20158 Vol.35No.4 35 4 MARINEGEOLOGY & QUATERNARY GEOLOGY Aug.2015 DOI:10.16562/j.cnki.0256-1492.2015.04.008 1 23 23 23 23 23 (1. 421001; 2. 510640; 3. 100049) : - 2 ( ) : ; ; ; :P744.4 :A :0256-1492(2015)04-0073-14-57.15t 3.57 m 3 21.5t [3] [1-2] 20 80 ; 13-113-4 13-6 19-2 13-1 13-3 13-3S 24-1 29-2 9 1000 10 8 m 3 ; 1 ( ) LS22-1 15 37 ~19 00 N 109 10 ~113 38 E : (41176052); (2009CB219501) : (1983 ) E-mail:120583745@qq.com : (1987 ) E-mail:zhangwei@gig.ac.cn :2014-09-02; :2014-10-10. - - [4-6]
74 2015 2 (1) 1 ; 5 ; 12 30 50 ; 11-82993km 2 16 0~200 :YC( )13-1 YC13-4 YC13-6 m; YC7-4 YC14-1 YC19-1 YC21-1 BD( ) 2000 19V2 BD13-1 BD13-3 BD13-3S BD15-3 ST( m - )24-1 ST29-2 ST32-2 Yin9 YC35- - 1 LS( )22-1 ( ) ( ) (2 ) ( ) 5 (1) (1) 20 80 9000km 2 3 ( 13-1 13-4 [7] ( ) 22-1 ) ( ) LS22-1 [8-9] [10] Fig.1 1 MajortectonicunitsandtheirdistributionpaternoftheQiongdongnanBasin
4 : 75 1 ( 2013) Table1 DiscoveredgasreservoirsanddistributionoftheTertiaryinQiongdongnanBasin(AfterHejiaxionget.al2013) 3 2 ( ) (2) 2 Table2 ReservoircharacteristicsandmaincontrolingfactorsoffavorableoilandgasaccumulationinQiongdongnanBasin / + - YC13-1-1 3399 108 m 3 + / + / / - BD13-3S-1 2590 10 8 m 3 CO2 2 / + / - ST4-2-1 1700 10 8 m 3 - / - + : 2011 2012 LS22-1-1 16000 10 8 m 3
76 2015 3.1 13-1 [1314] 21-1 (1) YC13-1-1 20 14 YC13-1 YC13-4 YC13-6 ; 69%YC19-1-1 52% [3] 3399 10 8 m 3 3.1.1 - - I YC13-1-A8 I2 0.43%~3.2%BD15-3-1 ST24-1-1 1.0% ; 3.1.3 YC13-1-1 2 3 4 6YC19-1-1 YC19-2-1 YC8-2-1 (TOC:43.5%~95.9%) [211-12] YC13-4 YC21-1YC13-1 [13] [1] YC13-6 83.22% ~ 89.81% 0.91~0.99 δ 13 C -39.9 ~-33.6 3.1.2-13-1 - (2) 21-1 - - - - YC13-1 S70 - - 70% ( ) S70 YC13-4 (2) 20km 2 T62( ) 3500 ms( ) 3 [2] - - 81% ;YC9-2-1 ;
4 : 77 [314] 3.1.4 (1) 10 : 2590 10 8 m 3 284 10 3 m 3 (1) + 55 10 8 m 3 13-1 + YC13-1 (2) 3.2.1 + - [15] YC14-1-1 Yin9 ST24-1 BD19-2-1 BD15-3-1 YC13-1 + 4- [16] (2) YC13-4 Ro 0.6%~ (2) 2.1% ; Ro [1-3] 2.0% [17] + 3 13 / / - - BD13 3.2 0.88~0.92 BD19-2 0.94 Fig.2 2 ( 2005) HydrocarbonmigrationandaccumulationmodelofHuanyananSaginQiongdongnanBasin (modifiedaftercnooc2005)
78 2015 [15] BD13 BD13 (2) ( ) 5 BD19-2 BD19-2 YC13-1 BD13 ST24-1 BD19- ( ) 2 BD20-1 3.2.2 () 3.2.4 100~400 m 20~180 m T60T50 + 3700 m 10~30 2 km 2[1] 2 (2); BD19-2 - - 0.1~5 - / [23] md BD13-3S-1 12%~16% ; 9.9%~14% ;BD13-1-1-3.3 18.9% ~23.17% - - 2 NE F2 F2-1 300km 2 ( ) ( ) ( ) - BD15-3-1 ST24-1- 2 [19-20] ( 1 BD6-1-1 BD23-1-1 1) 2 1700 3.2.3 10 8 m 3 3.3.1 [18] - - ;
4 : 79 2 [24-26] 2 500~800 m [2] ; 2 2000 m ;2-1 21-1 TOC 1.0% ~1.2% ; 2 35-1 21-1 2-1 13-1 3.3.4 - (1)2 : - - 2 + (3) :1 ; - ;2 [1-221] 2 () ( ) 3.3.2 ;3 2 4 + LS4-1 LS4-5 ST35-1 F2-1 ST36-1 19- (2)2 :2 ( 1 9-2 9-1 - ) (4) 2 2 [22-23] 2 2 (2) - 3.4 ( ) 2 3 :(1) ;(2) ( ) ( ) ;(3) LS22-1 LS33-1 YL2-1-1 YL19-1-1CC26-1-1 3.3.3 (1) 5 ( ) 2 LS22-1
