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The Study Of The Seismic Data Acquisition Method

Posted on:2013-07-15Degree:MasterType:Thesis
Country:ChinaCandidate:W P WangFull Text:PDF
GTID:2230330374976772Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Seismic data acquisition phase is the first phase of the final results of seismic exploration, which is the Seismic exploration instruments produce field seismic records, These seismic recording seismic data processing and interpretation of the original basis and foundation, Only get accurate seismic profile we can tracking the deep layer and providing a basis for oil-gas exploration, so the acquisition phase of work is particularly important.However, in the face of complex near surface velocity structure and topography as well as deep and complicated geological structure, seismic exploration becomes more and more difficult. Complex exploration environment on seismic wave field, reflected waves events have a strong modulation, distortion effects, static correction, and no wave distortion caused by static correction problem, there are faults breakpoints and deep structure is not clear, reflection wave group is not continuous, from deep weak energy of reflected wave low signal-noise ratio, and so on. So if you want to get better seismic profile, want to take effective acquisition method in petroleum exploration, the interference wave, surface structure analysis, studies of interference wave types and surface structure characteristics, combined with the excitation, receiving parameters demonstration of detector, graphics portfolio analysis its directional characteristics, and the establishment of geophysical modeling the use of ray tracing analysis, seismic wave propagation path, there is a blind area, kinematic characteristics, test the full wave field wave equation forward modeling study on the kinetic characteristics of wave field, seismic acquisition parameters and observing system demonstration and optimization, and analysis of acquisition methods adaptability.
Keywords/Search Tags:Interference wave, shooting and receiving, observation system, geophonearray directivity, forward simulation
PDF Full Text Request
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