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1、2015年6月,第21卷,第2期,300—305頁高校地質(zhì)學(xué)報June2015,Vo1.21,No.2,PP.300-305GeologicalJournalofChinaUniversitiesDOI:10.161080.issn1006-7493.2014151渤南洼陷沙四上亞段膏鹽層成因探討孟昱璋,劉鵬,王玲一,孫廷彬'1.成都理工大學(xué)“油氣藏地質(zhì)及開發(fā)工程”國家重點實驗室,成都610059;2.中石化勝利油田分公司地質(zhì)科學(xué)研究院,東營257015;3.中石化中原油田博士后工作站,濮陽457000;4.中石化中原油田分公司勘探開發(fā)
2、研究院,濮陽457000摘要:為明確渤南洼陷沙四上亞段膏鹽層成因,綜合利用錄井、分析化驗等資料對膏鹽層發(fā)育特征、成因類型等進(jìn)行了分析。結(jié)果表明:渤南洼陷沙四上亞段膏鹽層主要以石膏質(zhì)泥巖和含膏泥巖為主,其次為石膏巖和泥膏巖,石膏巖在縱向上主要分布在2800—3600m深度段,在橫向上呈兩條粗帶狀東西向展布;膏鹽層沉積期氣候濕潤,水深較大,膏鹽層為深水成因,火成巖與膏鹽層分布具有良好的耦合關(guān)系,推測火成巖噴發(fā)和侵人為膏鹽層形成提供了來源物質(zhì)。關(guān)鍵詞:鹽層;成因類型;火成巖;沙四上亞段;渤南洼陷中圖分類號:P618.130.2文獻(xiàn)標(biāo)識碼:A文
3、章編號:1006—7493(2015)02—0300—06TheGenesisofGypsumZoneintheUpperPartoftheFourthMemberofShahejieFormationinBonanSagMENGYuzhang’,LIUPeng,WANGLing。,SUNTingbin。'1.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,Chengdu610059,China;2.Ge
4、ologicalScienceResearchInstitute,SinopecShengliOilfieldCompany,Dongying257015,China;3.PostdoctoralWorkStationofZhongyuanOilCompany,SINOPEC,Puyang45700,China;4.ResearchInstituteofPetroleumExplorationandDevelopment,ZhongyuanOilfieldCompany,SINOPEC,Puyang457000,China;Abstra
5、ct:InordertounderstandthegenesisofgypsumzoneintheupperUpperpartofthefourthmemberofShahejieFormationinBonansag,comprehensiveanalysesofdrillingdata,testingdata,thedevelopmentalfeatures,andgenetictypesofgypsiumzonewereperformed.Theresultsshowthatthegypsumzoneismainlycompose
6、dofgypsummudstonesandgypsumrocks,andthegypsumrocksmainlyoccurinthedepthrangebetween2800mand3600m,andastwoEW—trendingwidebelts.Theclimatewashumidandlakewasdeepduringthedepositionalperiodofgypsumzone.Thedistributionofigneousrocksandthegypsumzoneappearstobecoupledandwespecu
7、latethatsaltssubstancescamefromdeepthermalbrine.Thegypsiumzonebelongstothetypethatsaltwasdepositedinadeepwaterenvironment.Theresultsmayhelpunderstandgenesisofgypsiumzonesinotherregions.Keywords:gypsumzone;genetictypes;igneousrocks;upperEs4;BonansagCorrespondingauthor:LIU
8、Peng,Ph.D.E—mail:1018pengliu@163.com收稿日期:2014—09—03;修回日期:2014—11-04基金項目:國家科技重大專項“渤海灣盆地精細(xì)勘探關(guān)鍵技術(shù)”(2011ZX0