中美页岩气成藏条件_分布特征差异研究与启示(4)

3）我国海相页岩勘探前景最好，其中四川盆地及其周缘地区最为现实；海陆过渡相与煤系页岩难以形成规模区块，勘探潜力有待落实；湖相页岩在主要含油气盆地凹陷中心区已进入生气阶段，可望实现规模开发。

4）美国页岩气的勘探开发经验表明，页岩气从发现到规模开发需要较长的理论创新、技术准备和工业化推广时期，我国在突破理论和技术瓶颈后，未

3

来页岩气年产量可达500亿～600亿m。

在研究过程中，得到翟光明、胡见义、童晓

光、贾承造、袁士义、马永生、胡文瑞、孙龙德、高瑞琪、

致谢

［16］董大忠，程克明，王玉满，等．中国上扬子区下古生界页岩气形成

［J］．石油与天然气地质，2010，31（3）：288－299．条件及特征

Comparisonandenlightenmentonformationconditionanddistribution

characteristicsofshalegasbetweenChinaandU．S．

LiJianzhong，LiDenghua，DongDazhong，WangShejiao

（ResearchInstituteofPetroleumExploration＆Development，Petrochina，Beijing100083，China）

［Abstract］ShalegasinAmericamostlycomesfromthermogenicmarineshales，andgasshalesmainlydis-62中国工程科学

页岩气,非常规能源

tributeinDevonianandCarboniferousofForelandandCratonbasins，whiletheburieddepthis1500～3500m．ShalesinChinainclude3types：marine，transitionalandlacustrine．MarineshalesbasicallydistributeinthelowerPaleozoicofAulacogenandCratonbasins；organic-richconcentratedpartsaresteady-going，andthermalmaturityphaseandgascontentarehigh，sotheexplorationalprospectisthebest．TransitionalshalesmostlydistributeinCarboniferous-JurassicofForelandandCratonbasins；thereisnoobviousorganic-richconcentratedpart，andgascontentchangesgreatly，sotheexplorationalpotentialneedstobeproved．Lacustrineshalestypicallydistributeinrichconcentratedpartsarethickandstable，andexplora-MesozoicandCenozoicofriftandCratonbasins；organic-tionalpotentialisprobablygreatincenterofdepressionwhichreachesgeneratinggasstage．Itisforecastthatshalegasexplorationwilltakealongtimeandoutputwillbe50billion～60billionm3inthefuture．

［Keywords］shalegas；formationcondition；distributioncharacteristics；organic-richshale；comparisonbetweenChinaandU．S．；enlightenment

（上接55页）

Formationconditionsofshaleoilandgasin

Bonansub-sag，JiyangDepression

ZhangShanwen1，WangYongshi2，ZhangLinye2，LiZheng2，

ZhuJiajun2，GongJianqiang2，HaoYunqing2

（1．ShengliOilfieldBranchofSINOPECCo．Ltd．，Dongying，Shandong257001，China；2．TheGeological

ScientificResearchInstituteofShengliOilfieldBranch，SINOPECCo．Ltd．，

Dongying，Shandong257015，China）

Abstract］Throughabundantdataofseism，drilling，logging，mineral，geochemistryandphysicalproper-［

ties，itisconcludedthattheshaleofPaleogeneEs1，LowerEs3andUpperEs4inBonansub-sag，JiyangDepres-sionischaracterizedbywidedistributionandhighabundance，bettertypes（mainlywithtypeIandII）andwidematurityrangeoforganicmatter，withamaterialbasisfortheformationofshaleoilandgasinalargescale．Mean-while，thelowcontentofclaymineralandhighcontentofbrittlemineral（mainlywithcarbonate）inthe3setsofshalearefavorablefortheexploitationofshaleoilandgas．Inaddition，thehighpressurecoefficientandthedevel-opmentofdifferentmicro-poresandmicro-cracksintheshalearealsofavorableforthepreservationofshaleoilandgas，becausethereticularstoragesystemiseasytoformunderthiscondition．Accordingtotheoilandwatersatura-tiondata，theupperofNo．12layertoupperofNo．13layerintheLowerEs3formationarethefavorablelayersforshaleoilandgasexplorationinBonansub-sagbecauseoftheirhighoilandgascontentinunitrock．Especially，asthemostfavorablerocktype，thelamiatedargillaceouslimestonecouldbeeffectivelyexplored．

［Keywords］shaleoilandgas；Paleogene；terrestrialshale；mineralcomposition；organiccarboncontent

2012年第14卷第6期

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