珍贵的意思文章编号:1001-6112(2020)04-0575-11㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀doi:10.11781/sysydz202004575
江汉盆地盐间页岩中芳基类异戊间二烯烷烃
特征及对页岩油勘探的意义
马晓潇1,2,黎茂稳1,2,刘㊀鹏1,2,李志明1,2,蒋启贵1,2,陶国亮1,2,钱门辉1,2,鲍云杰1,2,曹婷婷1,2,吴世强3铁柱磨成针
(1.中国石化石油勘探开发研究院,北京㊀100083;2.页岩油气富集机理与有效开发国家重点实验室,江苏无锡㊀214126;3.中国石化江汉油田分公司勘探开发研究院,武汉㊀430223)
财政援助摘要:通过对江汉盆地潜江凹陷王场地区王云11井潜江组潜33下亚段和潜34亚段4个韵律层部分取心样品的全岩热解和有机
抽提物分子地球化学分析,将盐间页岩的沉积环境划分为半咸水 咸水湖相和咸水湖相2种类型㊂前者分布范围相对广泛,沉韩信分油
积水体分层明显,以富含伽马蜡烷和2,3,6-三甲基-芳基异戊间二烯烷烃为特征;后者分布范围相对局限,以较高丰度的3,4,5-
三甲基 芳基异戊间二烯烷烃为特征,同时缺少水体分层的分子标志物证据㊂较高的热解S1含量㊁S1/w(TOC)比值以及与盐间页岩储层埋藏深度不匹配的萜烷Ts/(Ts+Tm)比值和规则甾烷异构化参数分析揭示,盐间页岩中游离油富集段主要分布在半咸皖鱼怎么做好吃
水 咸水环境形成的富有机质纹层发育段,为一定程度的成熟油气沿着顺层微裂缝侧向运移提供了有利场所㊂通过常规甾萜烷
校长用英语怎么说
和芳基异戊间二烯烷烃特殊生物标志物组合分析,提出盐间页岩油勘探应关注潜三段和潜四段内几个最大湖泛面,除了继续王
场构造区开发试验外,应该加大蚌湖洼陷成熟烃源区的勘探力度㊂怀孕可以搬家吗
关键词:芳基类异戊间二烯;生物标志化合物;盐间页岩油;潜江组;潜江凹陷;江汉盆地
中图分类号:TE122.113㊀㊀㊀㊀㊀㊀㊀㊀文献标识码:AArylisoprenoidsandtheirsignificanceforinter⁃saltshaleoilexplorationintheJianghanBasin
MAXiaoxiao1,2,LIMaowen1,2,LIUPeng1,2,LIZhiming1,2,JIANGQigui1,2,
TAOGuoliang1,2,QIANMenhui1,2,BAOYunjie1,2,CAOTingting1,2,WUShiqiang3
(1.SINOPECPetroleumExplorationandProductionResearchInstitute,Beijing100083,China;2.StateKeyLaboratoryofShaleOilEnrichmentMechanismsandEffectiveDevelopment,Wuxi,Jiangsu214126,China;3.ResearchInstituteofExplorationandDevelopmentofSINOPECJianghanOilfieldCompany,Wuhan,Hubei430223,China)Abstract:Fifteeninter⁃saltshalecoreswerecollectedfromthewellWY11,QianjiangSag,JianghanBasin,andthesamplingintervalsincludefourofthesaltcyclesintheEq3MemberoftheEogeneQianjiangFormation.Bulkgeochemicaldatawereobtainedbywholerockpyrolysis,andgasch
romatography-massspectrometry(GC-MS)analyseswereconductedformolecularcompositionsofsaturatedandaromaticbiomarkers.Ourresultsseparatedtheanalyzedsamplesintotwobroadcategoriescorrespondingtobrackish-salineandsalinelacustrinesettings.Inter⁃saltshalesdepositedinthebrackish-salinelakesoccuroverlargegeographicareaswithrelativelystrongwatercolumnstratification,andarecharacterizedbythepresenceofabundantgammaceraneand2,3,6⁃trimethyl⁃arylisoprenoidalkanes.Incontrast,inter⁃saltshalesdepositedinsalinelakestendtodistributeinsmallareas,andthepresenceofabundant3,4,5⁃trimethyl⁃arylisoprenoidalkaneswithlowercontentsofgammaceraneisconsistentwithrelativelyshallowwaterdepth.HighpyrolysisS1contents,S1/w(TOC)ratios,Ts/(Ts+Tm),and20S/(20S+20R)and(αββ/ααα+αββ)ratiosofC2
9steranesaregoodindicatorsfortheinter⁃saltshalesthatweredepositedinthebrackish-salinesettingsandareidealhabitatsforlacustrineshaleoilenrichment,sincethepresenceoforganicrichlaminafavortheupdip,lateraloilmigrationalongthebeddingparallelmicrofractures.Accordingtothecommonhopaneandsteraneparametersaswellasarylisoprenoidbiomarkerdistributions,itissuggestedthatinter⁃saltshaleoil收稿日期:2020-05-01;修订日期:2020-06-28㊂
作者简介:马晓潇(1989 ),女,博士,助理研究员,从事石油地质研究㊂E⁃mail:maxiaoxiaocool@163.com㊂
寝室基金项目:国家科技重大专项(2017ZX05049)和国家重点基础研究发展计划(973计划)项目(2014CB239100)资助㊂㊀第42卷第4期2020年7月㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀石㊀油㊀实㊀验㊀地㊀质PETROLEUMGEOLOGY&EXPERIMENT㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀㊀Vol.42,No.4Jul.,2020