白音查干凹陷桑合油田下白垩统都红木组沉积相特征

白音查干凹陷桑合油田下白垩统都红木组沉积相特征王先德1,刘和甫1,韩振哲1,赵同庆2,栗风清3(1.(),100083;2.,163000;3.,457001):根据录井、岩芯、电测、地震等资料,应用沉积学、地震、测井等沉积相划分标志,研究了白音查干凹陷桑合油田下白垩统都红木组沉积相类型和沉积特征,以及都红木组沉积相分布规律。结果表明,都红木组发育湖泊以及冲积扇相两种沉积相。从盆地边缘到盆地中心,沉积相由扇三角洲沉积渐变为半深湖—深湖相沉积。扇三角洲前缘亚相带仍然是油气聚集的重要相带,而与断层相关的前缘近岸浊积扇是岩性油气藏勘探的有利目标。:白音查干凹陷;桑合油田;沉积相;三角洲;浊积扇,[1-2],,NE-WE,[1-2],(1)-,,1[1-6],,,,,1,[3-4]1.1　都三段,,0220m,1.2　都二段,,60370m,1.3　都一段-,,103200923内蒙古石油化工:2009-07-14:王先德(1972-),男,博士研究生,中国地质大学(北京)能源学院。,,,,,,,,;85830m22.1　扇三角洲Hotmes(1965),Mcgomen(1970):,,,,,,,(),,,,,,,,,,,,,,,,,,2.1.1,,,[5]2.1.1.1,,,,29m,55%75%,(2)2,:,,,;14,,,,2.1.1.23,,104内蒙古石油化工　　　　　　　　　　20092313m,9-4880m,,(3)2.1.1.3,-,,2.1.1.4,,,,(4),,12m,15%30%42.1.2,-,2.2　湖泊相,-,,,,,,2.2.1,,50100m,90%(5)52.2.2[6](),,,,6,(6);,,105200923王先德等　白音查干凹陷桑合油田下白垩统都红木组沉积相特征,,,,,73,,,,,,,,,,,,,,,,,[][1]　刘和甫,李晓清,刘立群,等.伸展构造与裂谷盆地成藏区带[J].石油与天然气地质,2005,26(5):537～552.[2]　李晓清,丘东洲,刘和甫,等.蒙古弧形褶皱带上叠沉积盆地油气远景[J].地学前缘,2006,13(6):72～81.[3]　张福顺,王生朗,孙宜朴,等.白音查干凹陷层序地层研究[J].石油勘探与开发,2003,30(4):32～34.[4]　许书堂,马维民,王德仁,等.二连盆地白音查干凹陷下白垩统层序地层研究[J].沉积学报,2004,22(4):644～650.[5]　张福顺.白音查干凹陷扇三角洲与辫状河三角洲沉积[J].地球学报,2005,26(6):553～556.[6]　鄢继华,陈世悦,宋国奇,等.三角洲前缘滑塌浊积岩形成过程初探[J].沉积学报,2004,22(4):573～578.CharacteristicofSedimentaryFaciesintheLowerCretaceousDuhongmuFormationofDaerqiOilfieldWANGXian-de1,LIUHe-fu1,HANZhen-zhe1,ZHAOTong-qing2,SUFeng-qing3(1.ChinaUniversityofGeosciences(Beijing),Beijing1000832.Daqingoilfieldcompany,Ltd,CNPC,Daqing1630003.ZhongyuanOilfieldCompany,SINOPEC,PuyangHenan457001)Abstract:Basedonmudlogging,cores'description,electriclogandseismicsurvey,etc.Thesedimentaryfacies'typesandtheircharacteristicsofLowerCretaceousTenggeerFormation,Baiyinchagan(BYCG)DepressionSangheoilfield,werestudied,aswellastheirdistributionrule.TheresearchshowedthatlacustrineenvironmentandalluvialenvironmentwerepresentintheDuhongmuformation.Inaddition,fromthemargintothedepocenterofthedepression,thesedimentaryenvironmentsgraduallychangedfromfandeltatomiddledepthlacusanddeeplacus.Thefrontsoffandeltaisstilltheimportanthydrocarbonaccumulationarea,andthefault-relatedturbiditiesinthemarethepotentialtargetsofexploringthelithologicalhydrocarbonreservoirs.Keywords:BaiyinchaganDepression;Sangheoilfield;SedimentaryFace;Delta;TurbidityFan106内蒙古石油化工　　　　　　　　　　200923