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《蘇里格氣田低滲透儲層微觀孔隙結(jié)構(gòu)特征及其分類評價方法.pdf》由會員上傳分享，免費在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫。
1、第19卷第2期地學(xué)前緣(中國地質(zhì)大學(xué)(北京)；北京大學(xué))Vo1．19NO．22012年3月EarthScienceFrontiers(ChinaUniversityofGeosciences(Beijing)；PekingUniversity)Mar．2012蘇里格氣田低滲透儲層微觀孔隙結(jié)構(gòu)特征及其分類評價方法李海燕，岳大力，張秀娟1．中國石油大學(xué)(Jg京)地球科學(xué)學(xué)院，北京1022492．大慶鉆井工程公司，黑龍江大慶163412LiHaiyan，rueDali，ZhangXiujuane1．FacultyofGeosciences，ChinaUniversi
2、tyofPetroleum(Beijing)，Beijing102249，China2．DaqingDrillingEngineeringCompany，Daqing163412，ChinaLiHaiyan，YueDali，ZhangXi~uan．CharacteristicsofporestructureandreservoirevaluationoflowpermeabilityreservoirinSuligegasfield．EarthScienceFrontiers，2012，19(2)：133‘140Abstract：TakingtheShanla
3、ndHe8segmentsinSuligegasfieldas3nexample，thisstudyfocusedonthemi—croporestructuresoflowpermeabilityreservoir．Basedonthestudyofmercuryinjectiontest，scanningelec—tronmicroscope，andcastingsliceofcorewells，microporestructurewasclassifiedintofourtypesthrougha—nalysisofreservoirporetypesa
4、ndstructures．Characteristicsofeachmicroporestructurewasanalyzedinde—tail．Dualinfluenceofsedimentaryenvironmentanddiagenesisresultedinthecomplexityofthemicroporestructures．ItisindicatedthatthegeneticmechanismofthelowpermeabilityinSuligegasfieldisthestrongcompaction，fillingandcementat
5、ionofautogeneticmineralsduringdiagenesis．Reservoirspacewasdominatedbysecondarypores，andtheporethroatassemblagewasmainlylowpore-smallthroat．WiththeclusterandBayesdiscriminantanalyses，combinedwithsevenmacroandmicroheterogeneityparameters，discriminantfunctionoffourporestructuretypeswas
6、established，porestructuretypesforSuligegasfieldwererecognized，andtheuniversalevaluationmapsofmainminilayersweredrawn．FurtheranalysisindicatesthattypeIandtypeIIreservoirsareofhigh-quality，andconsideredasthefurthertargetsforexplorationanddeveiopmentof1OWpermeabilityShanlandHe8segments
7、．Keywords：lowpermeability；porestructure；discriminantanalysis；reservoirevaluation摘要：以蘇里格氣田盒8段和山1段為例，開展了低滲透儲集層微觀孔隙結(jié)構(gòu)特征的研究工作。以取心井壓汞測試、掃描電鏡、鑄體薄片等分析化驗資料為基礎(chǔ)，通過分析儲層的孔隙結(jié)構(gòu)和孔隙類型，將儲層微觀孔隙結(jié)構(gòu)分為4類，分析了各類微觀孔隙結(jié)構(gòu)的特征。沉積環(huán)境和成巖作用的雙重影響使得盒8段和山1段的儲層孔隙結(jié)構(gòu)非常復(fù)雜，造成本區(qū)儲層特低滲透率的主要成因機制為成巖期強烈的壓實作用及各種自生礦物的充填和膠結(jié)作用。主要的儲集空
8、間為次生孔隙，孔喉組合主要為低孔小喉型
