简介：古生代的Wufeng-Longmaxi页岩是为在四川盆的页岩气体探索的主要地平线之一。露头，核心和薄节观察，X光检查衍射分析，踪迹元素地球化学和另外的方法被用来理解沉积特征并且在北贵州省在Wufeng-Longmaxi页岩在合适的沉积paleoenvironments识别烃来源岩石。从20～200m和它的Wufeng-Longmaxi形成范围的厚度主要在深海的架上被扔。TOC内容高，直到5.75%。主要非器官的矿物质是由岩屑形成的石英和泥土矿物质，与一点斜长石长石，钾长石，方解石，白云石和黄铁矿。也有源於生物的微晶质的石英。六张岩相被识别了：硅质的页岩，泥土页岩，石灰质的页岩，淤泥的页岩，碳的页岩，和泥泞siltstone。用生物Ba，V/(V+Ni)，TOC，V/Cr，B，Sr/Ba和另外的指示物，我们估计Wufeng-Longmaxi免职的早阶段发生在强壮的缺氧的条件下面的主要生产率，氧化还原作用条件和paleosalinity和表演，高paleosalinity并且产出一个高TOC内容和优秀潜在的页岩气体来源。缺氧的环境在Wufeng-Longmaxi免职的迟了的阶段被破坏，TOC内容减少了，以便它是可能的是高质量的来源岩石。因为在页岩的关键水库空间，和毛孔主要是mesopose，器官的毛孔行动了，与大多数毛孔直径不到20nm。硅质的页岩让高TOC内容和易碎的矿物质(石英)满足为页岩油和煤气的探索使它成为一个重要探索目标。

简介：TherearethreetypesofshalegasresourcesinChina.Theresourcesarepresentinlargeamountsandarewidelydistributed.Marinefacies,transitionalfaciesandcontinentalfaciesresourceseachaccountforathird.Basedonresourcedistributions,therearemanywellspenetratedintotheSinian,Cambrian,Ordovieian,Silurian,Devonian,CarboniferousandPermianstrataoftheYangtzeplateanditsperiphery,theNorthChinaCratonandtheTarimBasin.ManyyearsofexplorationhaveindicatedthatthemarineSilurianLongmaxishalegasiswidelydistributedinsouthChinaandhasbeenindustrializedinitsproductionintheSiehuanbasin.TheshalegasfromtheCambrianNiutitangFormationandtheSinianDoushantuoFormationareimportantdiscoveriesinYichang,HubeiandZhenba,Shanxi.TherearealsoshalegasresourcesfoundwithintransitionalfaciesandcontinentalfaciesindifferentareasinChina.The"twoelementenrichmenttheory"hasbeensummarizedduringtheexplorationprocessofSilurianmarineshalegasintheSichuanBasin.Inaddition,horizontaldrillingandfracturingtechnologiesupto3500mindepthhavebeendeveloped.BasedontheunderstandingofshalegasaccumulationinacomplextectoniczoneoutsidetheSichnanbasin,apreliminarysummaryoftheformationofthe"conversefaultsynelinecontrolreservoir"and"paleoupliftcontrolreservoir"modelhasbeenconstructed.Thedominanttheoryof"Trinity"shalegasenrichmentandthehighyieldofthe"deepwaterLuPengxiangsedimentaryfaciesbelt,structuralpreservationconditionsandoverpressure"issummarized.Guidedbytheabovetheories.AnyelwellinGuizhouandEyangyelwellinHubeiweredrilled."Fourstorey"oilandshale"gasisfoundinthePermianQixiagroup,theSilurianShiniulanFormation,theLongmaxiFormationandtheOrdovicianBaotaFormationinAnyelwell.GoodshalegashasbeengoundintheCambrianNiutitangformationinianDoushantuoformationinEyangyelwell.Thispaperaimstosummarizeandreviewthemainprogress,theoreticaltech

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简介：一个沉积地质的模型被建立以便学习隧道沙身体的地震思考特征。合成地震射击集合用声学的波浪方程被模仿然后prestack时间被移植。在想象的数据上，思考特征和即时属性被分析，抑制木头的阻抗倒置被测试。因为波浪领域干扰，试验性的结果证明地震事件毫无疑问不对应于隧道沙身体并且出现的地震模式不代表实际的。波浪干扰形成的地震事件可以在沙身体解释导致错误和陷井。在即时地震属性和沉积的沙之间的相应关系很好没被建立。抑制木头的阻抗倒置改进隧道沙的决定。然而，如果转换分辨率被强迫太高，与起始的模型有关的人工制品可以发生。

