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1、第33卷第9期地質(zhì)通報(bào)Vo1.33.No.92014年9月GEoLoGICALBULLETINOFCHINASep.,2014鄂爾多斯盆地東南部油頁巖資源評價(jià)李玉宏,姜亭,武富禮,張慧元,姚志剛2,王寶文LIYii—hong,JIANGTing,WUFu—li,ZHANGHui—yuan,YAOZhi—gang,WANGBao—wen1沖國地質(zhì)調(diào)查局西安地質(zhì)調(diào)查中心,陜西西安710054;2.西安石油大學(xué),陜西西安7100651.Xi"anCenterofChinaGeologicalSurvey,Xi"an710054,Shaanxi,China;2.Xi'anPetrol
2、eumUniversity,Xi'an710065,Shaanxi,China摘要:鄂爾多斯盆地蘊(yùn)藏著豐富的油頁巖資源,積累了大量測井系列齊全的石油鉆探資料,但針對油頁巖的調(diào)查評價(jià)工作程度低,可利用的含油率數(shù)據(jù)十分有限,難以準(zhǔn)確評價(jià)油頁巖資源量。利用陜西銅川地區(qū)油頁巖探井的測井與含油率分析資料,結(jié)合△1o方法,建立了該區(qū)油頁巖含油率測井解釋模型,可較準(zhǔn)確地識別油頁巖層段和解釋計(jì)算含油率。在此基礎(chǔ)上,利用大量的油氣井測井資料解釋含油率、識別和統(tǒng)計(jì)油頁巖厚度,對13×10km工作區(qū)內(nèi)三疊系延長組長7油頁巖資源量進(jìn)行了評價(jià),估算油頁巖分布面積為1.08xlOkm2,預(yù)測遠(yuǎn)景資源量為
3、3866x10t,干餾油頁巖油遠(yuǎn)景資源量為179x10t,具有形成大型一特大型油頁巖礦產(chǎn)地的資源潛力,為該區(qū)油頁巖勘查利用提供了重要依據(jù)。關(guān)鍵詞:鄂爾多斯盆地;油頁巖;含油率;測井評價(jià);資源量中圖分類號:P618.12文獻(xiàn)標(biāo)志碼:A文章編號:1671—2552(2014)09—1417—08LiYH,JiangT,WuFL,ZhangHY,YaoZG,WangBW.Evaluationmethodsandresultsofoilshaleresourcesinsouth-easternOrdosBasin.GeologicalBulletinofChina,2014,33(9
4、):1417—1424Abstract:OrdosBasinisrichinoilshaleresourcesandhasaseriesofoildrillingdata.However,theinvestigationandevaluationofoilshaleresourcesarestillinadequateduetolimitedusefuloilcontentdata,whichmakesitdificulttopredictoilshaleresourcesprop—erly.AccordingtosuchdrillingdatainTongchuanarea
5、asloggingandoilcontentincombinationwithAlogRmethodology.theoi1contentloginterpretationmodelhasbeenestablished,whichcanidentifyoilshalelayerandinterpretandcalculateoilcontentmuchmoreprecisely.Moreover.onthebasisofoilcontentandoilshalethicknessgivenbyplentyofoildrillingdata,thequantityofonsha
6、leresourcesofChang7ofTriassicYanchangFormationinthestudyareaof1.3x10kn~isevaluated,andtheoilshaledistributionareaisestimatedtobe1.08x10km.Besides.thequantityofoilshaleprospectiveresourcesisestimatedtobe3866x10twhilethatofthecounterpartofcarbonizationoilshaleis179x10。t,whichindicatesthegreat
7、potentialtoformsuperlargeoilshaleresources.Theresultsachievedbytheauthorsprovidesignificantevidencefortheexplorationofoilshaleinthisarea.Keywords:Ordosbasin;oilshale;oilcontent;well—loggingevaluation;resourcesquantity油頁巖屬于非常規(guī)油氣資源,資源豐富,是重爾多斯盆地積累了大量的石油鉆探資料