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1、AdvancesinGeosciences地球科学前沿,2014,4,22-28http://dx.doi.org/10.12677/ag.2014.41004PublishedOnlineFebruary2014(http://www.hanspub.org/journal/ag.html)CharacteristicsandSeepageAdditiveEffectofVolcanicRockPore-FractureTypeReservoir—ACaseStudyofPai66AreaintheWestEdgeo
2、fJunggarBasinXuezhongWangShengliOilfieldCompany,Sinopec,DongyingEmail:wxzxlywlt@sina.comthndthReceived:Jan.4,2014;revised:Feb.2,2014;accepted:Feb.10,2014Copyright©2014XuezhongWang.ThisisanopenaccessarticledistributedundertheCreativeCommonsAttributionLicense,whic
3、hpermitsunre-stricteduse,distribution,andreproductioninanymedium,providedtheoriginalworkisproperlycited.InaccordanceoftheCreativeCommonsAt-tributionLicenseallCopyrights©2014arereservedforHansandtheowneroftheintellectualpropertyXuezhongWang.AllCopyright©2014aregu
4、ardedbylawandbyHansasaguardian.Abstract:ChunfengOilfieldwaslocatedintheWestEdgeofJunggarBasin,with17exploratorywellsdrilledinpore-fracturetypereservoirsofVolcanicRock,amongwhich4exploratorywellsobtainedindustrialoilflow.Toexpandexplo-rationresults,highyieldmecha
5、nismresearchisdeveloped.Researchshowsthat,theadvantagesforhighyieldconditionsofVolcanicRockinChunfengOilfieldare:volcanictuffreservoir,coreoilgradewithoilspot,reservoirfracturesandlowerundergroundoilviscosity.Inthisprocess,pore-fractureseepageadditiveeffecthasbe
6、endiscovered.Pore-fractureproducedbetterdevelopmenteffectthanbothsimpleporeandfracture.Pore-fractureadditivepermeabilityismanytimestheloginterpretationpermeability,anditprovidestheoreticalbasisforhorizontalwellandlongchannelfracturing.Keywords:Pore-FractureType;
7、ReservoirCharacteristics;VolcanicRock;SeepageAdditiveEffect;HighYieldMechanism;TheWestEdgeofJunggarBasin火山岩孔隙–裂缝型储层特征与渗流叠加效应—以准噶尔盆地西缘排66地区为例王学忠中国石化股份有限公司胜利油田分公司，东营Email:wxzxlywlt@sina.com收稿日期：2014年1月4日；修回日期：2014年2月2日；录用日期：2014年2月10日摘要：春风油田位于准噶尔盆地西缘，17口探井钻遇孔隙–裂缝型
8、火山岩油藏，其中4口探井获得了工业油流，为扩大勘探成果，开展了高产机理研究。研究发现，春风油田石炭系火山岩高产有利条件为：储层为火山凝灰岩，岩心含油级别为油斑级，储层裂缝发育，地下原油黏度较低。在分析高产原因的过程中，发现了孔隙–裂缝渗流叠加效应。即孔隙–裂缝沟通后，产生了由于优于单纯孔隙型储层或单纯裂缝型储层的开发效果。孔隙–裂
