黄骅坳陷北大港构造带古近系沙河街_省略_地层格架及其对储层非均(8)

NEWINFORMATIONONTHETERTIARYBIOSTRATIGRAPHYOF

THENINGMINGBASIN,GUANGXI

KUANGGuo-dun,CHENGeng-jiao

1)

2)3)4)

,CHENYun-fa

2)5)

andHUANGZhi-tao

2)

(1)GuangxiInstituteofGeology,Nanning,530023;2)GuangxiMuseumofNaturalHistory,Nanning,530012;3)InstituteofVertebratePaleontologyandPaleoanthropology,theChineseAcademyofSciences,Beijing,100044;

4)GraduateSchooloftheChineseAcademyofSciences,Beijing,,100039;

5)ChengduUniversityofTechnology,Chengdu,610059)

Abstract　Biostratigraphicalstudiesbasedonfossilsporo-pollen,macro-plantsandfisheswerecarriedout

ontheTertiaryprofileintheNingmingBasin,Guangxiinrecentyears.ItsageisOligocenebasedonthefossilsporo-pollensandmacro-plants,andearlyMioceneorlateOligoceneageonthefishes.

Keywords　biostratigraphy,fossiloffish,sporo-pollens,macro-plant,NingmingBasin,Guangxi,Ter-tiary

(上接第361页)

HIGH-RESOLUTIONSEQUENCE-STRATIGRAPHICFRAMEWORKAND

ITSCONTROLONTHERESERVOIRHETEROGENEITIESOF

BEIDAGANGTECTONICBELTINHUANGHUASAG

FANLe-yuan,ZHUXiao-min,SONGKun,ZHUWen-chun,andXIENan

(1)ChinaNationalLoggingCorporation,Beijing,100724;

2)FaultyofNaturalResourcesandInformationTechnology,UniversityofPetroleum,Beijing,102249;

3)No.1ProductionPlant,theDagangOilfield,Tianjin,300280)

1)

2)

3)

3)

2)

Abstract　Evolutionofthesequenceofthecontinentalbasinsreflectstheperiodicchangesoflakewaterregime.Thusthereactingsequenceofthelacustrinedepositsexpressesthegenetichistoryoftheoilandgaspool.Inthestudyarea,2long-termcycles,8medium-termcyclesand43short-termcycleswereiden-tifiedandcorrelated.Accordingtotheprocess-responseanalysisinthebase-levelcycles,reservoirhetero-geneitiesanditsrelationtobase-levelarediscussed.Ourresearchshowsthatreservoirdistributionanditsheterogeneitieswereobviouslycontrolledbythebase-level.Thebase-levelcontrolledthepropertyofsand-body.Theshort-termcyclecontrolledthecharacteristicofheterogeneitiesinsandbody,andthemedium-andlong-termcyclecontrolledtheinter-layerheterogeneities.Onthelowerlocationofthemedium-andlong-termbase-level,thesandbodyiswelldeveloped,withawideareaandgreatthickness,whileonthehighlocationofthebase-level,thereisanoppositereservoircharacter.

Keywords　highresolutionsequencestratigraphy,base-level,reservoirheterogeneities,prospective

reservoir,Paleogene,ShahejieFormation,Huanghua,Tianjin