Seismic Data Acquisition Research And Development, Quality Monitoring And Evaluation System

Seismic exploration is a kind of physical exploration methods. The seismic data collection in the field is the most important and basic work of the while seismic exploration. The key of improving precision is how to improve the quality of the data collection. But, the control and evaluation work for the data quality still have finished by hands till now, always with low efficiency and disturbing. So, China Oil and Natural Gas Corporation decided to design a scientific system for the control quality and evaluation with quantitative analysis.This system will be used in 2D and 3D data quality control .It will meet demand of the work, and improve the work..The thesis introduces the basic work flow of the seismic exploration and the importance of the control quality and evaluation work, putts forward the function requirements of the system in details which is the basic of the whole system design. The thesis introduces the principle of ways which used in the system according to the operation of system.The system includes project control, secondary data analysis, seismic data analysis,surface model analysis,static correct analysis,seismic data process,evaluation, random check, statistics,report. The system has adopted some advanced algorithms as automatic detection of the 2D physical points,remove random noise and regular noise.automatic picking up of the first break time, estimation of resolution ratio and SNR.The method of automatic picking up of the first break time will be introduces in the thesis.The thesis introduces some important application , shows the systematic operation result. Made an introduction to the experimental situation finally, and analyse the result of the test.This system has more advantages , but some defects and deficiencies in the actual test of the field have been found. Among them to improve the automatic appraisal ability of the system and to reduce user's mutual appraisal manipulate are the aspects to be improved important respects constantly in the future.Through improving the system , it can meet the need of the production , and promote development of the control and appraise of improve the quality of the data collection.