层序地层特征与油气成藏关系——以塔中4油田为例
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摘要
将层序地层学理论与油气成藏理论相结合,从层序特征、沉积体系和油气成藏条件等方面探讨了塔中4油田CI油组层序地层特征与油气成藏模式。综合利用地震、测井及岩心资料,开展塔中4油田CI油组层序地层学研究,将其划分为2个三级层序、5个准层序组、9个准层序。在层序地层格架内进行沉积特征研究,确立研究区发育潮坪和三角洲两类沉积体系。在层序及沉积特征研究基础上,对油气成藏的要素进行分析,确立沿断输导它源成藏模式。CI油组本身烃源岩不发育,油气主要来源于下覆奥陶和寒武统烃源岩。储集层主要分布在SQ1及SQ2的海侵体系域。油气从烃源岩中沿着大断裂向上运移到CI油组成藏,发育有岩性、断层-岩性及微背斜3种类型油气藏。
Combined with the theory of sequence stratigraphy and hydrocarbon accumulation,the characteristics of sequence stratigraphy and hydrocarbon accumulation mode of CI oil group in Tazhong 4 oilfield are discussed which is based on the sequence characteristics and sedimentary system and hydrocarbon accumulation conditions,etc.Using the datum of seismic,well logging and coring,CI oil group in Tazhong 4 oilfield can be divided into 2 third-order sequences,5 subsequences units,9 parasequences,and both tidal and Delta depositional systems have been identificated by research of faces in the trellis of sequence stratigraphy.On the basis of the sequence and sedimentary characteristics,hydrocarbon accumulation elements of petroleum geology are analyzed,and hydrocarbon accumulation along the fault-transporting allochthonous model has been established.For hydrocarbon sources rocks are hardly found in CI oil group,oil and gas comes mainly from the underlying Ordovician and Cambrian source rocks,reservoirs are mainly distributed in transgressive system tracts of SQ1 and SQ2.Oil and gas along the big break migrated up to CI oil group and accumulation.There types of reservoirs of lithologic hydrocarbon,faults-lithologic hydrocarbon and micro-anticline are developed.
引文
[1]解习农,李思田.陆相盆地层序地层研究特点[J].地质科技情,1993,12(1):22-26.Xie Xinong,Li Sitian.Geological Science and Technology Information,1993,12(1):22-26.
    [2]魏魁生,徐怀大.华北典型箕状断陷盆地层序地层学模式及其与油气赋存关系[J].地球科学:中国地质大学学报,1993,18(2):139-149.Wei Kuisheng,Xu Huaida.Earth Science:Journal of China University of Geosciences,1993,18(2):139-149.
    [3]纪友亮.陆相断陷湖盆层序地层学[M].北京:石油工业出版社,1996.Ji Youliang.Sequence stratigraphy of continental rift basin[M].Beijing:Petroleum Industry Press,1996.
    [4]胡受权,颜其彬,张永贵.断陷湖盆陡坡带陆相层序体系域与油气藏成藏类型[J].石油勘探与开发,1992,26(1):13-17.Hu Shouquan,Yan Qibin,Zhang Yonggui.Petroleum Exploration and Development,1992,26(1):13-17.
    [5]田昌炳,贾爱林.层序地层学在塔中4油田CI油组开发中的应用[J].石油勘探与开发,1996,23(4):46-49.Tian Changbing,Jia Ailin.Petroleum Exploration and Development,1996,23(4):46-49.
    [6]许杰,郭建华.塔里木盆地石炭系层序地层研究[J].海洋地质动态,2008,24(10):19-28.Xu Jie,Guo Jianhua.Marine Geology Letters,2008,24(10):19-28.
    [7]郭建华,刘生国,肖传桃,等.塔中卡拉沙依组-小海子组层序地层与沉积相[J].石油与天然气地质,1995,16(3):265-271.Guo Jianhua,Liu Shengguo,Xiao Chuantao,et al.Oil&Gas Geology,1995,16(3):265-271.
    [8]周小进,范明,邱蕴玉.塔里木盆地塔中地区油气特征及成藏模式探讨[J].石油实验地质,1997,19(2):148-152.Zhou Xiaojin,Fan Ming,Qiu Yunyu.Experimental Petroleum Geology,1997,19(2):148-152.
    [9]刘文龙,孙德君,张晓东,等.塔里木盆地塔中4油田成藏演化史[J].大庆石油地质与开发,2001,12(6):20-22.Liu Wenlong,Sun Dejun,Zhang Xiaodong,et al.Petroleum Geology&Oilfield Development in Daqing,2001,12(6):20-22.
    [10]刘克奇,苏振阁.塔里木盆地塔中4油田油气成藏条件与成藏模式[J].石油大学学报:自然科学版,2005,29(2):6-10.Liu Keqi,Su Zhenge.Journal of the University of Petroleum,China:Edition of Natural Science,2005,29(2):6-10.

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