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1、2010年10月大慶石油地質(zhì)與開(kāi)發(fā)Oct.,2010第29卷第5期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.29Nn5DOI:10.3969/J.ISSN.1000.3754.2010.05.004走滑斷層轉(zhuǎn)換帶砂體發(fā)育特征與油氣富集規(guī)律鄧津輝徐長(zhǎng)貴周心懷姚長(zhǎng)華黃曉波(1.中國(guó)地質(zhì)大學(xué),北京100083;2.中海石油有限公司天津分公司,天津3004523.中海石油能源發(fā)展集團(tuán)采油工程研究院,天津300452)摘要:金縣地區(qū)勘探實(shí)踐表明,儲(chǔ)層發(fā)育程度是油氣富集的主控因素。為此,應(yīng)用斷層轉(zhuǎn)換帶
2、的理論并結(jié)合金縣地區(qū)郯廬斷裂的活動(dòng)特征,在該地區(qū)識(shí)別出2種類型的走滑斷層轉(zhuǎn)換帶:一種為同向型橫向轉(zhuǎn)換帶,主要處于金縣地區(qū)的東側(cè),控制金縣地區(qū)東盤的砂巖儲(chǔ)層分布;另一種為同向疊覆型走向轉(zhuǎn)換帶,主要處于金縣地區(qū)的西側(cè),控制西盤的砂巖儲(chǔ)層分布。另外,在郯廬斷裂帶右行走滑作用下,東營(yíng)組砂體表現(xiàn)為由北向南從深到淺橫向遷移疊置的特征,最終在該地區(qū)建立了“魚躍式”砂體發(fā)育模式,找到油氣富集部位,并確定金縣地區(qū)“南富北貧”的油氣富集規(guī)律。關(guān)鍵詞:金縣地區(qū);郯廬斷裂;走滑斷層轉(zhuǎn)換帶;砂體發(fā)育模式;油氣富集規(guī)律中圖分類號(hào):TEl22.24文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):10
3、00—3754(2010)05-0018-06SANDSToNEDEVELoPMENTCHARACTERISTICSANDHYDRoCARBoNENRICHMENTRULESINTHESTRIKE.SLIPFAULTTRANSFERZoNEDENGJin—hui·,XUChang—gui。,ZHOUXin—huai,YAOChang—hua,HUANGXiao.bo(1.ChinaUniversityofGeosciences,Beo'ing100083,China;2.TianfinBranchofCNOOCLimited,Tianjin300
4、452,China;3.CNOOCEnergyTechnology&Services—OilfieldEngineeringResearchInstitute,Tianjin300452,China)Abstract:Explorationpracticeshowsthatreservoirdevelopmentdegreeisthemaincontrollingfactorofhydrocar-bonenrichmentinJinxianarea.Therefore,withtheutilizationoffaulttransferzoneth
5、eorycombinedwiththeactivecharacteristicsofTan—LufauItinJinxianarea。twotypesofstrike—slipfauhtransferzonesareidentified:Oneisconcordantlateraltransferzone,whichmainlyliesintheeastofJinxianareaandcontrolsthedistributionofsand-stonereservoirsineasternfaultwallofJinxianarea;Theot
6、heriscocurrentoverlappingstriketransferzone,whichmainlyliesinthewestofJinxianareaandcontrolsthedistributionofsandstonereservoirsinwesternfaultwallofJinxianarea.Besides,subjectedtodextralstrike—slipmovementofTan—Lufracturebelt,sandbodiesinDongyingformationshowthecharacteristic
7、soflateralmigratingandoverlayingfromnorthtosouthandfromdepthtoshallow.Finally,the“fish-jumping”sandstonedistributingpatterninJinxianareaisformed,whichhelptofindouttheoil收稿日期:2009-04—17基金項(xiàng)目:國(guó)家科技重大專項(xiàng)(2008ZX05023)資助。作者簡(jiǎn)介:鄧津輝,男,1976年生,在讀博士,高級(jí)工程師,從事石油地質(zhì)研究及勘探工作。E—mail:dengjh@CnOOC.
8、com.CD第29卷第5期鄧津輝等:走滑斷層轉(zhuǎn)換帶砂體發(fā)育特征與油氣富集規(guī)律·l9·andgasenrichmentpositionan