;2 ;3 15 ;4 10 ;5 9 ;6 104 ;7 6 1 ( ) Fig.1 Outlinemapoffaultsystem &structureunitsinqudifaultednosearea(withtectonicseting) a. ;b. ( 2-a) 2

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1 GeologicalScienceandTechnologyInformation Vol.36 No.3 May 2017 doi: /j.cnki.dzkq ,,,. [J].,2017,36(3): , 2, 1, 1, 3 1, (1., ;2. ( ), ; 3. ( ), ) :, NW NE, NW,, ;,, 95%, 60%, : ; ; ; ; :P :A : (2017) km 2 1.1, (, ), NE, ( 1) NE 17km,NW ( 1), 8km, NW, 1100~2300 m, 1200m, 3000, 1.2 [4-9],,, NEE ;,,,,, ( 2),,, ( ) ( ) ( ) x4 104-x3 104-x7 1 [1-3], : : (1964 : ),,, sddydd@163.com : (1964 ),,, xianglb@cug.edu.cn

2 ;2 ;3 15 ;4 10 ;5 9 ;6 104 ;7 6 1 ( ) Fig.1 Outlinemapoffaultsystem &structureunitsinqudifaultednosearea(withtectonicseting) a. ;b. ( 2-a) 2 Fig.2 EnechelonfaultsandtheminusflowerstructureintheQudifaultednose 105 7km NS,,, 20~120 m,,, a. ;b. ( 3-a) 3 Fig.3 ArchingfaultsysteminQudifaultednose

3 3 : 29 ( 3), ( 21 ) NS ) 1.5km 2, ( 8~ 9 ) ; NE,, 9, NWW, 10 ~ 15, 12~14 km, 0.5~2km, x x7 104-x8 NEE, 10km 1.8km, [15], EW,,,,,, NW 2.5, ( ) 9~ , 15km 2.5km, NE, 2,, 3, ( 1) 2.6 2,, 104-x4 104-x3 104-x7 105 NS, 7km ~2.6km, ; 8~ 9 15 NWW,,, km, 2km, 2 km 2km,,, NE 2.2 NEE 104~,, 10, 104~ 10, 3, 3.1, [10-14], [14], 2.4, ( 9~ 103 ) 10 9, 1.0~0.8,, 16km 1.5km, NE ( ), ( 103 ) NW, 0.12~0.62, ( 4) ; ( 9-

4 , [17],, 3.2, ; [14-16],,,, ( 5) [16], 4 Fig.4 SketchofQudifaultnosetensileintensityandthedistributionofoil 5 Fig.5 SketchshowingtherelationshipbetweentheshearingcompressivepartandtheoildistributioninQudifaultednose [19] 3.3, [20] 2 [18-21]

5 3 : 31, [21] 3 3,, ( ), (2) NE, ;, 4 (3) 1,, ( t, 24~ t) 95%, 2 5%,,, ;,, ( 51.43%) ( 23., 36%) ( 19.78%), 1200m, (4), 95%, % ; 71%,,,,,,, : [1]. : 25.36% 30.10%, [M]. :,,, [2],,,. [J]. 1,2002,29(2): , :,1998,34(4): [3],,. [J]. Table1 Statisticsofreservesdistributionintectonicunits ofqudifaultednose [4]. [J].,2005,27 (2): [5],, /. [J] t /%,2006,13(2):5-7. [6],. [J].,2008,24(4):7-12. (1) [7],,,. [J]. :,1982(3):4-16. [8],,. [J].,2007,14(5): [9],. [J].,2000,21(2): [10]SchlischeR W.Geometryandoriginoffault-relatedfoldsinex- ten-sionalsetings[j].aapg Buletin,1995,79(11): [11]FauldsJE,OlsonEL,HarlanSS,eta1.Mioceneextensionand

6 fault-relatedfoldinginthehighlandrange,southernnevada: Athree-dimensionalperspective[J].JournalofStructuralGeol- ogy,2002,24(4): [12]JacksonC A L,GawthorpeRL,SharpIR.Styleandsequence ofdeformation duringextensionalfault-propagationfolding: ExamplesfromtheHammam FaraunandEI-Qaafaultblocks, SuezRift,Egypt[J].JournalofStructuralGeology,2006,28 (3): [13]. :,2010,31(2): [J].,2012,24(2):16-20,76. [14],. [J].,2012,64(2): [J].,2006,27(1):1-7. [15],,,.,2011,1(4):16-20,27. [J].,2014,49(4): [16],. : [J].,2011,23(4): [17],. [J].,2006,25(9/10): [19]. [J]. [20],,,. [21]. S [J]. Stress-MechanismofQudiFaultedNoseand ItsControlingonTectonicStructureandOilDistribution DongDong 1,XiangLongbin 2,ChengJianli 1,NiuFuling 1,Zhang Weihai 3,ChuQilong 1 (1.LumingOil&GasExplorationandDevelopmentCo.,Ltd., ShengliOilfield,SINOPEC,DongyingShandong257000,China; 2.ChinaUniversityofGeosciences(Wuhan),Wuhan430074,China; 3.ChinaUniversityofPetroleum(Huadong),QingdaoShandong266580,China) [18],,,. [J].,2006,33(6):1336- Abstract:Qudifaultednoseisabig-faultednosestructure withrichoilinshalowlayerofjiyangsag, whichwasformedunderthe multi-stressfunctionsincludingthetensional,torsionalandarching.qudi faultednosewasformedundergroundthecontinuousfunctionofnwtensilestressandnedextralsliptor- sionalstresssincepaleogenewithatectonicpaternof onegraben,twohorstsandtwofaultsteps,and finalythenw ridgezone wasformedsincethelatepaleogeneunderthe baseblockdiferentialarching movement.diferentstress mechanism hasdiferentefectsonoilandgasdistribution.undertension stress,themainareaofthefaultednosehasaweakfaultingactivityandanoil-enrichmentandtheeastand westwingshaveastrongfaultingactivitywithpooroilaccumulation.undertorsionalstress,theshearing- compressivepartofthefaultisfavorableforoilaccumulationandtheshearing-tensionalpartisunfavor- able.thearchingstressmadeoilmigrateverticalyonalargescaleandleadtotheformationofthe ridge zone withseriesofnewfaultedtraps,thatisthemostidealaccumulatingarea.thestressfunctiondifers withtectonicpartsoffaultandcreatingdiferenttectonicunitswithdiferentaccumulationcharacters.ac- cordingtothestatistic,95% ofknownreservesisdistributedinthetwohorstsandonegrabenunits,and amongwhich60%isaccumulatedinthe ridgezone unit,whichindicatesthatthestructuralhighisthe mostimportantfactorforoilandgasaccumulationinthequdifaultednose. Keywords:Qudi;faultednose;stressmechanism;slipefect;oildistribution

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