Title: Block pursuing method for three-dimensional seismic offset imaging
Application Number: 200610047209 Application Date: 2006.07.17
Publication Number: 1888934 Publication Date: 2007.01.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01V1/28
Applicant(s) Name: Shi Dianxiang Address:
Inventor(s) Name: Shi Dianxiang
Attorney & Agent: song tiejun
Abstract:
    This method calculates the data of earthquake reflect wave by the handy arithmetic and puts into the disposal soft flat roof of earthquake data to form the imaging and confirm the best position for well or other underground resource. It extends the double sweeping method of two-dimension positive definite tridiagonal coefficient matrix to the divide approaching of three-dimension partitioned tridiagonal coefficient matrix, completes the fast and veracious wavefield extrapolation of three-dimension earthquake data and really uses the three-dimension FD-TD excursion imaging disposal technology into the prospecting industry. It solves the problem about great account quantity, badness precision, chaos phenomenon without avoiding and direction aberration without overcoming in existing technology. It keeps the round symmetric features in wavefield diffuseness to assure the final imaging definition. Its cost is acceptant to industry production for its higher account efficiency than tradition method
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