灘淺海過(guò)渡帶地區(qū)高精度地震資料處理技術(shù)研究.pdf

1、西安石油大學(xué)碩士學(xué)位論文灘淺海過(guò)渡帶地區(qū)高精度地震資料處理技術(shù)研究姓名：張保慶申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：石油與天然氣工程指導(dǎo)教師：譚成仟范哲清20081008英文摘要Subject：ResearchonhighprecisionseismicdataprocessingmethodsintransitionzoneSpeciality：Name：Instructor：ABS。I’RAC’l’Forthespecialgeologicenv

2、ironmentoftransitionzone，seismicdataprocessingofthisareahasitsuniquecharacteristics，SOtheconventionalprocessingmethodscannotsatisfythefurtherdevelopmentofhighprecisionseismicexplorationintheseareasInthispaperspecialmeasu

3、rementsarepresentedtosolvethedifficultproblemsintransitionzone，suchasslowS／N，noise，differenceofphase，amplitudeandfrequencyimaging，andgreatprogressweremadeinseismicdadaprocessingoftransitionzoneInordertemovethenoisethusto

4、improvetheS／N，thesourceinterferenceeliminationmethodisproposed，andcorrespondingprogramiscompiledThemoduleofadaptiveattenuationofhighfrequencynoiseisdevelopedBasedonthecharacteristicsofthemultiple，thecorrespondingstrategy

5、ofmultipleattenuationisputforwardS／NisimprovedgreatlybyusingthesemethodsSecondarypositioningofpiecewisefittingisintroducedtosolvetheproblemofreceiverdrift，whichenhancestheprecisionofthereceivepositionandimprovesworkingef

6、ficiencyAimedatsolvingthedifferenceoftheenergythephaseandthefrequencybetweenthedifferentblocks，surfaceconsistentprocessingmethodsareinvolved，whichincludesurfaceconsistentenergycompensation，surfaceconsistentdeconvolution，

7、surfaceconsistentstaticcorrectionInordertoimprovetheprecisionoftheimaging，asetofestablishingvelocityfieldmethodissummarizedthatiseffectualforcomplicatedgeologyarea，andatthesametimeanisotropicpre—Macktimemigrationisadopte

8、dAccordingtotheoceanbottomcableacquisitiontechniquewhichisintroducedrecently，dualsensorprocessingmethodsaredevelopedWiththeseefforts，asetofseismicdataprocessingstrategyisformed，whichissuitabletothetransitionzoneKeywords：