页岩油资源定量评价中关键参数的选取与校正——以松辽盆地北部青山口组为例.pdf

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1、矿物岩石地球化学通报·非常规油气资源·BulletinofMineralogy，PetrologyandGeochemistryVo1．34No．1，Jan．，2015页岩油资源定量评价中关键参数的选取与校正以松辽盆地北部青山口组为例薛海涛，田善思，卢双舫，张文华，杜添添，穆国栋21．中国石油大学(华东)，山东青岛266580；2．东北石油大学，黑龙江大庆163318摘要：页岩油资源评价过程中，常用热解参数(S。)反映含油性。由于实验关系，所测得的s．存在轻烃、重烃的损失，为更准确的对页岩油资源进行定量评价，本文通过有机质成烃动力学研究以及对样品抽提前后的热解参数进行对比，对s．进行轻、

2、重烃补偿校正，获得泥页岩总含油率参数，根据泥页岩排烃门限确定其可动油含量参数(S／TOC)。研究结果表明，松辽盆地北部青山口组泥页岩s，校正前后相差2—3倍，排烃门限对应的S。／TOC=75mg／gTOC，结合黏土矿物含量(表征可压裂性)，优选出页岩油勘探开发有利区：青一段有利区主要集中在齐家古龙凹陷中北部及龙虎泡大安阶地中部，青二、三段集中在龙虎泡大安阶地中部与齐家古龙凹陷中南部。关键词：页岩油；含油率；S校正；可动量参数的选取；有利区中图分类号：P618．12文章编号：1007-2802(2o15)01-0070．09doi：10．3969／j．issn．1007．2802．2015

3、．o1．008SelectionandVerificationofKeyParametersintheQuantitativeEvaluationofShaleOil：ACaseStudyattheQingshankouFormation，NorthernSongliaoBasinXUEHai．tao，TIANShan．si，LUShuang．fang，ZHANGWen．hua'2DUTian—tian'2MUGuo—dong'1．ChinaUniversityofPetroleum(EasternChina)，QingdaoShandong266580，China；2．Northeas

4、tPetroleumUniversity，DaqingHeilongjiang163318，ChinaAbstract：Pyrolysisparameter，S1，isakeyparameteronbehalfofoilcontentintheshaleoilresourceevaluationprocess．ButcontentsoflighthydrocarbonsandheavyhydrocarbonsinthemeasuredSlwereunderestimatedbecauseoftheexperi—mentalprocess．Inordertoaccurateevaluate

5、shaleoilresources，weconductedrockpyrolysisexperimentsonoriginalandextractedsamplesofchloroformbitumen“A”．thencomparedtheirresultstoacquirethecompensationfactorsofheavyhy—drocarbonsforS1andtodeterminethecompensationfactorsoflighthydrocarbonsofSl，bysuchwegainedtheoilcontentofshale，whichwecalledthec

6、alibratedS】．Moreover，wedeterminedtheflowingamountofshaleoilaccordingtothehy—drocarbonexpulsionthreshold．ResultsshowedthattheoriginalS1andthecalibratedS1aresignificantlydifferent，andthatthethresholdis75mg／gTOC．Thefavorableareaofexplorationanddevelopmentcanbeselectedaccordingtoresourcee—valuationso

7、fshaleoilandclayminerals．ThefavorableareasofqnlshouldbeconcentratedinthecentralandnorthernQi—jia—GulongsagandthemiddleoftheLonghupao—Daanterrace，whilethoseofqn2andqn3shouldbemainlyconcentratedinthecenterandsouthernofth