80 2015 Fig.3 3 (2 ) ( 2009) HydrocarbonmigrationandaccumulationmodelofnorthslopeofBaodaosag (eastofthe2ndfracture) inqiongdongnanbasin (modifiedaftercnooc2009) Fig.4 4 2 ( - ) ( 2010) Hydrocarbonmigrationandaccumulationmodelofthewestofthe2ndFracture(Ledong-LingshuiDepression) inqiongdongnanbasin(modifiedaftercnooc2010) ( ) 16000 10 8 m 3 3.4.1 LS22-1 73 m 58.4 m 74.3% - YL19-1-1 - ; - TOC [24-25] - 20% 1%
4 : 81 [25] LS33-1 299.7 m - I TOC 0.33%~1.17% 0.79% [26] - 3.4.2 ( ) - + (2) [27] [24-25] 3.4.4 [28-29] - - (1) : [30] 3:1 (5A):1 ;2 - ;2 ;3 ;3 3 :1 ;2 ; ;3 ;4 3.4.3 (2) - (2) : / ( + ) ;
82 2015 5 Fig.5 ( ) ( 2010) HydrocarbonmigrationandaccumulationmodelofSouthernupliftbumps(lowuplift) inqiongdongnanbasin (modifiedaftercnooc2010) ( BD19-1-1 BD19-2-2 BD15-3-1 BD20-1- 5B) 4 YC13-1 YC13-4LS22-1 CO 2 4.1.3 2 2 (2) 4.1.1 SY13-1 YC13-1 YC13-4 YC13-6 ST36-1-1 YC19-1 ( ) ;YC26-1 ( <10%) YC14-2 YC15-3 2 - ( 85% 64%) : 3 4.1.4 ( ) [2-3] 4.1.2 1 ;BD15-3 BD19-2 CO 2 ST4-2-1 ST36-1-1 LS4-2-1 ( ) LS22-1 LS22-1-1 60 m LS33-1-1 ST24-1-1 (TOC:0.6% ~1.22%) ; ;YL2-1-1
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86 2015 THEFAVORABLEPETROLEUM ACCUMULATIONBELTSAND EXPLORATIONTARGETSIN QIONGDONGNANBASIN ONTHE MARGIN OFNORTHERNSOUTHCHINASEA HU Yang 1 ZHANG Wei 23 ZHANGJingru 23 GONG Xiaofeng 23 LIXiaotang 23 LIUZhijie 23 (1.SchoolofNuclearResearchEngineeringofUniversityofSouthChinaHengyang421001China; 2.KeyLaboratoryofMarginalSeaGeologyGuangzhouInstituteofGeochemistryChineseAcademyofSciencesGuangzhou510640China; 3.UniversityofChineseAcademyofSciencesBeijing100049China) Abstract:TheQiongdongnanBasinislocatedinthejunctureofthePacificplateIndia-Australiaplateand EurasianplateandcharacterizedbycomplexCenozoictectonicandsedimentaryevolutionandpetroleum geology.thebasictectonicpaternin E-WzonationandS-Nsegmentation madethedepressionsofthe basindiferentinthedistributionofvalidsourcerockspetroleumaccumulationconditionsstratigraphic andsedimentarysystemandstructuralframework.basedonthetectonicevolutionandsedimentaryfiling historycombinedwithoilandgasexplorationpracticeinthebasinwegeneralizedfourfavorablepetrole- umaccumulationbeltsincludingtheyanansaganditssurroundingareathenorthernareaofbaodaosag theno.2fracturetectonicbeltandthesouthernuplift(lowuplift)area.accordingtothepetroleumgeo- logicalfeaturesthispaperanalyzedindepththesourcerocksreservoir-capassemblagespetroleumcon- ductionandmigrationconditionsaswelashydrocarbonaccumulation modelsofeachfavorablepetroleum accumulationbeltandmainaccumulationcontrolingfactorsofeachbeltwerealsofiguredoutbasedona- bovework.finalyweproposedtheprospectingtargetsofthebasinsoastoprovidesomecluesforthe futureoilandgasexplorationandresourcesassessment. Keywords:favorablepetroleum accumulationbelt;petroleum geologycharacteristic;accumulationcon- trolingfactors;explorationtargets;qiongdongnanbasin