11379.延長(zhǎng)東區(qū)上古生界本溪組天然氣分布規(guī)律研究

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3、eciality：Name：Instructor：GasdistributionofTheBenxiformationintheupperPaleozoicofEasternofYanchangAreaOrdosBasinGeologicalEngineeringWangXin(signature)WangJianmin(signature)AbstractBenxiformationisallimportantgasreservoir

4、inthesouthofYanChangResearchontherelationshipbetweenreservoircharacteristicsandgasenrichmenthasgreatsignificanceforthefutureexplorationBasedontheresearchandstudyofpredeeessors，usedsedimentologyreservoirgeologynaturalgasg

5、eologypetroleumentrapmentgeologyandlogginggeologyastheinstructionCollectionof150wellsusinggeologicallogging，loggingdata，coreanalysis，analyzingthinsection，scanningelectronmicroscopymercuryandotherinformation，tostudythesed

6、imentarycharacteristics，diagenesis，reservoirphysicalpropertymicroscopicporestrueture，heterogeneityandotheraspectscomprehensiveofBenxiformationandclassificationofreservoirFuthermore，controlsofreservoirisanalyzedAndinvesti

7、gatetherelationshipofreservoircharacteristicsandgasenrichmentTheBenxiformationbelongstotidalflatfacies，thereservoirismainlyoftidalflatquartzsandstone，Benxiformationgasreservoirsaremainlydevelopedinthebarriersanddamandsan

8、dflatsedimentarysandbodyobviouslycontrolledbyfaciesbelt，hasagoodconsistencywiththedistributionoffaciesbeltMechanicalchemicalcompaction，cementationplaydisruptiveeffectsonporositiesdevepment，dissolutionplaysaconstructivero

9、leonitReservoirislowsuperlowporosityandlowlowpermeabilityThereareinterparticleholeouterholeanddissolutionholeTherelationshipofporosityandpermeabilityispositive，whichindicatesthatporositydevelopmentcontrolthepermeabilityR

10、eservoirpropertyandheterogeneityindieatestrongdifferenceinvertiealandplane，becauseoftectonicmovementanddiagenesisenvironmentTheresearchabovesuggestthatthefactorscontrolreservoiraresedimentaryfacies，diagenesisandtectonics

11、Theresultsofthestudyshowthat：thephysicalpropertiesofsandstonereservoirisbetterandthehigherlevelofgassaturation；GasreservoirofBenxiformationbelongstothetypicallithologicreservoirsedimentaryfacies，diagenesisisthemainfactor

12、ingasreservoirsenrichment，whichdeterminesthequalityofthephysicalpropertiesandreservoircapacitysize；Nosestructureandotherfactorshavesomecontr01overthedistributionofoilandgasKeywords：Benxiformation；Tidalflatdeposits；Distri