Seismic data index database construction method and device, related equipment and index database

• Main Authors: HOU HONGJUN, ZHAO CHANGHAI, DU JIGUO, SHANG MINQIANG, WANG ZENGBO, GAO GEYUE
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a seismic data index database construction method and device, related equipment and an index database, and the method can comprise the steps: carrying out the sampling prediction of trace header data in obtained seismic data, so as to generate a node distribution model of trace header keywords and distributed nodes; based on the node distribution model, all the nodes perform keyword extraction on trace header data included in data blocks in the seismic data matched with the nodes in parallel, keywords and trace numbers serve as index entries, and index files corresponding to the data blocks matched with the nodes are generated based on the index entries; and based on the index entries included in the index file and the offset of the index entries in the index file, constructing an index database of the seismic data. According to the method, a distributed parallel mode is fully utilized to improve index construction efficiency, a novel index structure is used to realize quick constructi