［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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