45382.鄂爾多斯盆地延長組長6儲層特征及其控制因素研究

1、碩士學位論文Y89370罩鄂爾多斯盆地延長組長6儲層特征及其控制因素研究學科專業(yè)：壁塹鱟!羞丕堂!壁鏖堂研究方向：籃星婆塑堂年級：研究生：導(dǎo)師：2003級掛壘良芝整蘭墼撞量皇魚盤堂墊匱堂壅二零零六年五月AbstractOnthebasisofformers’studY，thePapersuggeststhatthesandstonereservoirofYanchangformationwasdepositedonthebackgrou

2、ndofregionallacustrineenvironmentaccordingtosedimentaryframework，structure，sedimentaryrhythmandloggingresponsecharacteristicsThemeanderingriverdeltasystemwasestablishedinthenortheastOrdosbasinandthefavorablefaciesbeltsfo

3、rdevelopingreservoirofChang6memberweresubmergeddistributarycharmelsofdeltafront，mouthbaranddistalbarThebraidedriverdeltasystemwasestablishedinthesouthwestOrdosbasinandthefavorablefaciesbeltsfordevelopingreservoirwasturbi

4、diteformedindeeptosemi—deeplakeAbundantcoredescriptionandobservingandexperimentalanalysisindicatethatthereservoirsandbodiesmainlyiSfeldsparsandstoneandthemaintypeofporeisresidualintergranularporositythesecondisfeldspardi

5、ssolutionporosityandlaumontitedissolutionporosityItbelongstolowpomsitywithextremelylowpermeabilityandextremelylowporositywithextremelypermeabilityreservoirTheporetextureofChang6memberissmallsizedporositywithminutethroats

6、Themaindiagenesisinthestudiedareaincludedthemechanicalcompaction。cementation，infilling，dissolution，andanthigenicmineralprecipitationAccordingtotheanalysisof＆ofmudstone，thecontactsofelasticgrains，poretypes，thedevelopmenta

7、ndthetypeofauthigenicminerals，thediagenesisofthereservoirsandstoneofChang一6isduringtheperiodoflatediagenesisAwimfonrsequencesofdiagenesisdevelopment，andtwodiageneticenvironmentsBymearlSofmicroscopeobserving，EMSanalysinga

8、ndtheresearchofsedimentaryanddiagenesis，itbringsforwardthatthesedimentationiSthemaininfluencingfactorofreservoirTheprecipitationanddissolutionofclayfilmarethekeyfactorstocontrolthepreservationoforiginalporesandthedevelop

9、mentofsecondaryporesinsandstonereservoirTherearefourtypesofreservoirformationinthisareamidthetypesofIandIIarethefavorableonesandⅢiscomparativelyfavorablebythecomprehensiveresearchandevaluationSevenfavorablereservoirzones

10、aresuggestedtobetargetsforthefutureexplorationofMesozoicperiodinresearchfulareaaccordingtotheevaluationofsandbodycharacteristiestherangofrockswimhydrocarbon，diagenesisaswellascombiningwiththeconditionsofoilnessintheresea