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简介：Thereisadearthofinformationaboutthedistributionoftraceelementsinkerogenfromshalerocksdespiteseveralreportsontraceelementcompositioninmanyshalesamples.Inthisstudy,traceelementsinshalerocksandtheirresidualkerogensweredeterminedbyinductivelycoupledplasma–massspectrometry.Theresultsfromthisstudyshowredox-sensitiveelementsrelativelyconcentratedinthekerogensascomparedtotheshales.Thismaybeprimarilyduetotheadsorptionandcomplexationabilityofkerogen,whichenablesenrichmentinNi,Co,Cu,andZn.Fortherareearthelements(REEs),distinctdistributioncharacteristicswereobservedforshalesdominatedbyterrigenousmineralsandtheirkerogencounterparts.However,shaleswithlessinputofterrigenousmineralsshowedsimilarREEdistributionpatternstotheirresidualkerogen.ItisspeculatedthatthedistributionpatternsoftheREEsinshalesandkerogensmaybesourcerelated.

简介：ThereareplentyofSinianandCambrianpotentialshalegasresourcesinSouthChina,whichischaracterizedbyhighthermalevolutiondegrees,poordrillingperformancesandonlyoccursinlocalareas.Takingtheprinciple“hightofindlow”isthekeyissuetoachievingabreakthroughinoldershale.ChinaGeologicalSurveydrilledintheperipheryoftheProterozoicbasement,i.e.theHuanglinganticline,inthewesternHubei,andHannanpaleocontinentinthesouthernShanxi.Itreceivedhigh-qualitygas-bearingshalewithrelativelylowRointheinLowerCambrianNiutitangformationandSinianDoushantuoformation.BasedongeologicalconditionsofshalegasreservoirsintheHuanglinganticline,thispaperputsforwardthenewmodelnamed“Controloverreservoirsbyperipheryofbasement”aboutshalegasaccumulation,suggestingthattheshaledepositedinadeepwatercontinentalshelfintheperipheryofthebasementischaracterizedbyshallowburial,ashortburialtime,stabletectonics,relativelylowthermalevolutiondegrees,andshalegasreservoirsinagoodcondition.TheshaleoftheSinian-CambrianstratadepositedindeepwatercontinentalshelvesintheperipheryofChuanzhongpaleo-upliftinSichuan,HannanpaleocontinentinthesouthernShanxi,HuanglinganticlineinwesternHubeiandJiangnang-Xuefengpaleo-upliftinHunanandGuizhouprovincehavegoodshalegasexplorationpotential.

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简介：这研究在Jiaoshiba区域和煤气的累积模式的Longmaxi形成基于沉积条件，器官的地球化学，存储空格，物理性质，岩性学和页岩气体水库的煤气的内容被总结然后与那相比在北美洲。在在Jiaoshiba的Longmaxi形成的页岩气体水库有好地质的条件，优秀页岩的大厚度，高器官的满意的、高煤气的内容，好物理性质，合适的深度，好保藏条件和好水库类型。在深架的底部的优秀页岩是为页岩气体探索和开发的主要目标间隔。在Longmaxi形成的页岩气体经历了三个主要reservoiring阶段：烃产生和压缩的早阶段页岩气体水库是什么时候，首先形成了；深埋葬和大规模烃产生的中间的阶段，它与页岩气体引起了水库的丰富；迟了的阶段高举，侵蚀和破裂开发当页岩气体水库最后被形成时。

简介：1.ObjectiveLarge-scalecommercialproductionofshalegasstartedinFuling,ChangningandWeiyuanareasoftheSichuanBasin(Zouetal.,2016)since2010.ThemostnotableshalegassuccessistheLongmaxiorganicrichShaleinJiaoshibafield,SichuanBasin.TheYichangslopeislocatedinthenorthofmiddleYangtzeregion.Thiseastwarddippingslopeisanewprospectiveareaforshalegasexplorationinrecent5years.

