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济阳坳陷莱104井太古宇与裂缝发育研究.docx

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济阳坳陷莱104井太古宇与裂缝发育研究 Title:StudyontheDevelopmentofTaiguYuFormationandFractureintheJiyangDepression,WellLai104 Abstract: TheJiyangDepression,locatedintheeasternpartoftheNorthChinaPlate,isoneofthemostimportantpetroleumbasinsinChina.TheTaiguYuFormationisasignificanthydrocarbon-bearingformationinthisarea,andthefracturedevelopmentwithinitplaysacrucialroleindeterminingthereservoirqualityandexplorationpotential.ThispaperpresentsadetailedstudyonthedevelopmentoftheTaiguYuFormationanditsassociatedfracturesbasedontheanalysisofWellLai104intheJiyangDepression. 1.Introduction TheJiyangDepressionhasbeenthefocusofextensivepetroleumexplorationandproductionactivitiesduetoitsvasthydrocarbonresources.UnderstandingthegeologicalcharacteristicsandfracturedevelopmentoftheTaiguYuFormationisimportantforreservoirevaluationandefficienthydrocarbonextractioninthisarea. 2.GeologicalBackground TheJiyangDepressionischaracterizedbycomplexandmulti-stagetectonicevolution,resultingintheformationofvariousstructuralandstratigraphicfeatures.TheTaiguYuFormationisashallowmarinecarbonatereservoir,whichwasdepositedduringtheLatePermian.Itiswidelydistributedandpredominantlyconsistsoflimestonewithinterbeddedmudstone. 3.DataandMethodology Inthisstudy,datafromWellLai104,includingwelllogs,cores,andseismicdata,werecollectedandanalyzed.Petrophysicalanalyseswereperformedtoevaluatethereservoirpropertiessuchasporosity,permeability,andwatersaturation.Fracturedatawereextractedfromimagelogsandcoreanalysestoidentifythefracturecharacteristics. 4.Results ThewelllogsandcoreanalysesrevealedthattheTaiguYuFormationinWellLai104consistsofmultipleintervalswithvaryinglithologyandporosity-permeabilitycharacteristics.Thelimestonelayersexhibithigherporosityandpermeabilitycomparedtothemudstonelayers.Fracturenetworkswereidentifiedwithinthelimestonereservoirintervals,whichgreatlyinfluencedtheporosityandpermeabilitydistribution.Thefracturesweremostlycharacterizedasopen,partiallyopen,orhealedwithvaryingorientations. 5.Discussion Thefracturesi