泌阳凹陷深凹区核三上段页岩层脆性矿物预测及分布.pdf

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1、第38卷第1期石油褒劈沾届Vol-38．No．12016年1月PETRoLEUMGEoLoGY&EXPERIMENTJan．，2016文章编号：1001-6112(2016JO1—0048-08doi：1O．11781／sysydz201601048泌阳凹陷深凹区核三上段页岩层脆性矿物预测及分布黄新，胡守志，李水福，吕倩(中国地质大学(武汉)构造与油气资源教育部重点实验室，武汉430074)摘要：利用多测井参数回归法和多矿物模型法，结合实测矿物含量数据，对泌阳凹陷深凹区核三上段页岩层矿物进行预测与分析。结果表明，

2、该页岩层矿物含量变化较大，主要以石英和黏土矿物为主(其平均含量分别为24．2％和23．4％)；斜长石、方解石、白云石、钾长石、黄铁矿含量依次降低，黄铁矿平均含量仅为3．1％；沸石、石膏等其他矿物只在少数样品中可见。通过实测数据校验，预测结果相关性好，其中多矿物模型预测精度更高，其相关性最高可达O．8。泌页HFI井矿物剖面分布以及核三上段页岩层脆性矿物平面分布显示，多矿物模型预测的结果能够较好地反映该区矿物分布规律及其变化趋势，其结果对页岩油甜点预测、储层矿物评价和页岩油开发都具有重要参考价值。关键词：脆性矿物；多

3、矿物模型；页岩层；核三上段；泌阳凹陷；南襄盆地中图分类号：TEl32．8文献标识码：AForecastanddistributionofbrittlemineralsinshalesfromtheuppersectionofthethirdmemberofHetaoyuanFormationinthedeepsagareaoftheBiyangDepressionHuangXin，HuShouzhi，LiShuifu，LtiQian(KeyLaboratoryofTectonics&PetroleumResour

4、cesoftheMinistryofEducation，ChinaUniversity0，Geoseienees，Wuhan，Hubei430074，China)Abstract：Inthispaper，webrieflydiscusstwotypesofloggingpredictionmethods，namelymulti-parameterregres—sionandmulti—mineralmode1．Wedeterminedthemineralcompositionofshalesfromtheuppe

5、rsectionofthethirdmemberofHetaoyuanFormationinthedeepsagareaoftheBiyangDepressionusingthesemethodsandcomparedthiswithmeasureddata．Theresultsshowedthatthemajorcomponentsarequartzandclayminerals，withanaverageof24．2％and23．4％，respectively．Thecontentsofplagioclase

6、，calcite，dolomite，potassiumfeldsparandpyritereduceinadescendingorder．Thecontentofpyriteisabout3．1％onaverage．Zeolite．gypsumandothermineralsarevisibleonlyinawsamples．Measureddatavalidationprovedthatthepredictionsbyloggingusingthesetwomodelsareaccurate，especiall

7、ythemulti—mineralmodel，whichhasanaccordancerateof0．8．ThemineralcompositionsectioninwellBYHF1andthebrittlemineralcontentinshalesfromtheuppersectionofthethirdmemberofHetaoyuanForma—tionshowedthatthemulti—mineralmodelcanpredictthedistributionrulesandtrendofminer

8、alsbetter．Itissignificantforshaleoilsweetspotprediction，reservoirmineralevaluationandshaleoildevelopment．Keywords：brittleminerals；multi—mineralmodel；shale；uppersectionofthethirdmemberofHe