简介：InordertomakeabreakthroughinMesozoic-PaleozoicshalegasexplorationintheSouthYellowSeaBasin,acomparisonofthepreservationconditionswasmadewithintheBarnettshalegasreservoirsintheFortworthBasin,theJiaoshibashalegasreservoirsinSichuanBasinandpotentialshalegasreservoirsinGuizhouProvince.Theresultsshowthatthe"Sandwich"structureisofgreatimportanceforshalegasaccumulation.Thereinto,the"Sandwich"structureisakindofspecialreservoir-caprockassemblagewhichconsistoflimestoneordolomiteonthetop,mudstoneorshalelayerinthemiddleandlimestoneordolomiteatthebottom.InconsiderationoftheMesozoic-PaleozoieintheLowerYangtze,andLaoshanUpliftwithweakPaleozoicdeformationandthrustfaultsealingOnbothflanksoftheLaoshanUplift,aconclusioncanbedrawnthatthepreservationconditionsofshalegasprobablydeveloped"Sandwich"structuresintheLowerCambrianandPermian,whicharekeylayersforthebreakthroughofshalegasintheSouthYellowSea.Moreover,thepreferredtargetsforshalegasdrillingprobablylocateatbothflanksoftheLaoshanUplift.

简介：AfterthebreakthroughofshalegasexplorationanddevelopmentintheOrdovicianWufengFormation(Fm.)andSilurianLongmaxiFm.ofChongqingJiaoshibaarea,Changning-Weiyuanarea,etc.inSichuanbasin,aseriesofdiscoveryandbreakthroughwereobtainedbyChinaGeologicalSurveyintheCambrianNiutitangFm.andSinianDoushantuoFm.shaleoftheareaswithcomplicatedstructureoutsideSichuanbasin.BasedontheunderstandingofthelawofshalegasenrichmentinLongmaxiFm.inthebasin,thispaperputsforwardthreeelementsoftheformationandenrichmentofshalegas,whicharethe“Source”,the“Diagenesis”andthe“Accumulation”,afterdeeplystudyingthelawshalegasenrichmentandaccumulationinSinian-Cambrianreservoirofthecomplexstructureareaoutsidethebasin.The“Source”meansthesedimentaryenvironmentandpetrologicalcharacteristicsoforganicshale.The“Diagenesis”meansthebasintectonicsubsidenceandhydrocarbongenerationandexpulsionprocessoforganicmatter.The“Accumulation”meansthetectonicupliftandshalegaspreservation.ItisproposedthattheSinian-CambrianandOrdovician-SilurianblackshaleseriesinthemiddleandupperYangtzeregionofsouthernChinawerebothformedinthedeep-watershelfenvironmentofrifttroughandforelandbasinrespectively.Thedessertintervalswereformedinthestrongreductionenvironmentundertransgressivesystemtract.Theshalelithologybelongstocalcium-siliceousandcharcoal-siliceousrespectively.BasedonthesummaryofstructuralevolutioninYangtzearea,thecorrelationofstructuralburialdepthwithshalediagenesisandthecouplingevolutionoforganicmatterwithporestructurearediscussed.Combiningwithstructuralstyles,thepreservationconditionsofshalegasarediscussed.Fivetypesofshalegasreservoircontrolmodelsarefurtherdescribed.Twotypesoffutureexplorationdirections,whicharereversefaultsynclineandpaleo-upliftmarginincomplexstructuralareaoutsidethebasin

简介：基于井核心，薄节和FESEM的观察，把指示物，水库特征和S字4-Esx的页岩油丰富的控制因素与X光检查衍射，物理性质测试和geochemical相结合在Jiyang消沉的3页岩被详细说明分析。研究证明碳酸盐和泥土矿物质在页岩被统治。根据三角图表，TOC内容(2%和4%)，碳酸盐和泥土矿物质，九张岩相被识别了。水库空间类型富于页岩，在哪个，把压成薄片的破裂，再结晶intracrystalline毛孔和器官的毛孔是高质量的水库空格。页岩油丰富被生产烃的潜力和水库能力主要决定。烃--生产能力被器官的地球化学指示物，为学习区域的特别TOC内容，和器官富人的页岩的厚度控制。水库能力被岩相，TOC内容和结构的活动主要影响。另外，页岩采油被页岩的fracability影响，它被岩相主要控制，结构的活动，形成压力，等等。页岩油水库评估应该集中于TOC内容，器官富人的页岩的厚度，岩相和结构的因素。

