SEQUENCE CONTROL ON TYPE AND ARCHITECTURE OF RESERVOIR BODY IN RIFT-SUBSIDENCE LAKE BASIN
-
摘要: 断陷湖盆中层序发育、演化取决于相对湖平面(可容空间)的变化和沉积物供给。相对湖平面上升时,湖浪能量增加,湖水向物源方向推进,形成水进型扇三角洲,水进滩坝和滑塌型浊积岩体较发育;相对湖平面下降时,湖水活动急剧减弱,河流能量增强,形成水退型扇三角洲,分流河道砂、砾岩体最为发育,同时也可形成高位滩坝砂、砾岩体和洪水型浊积岩体。在层序不同演化阶段,沉积环境的水动力能量状况有所不同,所形成的砂、砾岩体在平面上的构型有较大差异。Abstract: Sequence development and evolution are determined by relative lake level(accommodation) change and sediment delivery in rift-subsidence lake basin.When relative lake level rises,wave energy increases,lake water prograds toward source area,lake-transgression beach and bar and slumped turbidite increases and lake-transgression fan-delta is formed.When relative lake level dropps,wave energy decreases,fluvial energy increases,lake-regression fan-delta ias formed,sandstone and conglomerate of distributary river course develop,and beach and bar of HST and flood turbidite are formed.Because that hydrodynamic force energy of sedimentary environment in different stages of sequence evolution is different,distribution of sandstone and conglomerate is different.
-
Key words:
- architecture /
- sequence evolution /
- reservoir body /
- rift-subsidence lake basin /
- the Liaohe Basin
-
[1] 吴崇筠.构造湖盆三角洲与油气分布[J].沉积学报,1983,1(1):5~26 [2] 吴崇筠.湖盆砂体类型[J].沉积学报,1986,4(4):1~27 [3] 吴崇筠.对国外浊流沉积和扇三角洲沉积研究的评述[A].见:浊流沉积和扇三角洲译文集[C].北京:石油工业出版社,1986 [4] Gibbons K. Sequence architecture, facies development and carbonate-cemented horizons in the Troll Field reservoir, Offshore Norway[A]. In:Ashton M, ed. Advances in reservoir geology [M]. London: Geological Society Special Publication, 1993 [5] Normark W R, Piper D J W, Hiscott R N. Sea level controls on the textural characteristics and depositional architecture of the Hueneme and associated submarine fan systems, Santa Monica Basin, California[J]. Sedimentology,1998,45(1):53~70 [6] 李应暹.辽河裂谷渐新世初期的扇三角洲[J].石油勘探与开发,1995,22(4):53~60 [7] 陈振岩.辽河盆地新生代断裂与油气关系[J].石油实验地质,2002,24(5):407~412 [8] 董春梅.储集砂砾岩体成因、分布规律及形成条件探讨——以辽河西部凹陷高升油田高二、三区为例[J].石油实验地质,1996,18(3):289~297 [9] 丘东洲.陆盆扇体沉积的形成机制及其油气意义[A].见:第十四届国际沉积学会议论文集[C].北京:石油工业出版社,1990 [10] 赖生华.辽河盆地冷家油田沙三段沉积体系[J].石油实验地质,2004,26(5):469~473 [11] 陈景达.块断运动与隐蔽圈闭——以辽河西部凹陷为例[J].石油实验地质,1982,4(4):254~261 [12] 于兴河.辽河油田东、西部凹陷深层沙河街组成岩演化规律[J].石油实验地质,1999,21(4):291~296 [13] 方世虎.辽河滩海地区西部凹陷成藏条件与成藏模式[J].石油实验地质,2004,26(3):223~228 -
计量
- 文章访问数: 817
- HTML全文浏览量: 86
- PDF下载量: 305
- 被引次数: 0