构造坡折带隐蔽圈闭发育模式浅析_卢红霞

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1、l:2008- 11- 18;:2008- 12- 26Te:S)(1983) ),o,SvV,?T0卢红霞1,陈振林2,李天义1(11Sv3,q430074;21Sv,q430074)K 1:构造坡折带是由同沉积构造长期活动引起的沉积斜坡明显突变的地带,对盆地充填的可容纳空间和沉积作用可产生重要的影响,构造坡折带和油气资源分布有着较为密切的关系b隐蔽圈闭是沉积盆地油气勘探中后期重点勘探领域b构造坡折带是沉积盆地中隐蔽圈闭最发育的部位之一,多级构造坡折带组合对盆地隐蔽圈闭的发育有一定的影响,多级构造坡折带隐蔽圈闭发育更受到沉积环境和湖平面变化的影响;构造坡折带地区隐蔽圈闭油气成藏良好,高位域和

2、三角洲前缘泥岩是良好的烃源岩,连片砂体和不整合界面及生长断裂是良好的输导条件,生长断裂和高位域泥岩具有良好的封盖作用b1oM:;/|;7;Hqms|:TE12213 DSM:ATheory of developmental model of subtle trapformed by structural slope break zoneLuHongxia1, Chen Zhenlin2, LiTianyi1(11 Faculty of Graduate School, China University of Geosciences, Wuhan 430074;21Faculty of Eart

3、h Resources, China University of Geosciences, Wuhan 430074)Abstract:The structural slope break zone(SSBZ) is initiated by the long term activity of syndepositionalstructurewhich constrains thechangein the accommodation spaceof thebasins, controls the developmentof thedepositionalsequenceand thedistr

4、ibution of thedepositionalsystem tracts and thesandbodies, andresultsin the abrupt changeof the depositional slope1 Researches show that distribution of petroleum isclosely connected with theSSBZ1 Subtletraps areconsidered as thekey exploration targets in the future1Traps formed by structuralslopebe

5、lt and incised valley traps aredominated by oiland gas1 Thereservoirforming condition is goodon thestructuralslopebreak zone1Key words:sedimentarybasin; structuralslopebreakzone(SSBZ); subtletrap; reservoir forming condition11966MSFELevorsen471,WcFbd9,W7%B9%12%b-?C7B,W)+vvB2- 3,=j:BBvB,FV%41 108 t,S

7、K1+$M,7OA,/|V?CdKb,+VCBQQHWa$9v,iAdQCb2 /|7?Ts/|7,$vdHdO|,dO|e8a)L8?,8?8s1eTbVail(1991)n5|3|Q?3$vdH11b,HowellFlint,%Z?T$vdHdO|12bS=7|dM,?Z,/|7?W1MbbM,Ll$9|8Ta8Z+W1b211 /|7?T/|lM,Md,9d7b-vLl$,7T1m1Ub,/|/,yN|Kuu,a/M#),V7V?a/Mi8Bb6,8/,|#QV?B%g8,8$CvM,9?BbH,Ks/%rT,VB.7;7/|=v()M();|/u,a|d8s8,dO|H3H(|)(Posamiter,1988;Vail,1990,1991;Wagoner,1990;Mitchum,1993)bLlV?71,|M1M!8K513;,|0,|=

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