简介：Multiplesetsoforganic-richshalesdevelopedintheUpperPaleozoicofthenorthwesternGuizhongDepressioninSouthChina.However,theexplorationoftheseshalesispresentlyatarelativelyimmaturestage.TheUpperPaleozoicshalesinthenorthwesternGuizhongDepression,includingtheMiddleDevonianLuofushale,theNabiaoshale,andtheLowerCarboniferousYanguanshale,wereinvestigatedinthisstudy.Mineralcompositionanalysis,organicmatteranalysis（includingtotalorganiccarbon（TOC）content,maceralofkerogenandthevitrinitereflection（Ro））,porecharacteristicanalysis（includingporosityandpermeability,poretypeidentificationbySEM,andporesizedistributionbynitrogensorption）,methaneisothermalsorptiontestwereconducted,andthedistributionandthicknessoftheshalesweredetermined,Thenthecharacteristicsofthetwotargetshaleswereillustratedandcompared.TheresultsshowthattheUpperPaleozoicshaleshavefavorableorganicmatterconditions（mainlymoderatetohighTOCcontent,typeⅠandⅡ_1kerogenandhightoovermaturity）,goodfracabilitypotential（brittlenessindex（BI）〉40%）,multipleporetypes,stabledistributionandeffectivethickness,andgoodmethanesorptioncapacity.Therefore,theUpperPaleozoicshalesinthenorthernGuizhongDepressionhavegoodshalegaspotentialandexplorationprospects.Moreover,theaverageTOCcontent,averageBI,thicknessoftheorganic-richshale（TOC〉2.0wt%）andtheshalegasresourcesoftheMiddleDevonianshalesarebetterthanthoseoftheLowerCarboniferousshale.TheMiddleDevonianshaleshavebettershalegaspotentialandexplorationprospectsthantheLowerCarboniferousshales.

简介：这份报纸在Paleogene的Shahejie形成在Dongying消沉在页岩水库上被进行。基于详细核心描述，摇薄节，擦亮的氩离子，扫描电子显微镜学(SEM)分析，CT扫描和碳氧同位素的测试，inter-laminar的形成机制断裂(或缝接)并且他们的发展条件被diagenetic进化特征和水库空间进化特征的全面分析讨论。结果证明在Dongying消沉的把压成薄片的合成模式被把压成薄片的方解石和泥土矿物质的垂直分发统治。形成对照到传统的理解，inter-laminar破裂的发展度低得多。没有框架矿物质，和微缝接是的先存在的很好连接的毛孔或水平过压，在层之间的纯液体不能存在液体移植的有利路径。从inter-laminar破裂起源机制和它的进化的点，所谓的缝接，比那烃代提起了毛孔压力并且导致了平行microfractures的传统的理解是更多建筑群。但是inter-laminar破裂与那有小关系迭合是否被开发或床上用品边界是清楚的。事实上，页岩水库inter-laminar破裂不是严密骨折。他们被先存在控制内部小粒的毛孔(或缝接)或溶解毛孔，散布了碳酸盐薄片边界并且被以后的超级压力连接，溶解和渗出物力量。并且开发条件是埋葬深度(比3000m大)并且Ro值(>0.6%)。它的起源和进化的讨论有重要石油优化水库片断和有利目标区域选择上的地质的意义。

