姬15井區(qū)長4+5有利目標(biāo)區(qū)評(píng)價(jià)研究.pdf

1、學(xué)位論文創(chuàng)新性聲明本人聲明所呈交的學(xué)位論文是我個(gè)人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。盡我所知，除了文中特別加以標(biāo)注和致謝中所羅列的內(nèi)容以外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果；也不包含為獲得西安石油大學(xué)或其它教育機(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中做了明確的說明并表示了謝意。申請(qǐng)學(xué)位論文與資料若有不實(shí)之處，本人承擔(dān)一切相關(guān)責(zé)任。論文作者簽名：學(xué)位論文使用授權(quán)的說明本人完

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3、predictionofChang45FormationinJil5AreaSpeciality：Name：Instructor：一#忍燈Ct0m—Lf似i紗I∥ZhengMingke(signature)IIIllIIIIIIIIlUlIIllIY2754784ABSTRACTThispaperinvestigatestheChang45groupofYanchangFormationinJiyuanarea，OrdosbasinMa

4、kefulluseofthecore，loggingandloggingdataIntegratedthesedimentologyandlogginggeologyCloselyResearchstratigraphicdivision，sedimentaryfacies，sandbodydistributionandreservoircharacteristicsChang45reservoirthefavorablezonetar

5、getpreferredstudyareabasedonanalysisofoilreservoirsTheresultsshowthat：TheChang45oilgroupofthestudyareacanbedividedintosandunit45landsandunit452，Maybefurtherdividedinto4511、4512、4521and4522fourmember；Thesedimentaryfaciesm

6、ajorforthedeltafront，andfurthercanbeclassifiedasunderwaterdistributarychannel，underwaterdistributaryBayandunderwaternaturalleveebetweenthebranchmicrofacies；Chan945reservoirrocktypesmainlyfine—grainedfeldspathicsandstoneT

7、heporosityofthemaintypesofintergranularpores，followedbyfeldspardissolutionporosityThemercurycurveflatsectionclearlyshowthatthereservoirbeRersortingChan945reservoirsisalowporosityultralowpermeabilityreservoirsChan945oilgr

8、oup，accordingtothethereservoirclassificationcriteriaanddataanalysisinthisareaismainlyClassIIreservoirs，withawidedistribution，thethickcharacteristicsReservoirtypeismainlyoflithologic、structurallithologicdeposit，reservoire

9、nrichmentiscontrolledbytheoilsource，depositioncondition，reservoirandmanyotherfactorsThewidedistributionofhydrocarbonsourcerocksorientedareaprovidesarichsourceofoilaccumulationpermeablesandstoneandmicrocrackiSthemainchann

10、eloftheoilandgasmigration，alargeareaofdistributionofdeltaunderwaterdistributarychannelsandbodyistheregion’SmostfavorablereservoirFinallyaccordingtothecharacteristicsofoilreservoirsanalysis，theThefavorablezonepreferredtar