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1、2014年1O月大慶石油地質(zhì)與開發(fā)0ct..2014第33卷第5期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.33No.5DOI:10.3969/J.ISSN.1000—3754.2014.05.021海拉爾盆地外圍凹陷與烏爾遜一貝爾凹陷油氣地質(zhì)特征類比李子順彭威申文靜王江張海橋李敬生(大慶油田有限責(zé)任公司勘探開發(fā)研究院,黑龍江大慶163712)摘要:為了深入研究海拉爾盆地外圍凹陷的油氣地質(zhì)條件,加快勘探進(jìn)程,立足烏爾遜一貝爾凹陷與外圍凹陷已有的油
2、氣勘探資料和認(rèn)識(shí),從石油地質(zhì)特征人手剖析了二者的相似性與差異性。相似性為都經(jīng)歷了3期構(gòu)造演化,凹陷內(nèi)具有“分塊、分帶、分層”的特點(diǎn),南屯組及以下地層是主要烴源層,儲(chǔ)集相帶類型、有機(jī)質(zhì)豐度、油氣聚集受斷裂帶控制明顯;差異性主要表現(xiàn)在凹陷結(jié)構(gòu)、構(gòu)造演化、構(gòu)造帶類型、油氣性質(zhì)、烴源巖及其熱演化、沉積儲(chǔ)層、成藏組合和成藏模式等8個(gè)方面。石油地質(zhì)類比表明,外圍凹陷的油氣勘探需要利用烏爾遜一貝爾凹陷的勘探成果與經(jīng)驗(yàn),結(jié)合自身石油地質(zhì)特征,構(gòu)建新的勘探思路。關(guān)鍵詞:烏爾遜一貝爾凹陷;構(gòu)造;烴源巖;成藏模式中圖分類號(hào):
3、TE122.1文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1000-3754(2014)05.0131一cr7ANoLoGYoFTHEoILANDGASGEoLoGICALFEATURESBETWEENTHEPERIPHERALSAGSANDWUERXUN.BEIERSAGINHAILERBASINLIZishun,PENGWei,SHENWenjing,WANGJiang,ZHANGHaiqiao,LIJingsheng(ExplorationandDevelopmentResearchInstituteofDaqing
4、OilfieldCompanyLtd.,Daqing163712,China)Abstract:InordertodeeplyresearchthepetroleumgeologicalconditionsandacceleratetheexplorationprocessfortheperipheralsagsinHailerBasin,onthebasesoftheavailableexplorationdataandunderstandingsofWuerxun-BeierSagandperiph
5、eralsags,theverysimilaritiesanddifferencesbetweenthemareanalyzedfromtheviewpointsofthepetroleumgeologicalcharacteristics.Bothofthemsharethefollowingcommonpoints:haveexperiencedthreestagesofthetectonicevolution;characterizedbysegmentation,zonationandstrat
6、ification;NantunFormationandtheformationsbelowitarethemainhydrocarbonsourcerocks;typesofthereservoirsedimentaryfacies,organicmatterabundanceandhydrocarbonenrichmentareobviouslycontrolledbythefaultbelts.Differencesaregenerallyshowninthefollowingeightaspec
7、ts,suchasthesagstructures,tectonicevolutions,tectonicbelttypes,oilandgasproperties,hydrocarbonsourcerocksandtheirthermalevolutions,sedimentaryreservoirs,reservoir—formingcombi—nationsandhydrocarbonaccumulatedpatterns.Thepetroleumgeologyanalogyindicatesth
8、attheoilandgasexplo—rationintheperipheralsagneedstakingadvantagesoftheexplorationachievementsandexperienceinWuerxun一收稿日期:2014.06..15基金項(xiàng)目:國(guó)家重大科技專項(xiàng)“大型油氣田及煤層氣開發(fā)”(2011ZX05001—001一OO4)和中國(guó)石油天然氣股份公司重大科技專項(xiàng)“大慶油田原油4000萬噸持續(xù)穩(wěn)產(chǎn)關(guān)鍵技術(shù)研究”(