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简介：Inorganic-richgasshales,claymineralsandorganicmatter(OM)havesignificantinfluencesontheorigin,preservation,andproductionofshalegas.Becauseofthesubstantialroleofnanoscaleporesinthegeneration,storage,andseepageofshalegas,weexaminedtheeffectsofclaymineralsandOMonnanoscaleporedistributioncharacteristicsinLowerPaleozoicshalegasreservoirs.UsingtheNiutitangandLongmaxishalesasexamples,wedeterminedtheeffectsofclaymineralsandOMonporesthroughsedimentationexperiments.Fieldemission–scanningelectronmicroscopycombinedwithlow-pressureN2adsorptionofthesamplesbeforeandaftersedimentationshowedsignificantdifferencesinporelocationandporesizedistributionbetweentheNiutitangandLongmaxishales.NanoscaleporesmostlyexistedinOMintheLongmaxishaleandinclaymineralsorOM–claycompositesintheNiutitangshale.Thedistributiondifferenceswereattributedlargelytovariabilityinthermalevolutionandtectonicdevelopmentandmightaccountforthedifferenceingas-bearingcapacitybetweentheNiutitangandLongmaxireservoirs.Inthenanoscalerange,mesoporesaccountedfor61–76%oftotalnanoscaleporevolume.ConsiderablydevelopednanoscaleporesinOMweredistributedinabroadsizerangeintheLongmaxishale,whichledtogoodporeconnectivityandgasproduction.Numerousnarrowpores(i.e.,pores\20nm)inOM–claycompositeswerefoundintheNiutitangshale,andmightaccountforthisshale’spoorporeconnectivityandlowgasproductionefficiency.Enhancingtheconnectivityofthemesopores(especiallypores\20nmandthosedevelopedinOM–claycomposites)mightbethekeytoimprovingdevelopmentoftheNiutitangshale.ThefindingsprovidenewinsightintotheformationandevolutionarymechanismofnanoscaleporesdevelopedinOMandclayminerals.

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简介：Sedimentaryfaciesisanimportantfactorinfluencingshalegasaccumulation.Itnotonlycontrollshydrocarbongeneration,butalsoaffectsreservoircharacteristicsanddistribution.ThispaperdiscussestheLowerSilurianLongmaxiFormationinthesouthoftheSichuanBasin.Outcrop,core,drillingandloggingdataidentifythesedimentaryfaciesoftheformationascontinentalshelffacies,whichisdividedintotwosubfacies:aninnershelfandanoutershelfsubfacies.Thesetwosubfaciescanbefurtherdividedintosevenmicrofacies:muddysiltyshallowshelf,calcareoussiltyshallowshelf,muddylimyshallowshelf,stormflow,muddydeepshelf,siltymuddydeepshelfandcontourcurrentmicrofacies.Verticalandhorizontaldistributionofmicrofaciesestablishesasedimentationmodelofthecontinentalshelffacies.Combinedwithanalizationorcalculationofgeochemical,mineralogical,physicalandgas-bearingpropertiesofsamples,sedimentarymicrofaciesisevaluatedusingnineparameters:totalorganiccarboncontent,effectiveshalecontinuousthickness,vitrinitereflectance,kerogentype,mineralcomponents,porosity,permeability,watersaturationandgascontent.Theevaluationrevealedthatthemostfavorablefaciesforshalegasexplorationanddevelopmentarethemuddydeepshelfandpartofthesiltymuddydeepshelfmicrofacies,withTOCmorethan2%,siliceouscomponentover50%,claylessthan30%,porositymorethan3%,watersaturationlowerthan40%,gascontentgreaterthan2m3/t.Theseresultsprovideatheoreticalbasisfordeciston-makingonthemostpromisingareasforshalegasexplorationintheSichuanBasinandformarineshalegasexplorationanddevelopmentinSouthChina.

简介：页岩parasequence分析是顺序地层学sudies的重要部分。这篇论文为包括他们的描述，部门，特征和起源分析页岩parasequences建议了一个系统的研究方法。部门方法根据岩相被建立。多方法分析和相互的确认被使用辅助指示物实现(例如矿物质作文，geochemical指示物和小浪价值)。典型页岩parasequence包括加深水深度的更低的间隔和shallowing水深度的上面的间隔(例如，包括高总数的器官的碳(TOC)的页岩parasequenceshale-low-TOC胶的页岩)。黄铁矿内容的突然的增加，TOC价值，相对的烃产生潜力((S1+S2)/TOC)，并且小浪价值parasequence边界是指示的。建议研究方法被使用学习上面在Dongying消沉的Shahejie形成的第四个成员，Bohai海湾盆。有parasequences的七种类型的结果表演发展了。单个的A和双结构化的parasequences被识别。控制页岩parasequences的发展的三个因素包括相对的湖水平变化，陆上的输入和违反被识别。high-TOC的发展(>2%)页岩parasequences被生物、化学的沉积主要控制。low-TOC(<2%)页岩parasequences被化学沉积主要扔。页岩parasequences的差异被包括气候，相对的湖水平变化，陆上的输入和紧急情况控制因素的四个学生引起(例如，违反)。