Research On High Precision Matching Method Of Multi-Wave

Multiple wave and multi-component seismic exploration technology is indispensable to seismic exploration domain, Multi-wave matching technology plays an important role in the analysis and explanation of multi-wave data. The quality of multi-wave data directly decides the complexity of Multi-wave joint explanation and joint inversion. Therefore, the research of Multi-wave matching technology is very important to seismic exploration.The main problem of current multi-wave matching technology is the low accuracy of the match. Firstly, the current multi-wave initial matching technology complete the match work merely by the level matching, thus the matching result is not good and the accuracy of the matching is not very high either. Secondly, the accuracy requirement of multi-wave matching is higher and higher. However, the accuracy of current multi-wave fine matching is not very high. The low-accuracy of fine multi-wave matching seriously affected the multi-wave joint interpretation and joint inversion.To solve the above problems, this paper proposes a multiple wave high precision matching method. This method includes two steps:initial matching and multi-wave fine matching. First of all, implementing the match of PP wave and PS wave using the multi-wave initial matching that is based on the kriging interpolation method; After the initial matching, the result is used to implement the multi-wave high precision fine matching that is based on the horizon constraints. After being tested on real seismic data, the result shows that the high precision matching method is more effective. In this paper, the main work is as follows:1. Aiming at the problem of low accuracy of traditional horizon matching, this paper puts forward a multi-wave initial matching method based on space kriging interpolation. The method using the known horizon gamma data and the gamma data gotten from human interaction match as the initial data, according to the attribute of seismic data, calculating all of gamma data based on the space kriging interpolation to complete the initial matching of PP wave and PS wave.2. In view of the low accuracy of the traditional method of horizon match method,this paper proposes a high precision multi-wave matching method based on the horizon constraints. This method includes the restraint that the fine matching horizon does not change, as a result, the fine matching fine tune the PS wave on the basis of the initial matching, improving the matching result.