36579.海拉爾盆地貝爾凹陷大磨拐河組層序地層學(xué)研究

1、北京科技大學(xué)碩士學(xué)位論文海拉爾盆地貝爾凹陷大磨拐河組層序地層學(xué)研究姓名：房金偉申請學(xué)位級別：碩士專業(yè)：礦產(chǎn)普查與勘探指導(dǎo)教師：徐九華20091220北京科技大學(xué)碩士學(xué)位論文StudyonSequenceStratigraphyofDMGHTerminBeirDepression，HailarBasinAbstractThepaperisfocusedonthestudyonDMGHtermstrataofBeirDepression，H

2、ailarBasin，basedonsequencestratigraphyandsedimentarytheoryMakingfulluseofcore，loggingandseismicdatasequencestratigraphyflameisestablishedMoreovercombinedwiⅡlstructuralgeologyfeatureofBeirDepression，spatialdistributionofs

3、edimentaryfaciesandsedimentarysystems，thereservoirgrowthfeatureandthecombinationofoilsourcebed，reservoir，caprockofDMGHformationarestudiedHailarBasinisafaultdepressionattheearlyformingstage，andbecomingadepressionattheendo

4、fNantunstageControlledbythestructuralsedimentarysettingasetofstratafromPalaeozoietoQuaternaryhasbeendepositedinBeirdepression111estratafloraJurassictoCretaceousisdividedintoninestratigraphicsequencesinthearticle，theseque

5、nceboundaryofsequence4andsequence5(equivalenttoDamoguaihegroup)Canbeidentifiedfromthewell，loggingandseismicdataStudieshaveshownthat：welldatafeaturesmainlyincludetheancientsoil，therootsoil，irondisseminated，plantcarbondust

6、ordebris，theriverbedstrandedconglomerate，calcareousnodules，orcalciumjunctionlayerandturbidite，erosionsurfaceincotingdataSequenceboundarymainlymarkedbytheformoftheterminationonseismicreflection(truncationonlap，downlap)Low

7、standfansandlowstandwedgesformedinlowstandsystemtractsofSq4(thatisbottomofDamoguaiheformation)anddeepwaterturbiditefansdeposedinlatetransgressivesystemtractandearlyhi曲standsystemtractarethemajorreservoirwithgoodphysicalc

8、haracteristiesMudstonedepositedindeepwaterenvoirmentofSq5isthebetterregionalsealingbedThedeeplaketurbiditeregionallydepositedinSq5(thatisupperlayerofDamoguaiheformation)withbetterfeatureisalsogoodreservoirInhighstandsyst

9、emtractdeltaplainanddeltafrontarebecomingthemainsedimentarybodiesAttheendofSq5，sedimentaryenvironmentconvertedtofluvialfaciesfromlimneticfaciesOnthebasisofsequenceanalysis，sedimentaryfaciesanalysisandsedimentaryenvironme