歧口凹陷沙一段颗石灰岩的发现及其环境意义

:1000-2634(2007)05-0045-0331,1,2,3,3,3(1.,610500;2.;3.):,,X,,,,:;;-;;:P618.13;P512.2:A,3.5103/ml,,,,1,1100km2,(1),9100m5700m,()2,75%(23),,,(4)12(29,4)295Vol.29No.5200710JournalofSouthwestPetroleumUniversityOct20073:2007-05-21:(SZD0414):(1983-),(),,20032.1,(2)40%90%,0.010.20mm,0.010.05mm(3),35m;,1m,,5m,(4)X63.6%69.9%,13.5%21.55%()2.2,432,,(1)1:33.1,,,,,,,,,,,:(1)(2)(),(3)(4)(5)[1],,5564200730cm,50100[2][3],3.2[4,5]-3.2.118O/16O,18O,1,;,-5013C-12,13C-5-11,(2)WeberZ=a(13C+50)+b(18O+50)Z120,;Z120,(2),Z1202Z13CPDB/18OPDB/Z7445.89-7.54125.817O141.80-8.29126.917O342.71-6.61129.63.2.2SrBa,Sr/Ba1,Sr/Ba1Sr/Ba0.0843.182,,,3.2.3,150200,15m,[6],0.050.12mm(6),,[7,8]6(42)3.2.4,550m27.5m,(1020m),,,,,,(7)[9],,,,(56)745:(3),,:[1],,,.54O61[J].,2001,23(3):43-44.[2].[J].,2006,28(5):120-121.[3],,.[J].(),2006,30(6):59-61.[4],,.[J].,2005,29(5):96-97.[5],,.[J].,2006,19(4):88-92.[6].[J].,2004,34(5):47-52.[7]VapnikV.TheNatureofStatisticalLearningTheory[M].NewYork:Springer2Verlay,1995.[8]CortesC,VapnikV.Support2vectornetworks[J].Ma2chineLearning,1995(20):273-297.[9]vanovVV.OnlinearproblemswhicharenotwellOposed[J].SovietMathDocl,1962,3(4):981-983.[10]NelloCristianini,.[M].,,,.:,2004.()(47)7(,1987)4,,,:,,!:[1],,.-[J].,2001,47(2):207-210.[2].[J].,1989,8(1):33-40.[3],,,.[J].,2002,4(2):56-63.[4],,,.-[J].,1997,11(3):269-274.[5],,.[J].,1982,28(5):402-411.[6],.[J].,1982(1):13-29.[7],.[J].,1982,1(16):129-143.[8],.[J].,2004,43(1):147-154.[9],.[J].,1982(1):13-29.()652007bonimmigration,providethedynamicandpathwayforhydrocarbonmigration,andimprovethephysicalpropertiesofreservoirsindeepzoneandworsenthephysicalpropertiesofreservoirsinshallowzoneusually.Keywords:thermalfluid;tracemarker;Ro;migrationtype;hydrocarbonaccumulationSUMMARIZATIONOFIDENTIFICATIONOFMACROOPORESINUNCONSOLIDATEDSANDOSTONEOILRESERVOIRLIKeOxing(PetroleumEngineeringDepartment,SouthwestPetroleumUniversity,ChengduSichuan610500,Chi2na),PUWanOfen,ZHAOJun,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,NO.5,42-44,2007(ISSN1000-2634,INCHINESE)Abstract:ThemacroOporesdevelopedinthelongOtermwaterfloodingreservoirdecreasethesweepingefficiency.theindoorphysicalsimulationexperimentsontheformingmechanicsandtheaffectingfactorsofthemacroOporesareintroducedinthepaper;aimingatthedrawbacksoftheindoorphysicalsimulationexperiments;thewaysofqualitativelyandquantitativelyidentifyingthemacroOporesbymeansofwelltest,logging,andcoreanalysisandsoonaremainlyintroduced;thepresentmajorproblemsanalyzed,anditisproposedthat,basedonthetheoriesofoilreservoirengineering,togetherwiththeadvancedloggingtechnologyandinterpretationmethod,itisworkabletoqualitativelyandquantitativelyidentifythemacroOpores.someresearchconceptionsareproposed.Accuratelyiden2tifyinganddescribingthemacroOporesinunconsolidatedsandOstoneoilreservoirandcalculatingrelevantparame2tersarenotonlyhelpfultorecognizethereservoirmoreintensively,guidesandpreventionoftheoilwellsandregu2latetheworkingsystemoftheoilwells,butalsowillprovidetechnicalfoundationfortheselectionoftheblockinga2gentsandtechnologicaldesignoftheshutoffinthemiddleandlatterstageoftheoildevelopment.Keywords:unconsolidatedsandOstoneoilreservoir;macroOpores;permeability;tracer;flowthroughporousmediaTHEFINDINGOFCOCCOLITHLIMESTONEANDITSENVIRONMENTSIGNIFICANCEINQIKOUDEPRESSIONINSHAHEJIEMEMBERMUXiaoOhui(ResourcesandEnvironmentInstitute,SouthwestPetroleumUnivesity,ChengduSichuan610050,Chi2na),DONGZhaoOxiong,ZHANGJian,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,NO.5,45-47,2007(ISSN1000-2634,INCHINESE)Abstract:InShahejieMemberinQikouDepression,themassivealcareouslaminatedmudstoneorBitumi2nousrockarediscovered.However,bymeansoftheopticalmicroscope,thescanningelectronmicroscopeobser2vationaswellastheentirecockXOraydiffractionanalysis,itisidentifiedmostpartofthesealcareouslaminatedmudstone,Bituminousrockarecomposedbymudstoneandcoccolithlimestone.Thelimestonegeochemistrya2nalysis,themineralogyfindingsindicatedthattheformingofcoccolithlimestonewererelatedwithseawater,fur2thercomparedwithcoccolithgrowthenvironmentandthecharacteristicofitsdepositinmodernBlackSea,itisdis2coveredthecoccolithlimestoneofShahejieMemberinQikoudepressionandevenBohaibasinissimilartothecoccolithlimestoneintheBlackSea.ThisindicatethatatthecommunicationperiodbetweenBohaiBayandsea,coccolithlimestoneinQikouDepressionistheresultofbloomsanddepositionofcoccolithwhenitenteredtheBohaiBasinfromtheopensea.Keywords:coccolithlimestone;ShahejieMember;connectiontheseaandlake;QikouDepression;PaleogeneCHARACTERISTICOFFLOWTHROUGHPOROUSMEDIAINLOWPERMEABILITYRESERVOIRWITHEOLOTROPYSHIChengOen(InstituteofGeologyandGeophysicsChineseAcademyofSciences,Beijing100029,China),HAO5JournalofSouthwestPetroleumUniversityNo5