimensional seismic image by performing matching search on the longitudinal distribution features of horizons, and makes full use of the interaction between horizons relationship, which not only guarantees the correctness of the horizon tracking results from the theory and method, but also improves the tracking efficiency and improves the efficiency and effect of seismic interpretation work; track.
Description
technical field [0001] The invention belongs to the technical field of seismic image horizon tracking, and in particular relates to an automatic tracking method for all horizons of a three-dimensional seismic image based on matching search. Background technique [0002] Horizontal tracing is a very important part of seismic image interpretation, and it is also a basic work in seismic image interpretation. At present, the most widely and most effective method used in oil exploration is seismic exploration. Seismic exploration is to excite seismic waves through explosions and other means. Due to the change of wave impedance in different geological structures, sound waves will be affected by rock formations when passing through different geological structures. The reflection of the ground produces reflected waves, which go back up to the ground and are accepted and recorded by the receiving sensors on the ground. This is the most primitive seismic record. The seismic records c...
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IPC IPC(8): G01V1/28
Inventor 钱峰谭小勰胡光岷苏照杰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA