海拉尔盆地呼和湖凹陷南屯组典型砂体的特征分析
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摘要
根据岩芯、电测曲线、录井、分析化验、地震等资料,分析了呼和湖凹陷下白垩统南屯组沉积相类型、沉积特征以及分布规律。研究表明,南屯组发育扇三角洲、辫状河三角洲、湖底扇和湖泊4种沉积相。扇三角洲主要分布在南一段的西北缓坡带和东南陡坡带,辫状河三角洲主要分布在南二段以及南一段的北部斜坡带,而在深湖-半深湖相中发育湖底扇。指出呼和湖凹陷南部沉积砂体为较有利的勘探区域,其中扇三角洲和辫状河三角洲前缘亚相带是油气聚集的重要相带。
Sedimentary facies types,sedimentary characteristics and distribution law of the Nantun Formation of the Lower Cretacic in the Huhehu depression are analyzed based on the core,well log curve,analysis assay,seismic and so on. The research indicates that the Nantun Formation developed fan delta,braided river delta,sublacustrine fan and lacustrine fan. This paper expounds in detail sedimentary characteristics and identification mark of fan delta,braided river delta and sublacustrine fan in cause,source supply,development position,sedimentary characteristics and seismic reflection characteristic. Fan delta is distributed mainly in the northwestern gentle slope zone and southeastern steep slope zone of the 1st Member of Nantun Formation; braided river delta in the 2nd Member of Nantun Formation and in the northern slope zone of Nanyi section; sublacustrine fan developed in deep lake-half deep lake facies. This paper points out that southern sedimentary sand of the Huhehu depression is the favorable exploration region,in which fan delta and braided river delta front subphase zone is the important hydrocarbon accumulation.
引文
陈均亮,吴河勇,朱德丰,等.2007.海拉尔盆地构造演化及油气勘探前景.地质科学,42(1):147~159.
    崔军平,任战利,肖晖.2007.海拉尔盆地呼和湖凹陷热演化史与油气关系.中国地质,34(5):522~527.
    蔺连第,朗艳,金蕙,等.2005.二连盆地乌里雅斯太凹陷早白垩世湖底扇.石油勘探与开发,32(3):27~32.
    卢双舫,刘晓艳,曲佳燕,等.1995.海拉尔盆地呼和湖凹陷烃源岩原始生烃潜力和原始有机碳的恢复.大庆石油学院,19(3):31~33.
    夏青松,田景春.2007.鄂尔多斯盆地西南部上三叠统长6油层组湖底扇特征.古地理学报,9(1):33~43.
    薛良清,Galloway WE.1991.扇三角洲、辫状河三角洲与三角洲体系的分类.地质学报,25(2):23~29.
    杨子荣,张艳飞,姚远.2008.海拉尔盆地呼和湖凹陷煤层气资源潜力分析.煤田地质与勘探,36(2):15~18.
    张福顺.2005.白音查干凹陷扇三角洲与辫状河三角洲沉积.地球学报,26(6):553~556.
    赵澄林,刘孟慧.1984.湖底扇相模式及其在油气预测中的应用.石油大学学报(自然科学版),(4):1~10.
    赵国连,赵澄林,叶连俊.2005.渤海湾盆地“四扇一沟”沉积体系及其油气意义.地质力学学报,11(3):245~257.
    Hol mes A.1965.Principles of Physical Geology.London,Edinburgh:Thomas Nelson and Sons Ltd.,730.
    Maill A D.1988.Reservoir heterogeneities in fluvial sandstones:lesson fromoutcrop studies.AAPG Bulletin,72(6):682~697.
    McPherson J G,Shanmugam G,Moiola R J.1987.Fan-deltas andbraid-deltas:varieties of coarse-grained deltas.GeologicalSociety of America Bulletin,99(3):331~340.
    Walker R G.1978.Deep-water sandstone facies and ancientsubmarine fans:dels for exploration for stratigraphic traps.AAPG Bull.,62:932~966.

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