预览加载中，请您耐心等待几秒...

东濮坳陷上古生界烃源岩生烃演化研究.docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

东濮坳陷上古生界烃源岩生烃演化研究 摘要 烃源岩是油气勘探和开发的重要资源，因此烃源岩的生烃演化研究对于油气勘探和开发至关重要。东濮坳陷是散布在华东地区的重要油气盆地，本文研究了该区上古生界烃源岩的生烃演化过程，利用岩石学、有机地球化学和地球化学方法，从有机质类型、成熟度、成因等方面对烃源岩生烃演化进行了探讨。研究结果表明，东濮坳陷上古生界烃源岩具有一定的生烃潜力，适合油气勘探和开发。 关键词：东濮坳陷；上古生界；烃源岩；生烃演化 Abstract Hydrocarbonsourcerocksareimportantresourcesforoilandgasexplorationanddevelopment.Therefore,thestudyonthehydrocarbongenerationandevolutionofsourcerocksiscrucialforoilandgasexplorationanddevelopment.DongpuDepressionBasinisanimportantoilandgasbasinscatteredinEastChina.ThispaperstudiesthehydrocarbongenerationandevolutionoftheUpperPaleozoicsourcerocksinthisarea.Usingpetrological,organicgeochemicalandgeochemicalmethods,thehydrocarbongenerationandevolutionofsourcerockswereexploredfromtheperspectivesoforganicmattertype,maturity,andorigin.TheresultsshowthattheUpperPaleozoicsourcerocksinDongpuDepressionBasinhavecertainhydrocarbongenerationpotential,whichissuitableforoilandgasexplorationanddevelopment. Keywords:DongpuDepressionBasin;UpperPaleozoic;sourcerock;hydrocarbongenerationandevolution 1.Introduction Hydrocarbonsourcerocksarethekeytooilandgasexplorationanddevelopment,andthestudyofhydrocarbongenerationandevolutionofsourcerocksisofgreatsignificanceforoilandgasexplorationanddevelopment.TheDongpuDepressionBasin(DPD)isanimportantoilandgasbasininEastChina,whichisscatteredoveralargeareainShandongProvince,withanareaofabout10,000squarekilometers.TheUpperPaleozoicinDPDisthemainhydrocarbon-bearingstrata,andthesourcerocksprovideimportanthydrocarbonresources.Therefore,thestudyonthehydrocarbongenerationandevolutionofsourcerocksinDPDhasgreatsignificanceforoilandgasexplorationanddevelopment. 2.Geologicalbackground TheDongpuDepressionBasinislocatedinthewesternpartofShandongProvince,withatectonicpatternofthe“NE-SWtrendingfaultsandfolds”system.TheUpperPaleozoicstratainDPDmainlyincludethePermianandCarboniferous,whicharecomposedofshale,sandstone,andconglomerate. 3.Method Throughfieldgeologicalsurvey,coreobservation,petrologicalobservation,andorganicgeochemicalanalysis,