Quality Control And Analysis In The Mass Seismic Data Processing System

MPS (Marine seismic data Parallel process System) is an Oil-gas exploration specialized technology software, which could process the conventional land and the marine seismic data, and also could process the mass seismic data. The quality control and analysis system is a part of MPS, and it's in order to control the quality of the seismic data collected in the field with quantitative analysis. The control and evaluation work for the data quality depends on the personal experience of technologists for a long time. Thereby a fast convenient canonical system which is adapted to be applied in the field is required as there is a lot of experimentation in the field every year with extending seismic exploration field and improving technology.The thesis introduces the software development environment first, and then lines the system design flow, tells software development process. The thesis analyses the system workflow and data construction first, and then expatiates that how to carry out every process.The analysis function of the quality control and analysis system includes: (1) energy analysis which is in order to analyzing the rule of the energy changing; (2) frequency spectrum analysis which is in order to analyzing the relation between amplitude and frequency and the relation between phase and frequency of the seismic data in the range of the window; (3) signal-to-noise analysis which is in order to analyzing the signal-to-noise of the seismic data in the range of the window; (4) division frequency scan analysis which divides the seismic data in the window to efficient signal and noise signal in different frequency bands, and displays the new gathers; (5) autocorrelation analysis which gets the results of gather data of autocorrelation transform; (6) linear speed analysis which gets the linear speed of the data where mouse arrives. We can get the energy,frequency,signal-to-noise and other information by the analysis function hereinbefore.The thesis also introduces the application of the quality control and analysis system, and show the function effect of the system.