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Analysis And Process Apply With Seismic Wave Impedance Inversion Of Synthetic Record

Posted on:2015-05-20Degree:MasterType:Thesis
Country:ChinaCandidate:B YangFull Text:PDF
GTID:2180330422985457Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Since the Coal and Petroleum Resources were exploited by human, have beencomsumed more than one century for main resources of produce and live, comsuming thenon-renewable energy led to the serious problem of resources shortage, so the higherrequirement was proposed for the resource exploration technology. The resource that waseasy to exploited and mined almost has been mined over, nowadays, the target of coalexploration has developed to greater depth, complex topography and so on, the requirementof new technology and exploit method become urgent day by day. The normal seismic stacksection wouldn’t meet explain requirement to coal geology for explain man, new explainmethods in high resolution were urgent needed. The impedance inversion section meet therequirement well, it improve the explain job to the research of reservoir, led the structureexploration to rock exploration.The paper aim at impedance inversion, understand currently development of impedanceinversion, study the theory of all kinds of inversion method, use Jason GeoscienceWorkbench that usual used software for impedance inversion at the base of well understand,choose the Constrained Sparse Spike Inversion (CSSI) and Recursive Inversion that welldeveloped for inversion, aimed at the coal thickness, the velocity of surrounding rock, thevary of coal quality(coal seam velocity), the quality of seismic collection, synthetic modelwith convolution theory, simulation different coal seam bury, and synthetic model with welllog curve, contrast and discuss the inversion result.Than, inverse the Tabei seismic stack insection with the CSSI, analysis the advantage ofimpedance inversion to seismic stack section, and analysis the reservoir and its spread, it hasguidance to practical work.At last, summary the conclusion of this paper, propose suggestions and problems.
Keywords/Search Tags:coal seam, impedance inversion, Constrained Sparse Spike Inversion, Recursive Inversion
PDF Full Text Request
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