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1、復(fù)雜油氣藏第7卷第1期ComplexHydrocarbonReservoirs2014年3H冀中坳陷束鹿凹陷致密油成藏特征探討宋濤，李建忠，姜曉宇，呂維寧，李欣，鐘雪梅(1．中國石油勘探開發(fā)研究院，北京100083；2．葉1國石油華北油F日分公州勘探開發(fā)研究院，河北任丘062552)摘要：致密油資源是目前和未來一段時間我國非常規(guī)油氣勘探和開發(fā)的主體，具有連續(xù)性成藏的特點。利用地震、鉆井地質(zhì)和測試資料，結(jié)合勘探實踐，對渤海灣盆地冀中坳陷束鹿凹陷泥灰?guī)r致密油成藏特征進行了研究。結(jié)果表明，柬鹿凹陷致密油藏的形成主要受優(yōu)質(zhì)烴源巖、致密儲層的控制；具有源儲一體、近源成藏特征，具備形成致密油
2、的良好條件；平面上，凹陷洼槽中心區(qū)與斜坡帶低部位是泥灰?guī)r致密油主要分布區(qū)，縱向上集中于沙三下亞段厚層泥灰?guī)r段，具有縱向上整體含油、平面上局部富集分布特征。研究區(qū)存在圍繞中洼和南洼的兩個泥灰?guī)r致密油規(guī)模分布區(qū)，目前多口井已鉆獲工業(yè)油氣流，資源潛力大，為下步有利勘探區(qū)。關(guān)鍵詞：致密油泥灰?guī)r成藏特征束鹿凹陷冀中坳陷中圖分類號：TEl22．3文獻標(biāo)識碼：AAccumulationfeaturesoffightoilreservoirinShulusagofCentralHebeiSongTao，LiJianzhong，JiangXiaoyu，LtiWeining，LiXin，ZhongX
3、uemei，(1．PetroChinaResearchInstitnteofPetroleumPloration＆Developra~ttt，Beijiag100083；2．ResearchInstituteofPetroleum腳loration&Development，HuabeiOilfieldCompany，PetroChina，Renqiu，Hebei062552)Abstract：Tightoilresources，withthecontinuousaccumulationcharacteristics，arebecomingthemainpartoftheuncoi
4、l—ventionaloilandgasexplorationanddevelopmentinChina．Combinedwiththeexplorationpractice，theaccumulationlea—turesofthemarlstonetightoilreservoirsinShnlusagwereanalyzedandevaluatedbyusingcore，seismicdata，geologicaldrillingandgeochemicaldata，etc．Theenrichmentofthetightoiliscontrolledbythedistrib
5、utionofeffectivesourcerocksandtightmarlsreservoirs．Highqualitysourcerocksinthematurestagebelongtotightreservoirswhichprovidegoodcondi—tionsfortightoilaccumulation．Thetightoilreservoirsaremainlydistributedinthecentreandsloperegionofthesag，andthethicklayerofmarlsegmentinthemember3ofShahejieform
6、ationislongitudinalsweetpoint．Thetightoiloccurredintheentirestrataverticallyandspreadspecialareashorizontally．TheresearchedregioninShulusaghastwomaintightoildistri—butionareaswhicharemediumandsoutherndepressions．Atpresent，manywells，whichgotindustryproductionrate，havebeendrilledsuccessfully．So
7、theShulusagwithalargepotentialfortightoilisthenextfavorableexplorationarea．Keywords：tight0i1；marls；reservoirfeatures；Shulusag；centralHebeidepression致密油是指以吸附或游離狀態(tài)賦存于生油巖進展，將束鹿凹陷致密油與國內(nèi)外已發(fā)現(xiàn)致密油對中，或與生油巖互層、緊鄰的致密砂巖、致密碳酸巖比，發(fā)現(xiàn)束鹿凹陷致密油地質(zhì)特征鮮明，油氣分布具鹽等儲集巖中，
