JOURNAL OF PALAEOGEOGRAPHY ›› 2012, Vol. 14 ›› Issue (5): 553-564. doi: 10.7605/gdlxb.2012.05.001

• LITHOFACIES PALAEOGEOGRAPHY AND SEDIMENTOLOGY •     Next Articles

Characteristics and sedimentary evolution of the Member 1 of Paleogene Kongdian Formation of Weibei Sag in Shandong Province

Chen Shiyue1 Wang Ling1 Zhou Qingbo1 Bai Jingbo2
Li Wentao3 Sun Tingbin1 Han Min3   

  1. 1 School of Geosciences，China University of Petroleum，Qingdao 266580，Shandong
    2 Research Institute of Petroleum Exploration & Development，PetroChina，Beijing 100083
    3 Research Institute of Geological Sciences of Shengli Oilfield，SINOPEC，Dongying 257061，Shandong
  • Received:2012-06-01 Revised:2012-07-17 Online:2012-10-01 Published:2012-10-01
  • About author:Chen Shiyue，born in 1963，obtained his Ph.D.degree from China University of Mining and Technology in 1995.Now he is a professor and doctoral supervisor in China University of Petroleum and is engaged in sedimentology and lithofacies palaeogeography.E-mail: chenshiyue@vip.sina.com.

山东潍北凹陷古近系孔店组一段特征及沉积演化

陈世悦1 王 玲1 周清波1 白静波2 李文涛3 孙廷彬1 韩 敏3   

  1. 1 中国石油大学（华东）地球科学与技术学院，山东青岛 266580
    2 中国石油勘探开发研究院，北京 100083
    3 中国石化胜利油田地质院，山东东营 257061
  • 作者简介:陈世悦，男，1963年生，1995年毕业于中国矿业大学，获博士学位，现为中国石油大学（华东）教授，博士生导师，研究方向为沉积学及岩相古地理学。E-mail:chenshiyue@vip.sina.com。

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Abstract: Based on the comprehensive analysis of cores， drilling well，logging and seismic data，the stratigraphic characteristics and sedimentary evolution in the Member 1 of Paleogene Kongdian Formation in Weibei Sag was analyzed.This study suggests that the Member 1 of Kongdian Formation was divided into 3 sub-members，containing 11 sand sets.Controlled by Tangwu-Gegou fault in the west and Changyi-Dadian fault in the east，the strata developed stably in the east and west，only in the northern sub-sag belt strata became thicker.Controlled by Gucheng-Weihekou fault in the northern Weibei Sag，the strata overlapped towards the south and thinned generally from north to south.Fan delta facies and lacustrine facies mainly developed in Member 1 of Kongdian Formation in Weibei Sag，and delta developed in small scale in the southern slope belt.During the development of the lower submember of Member 1 of Kongdian Formation，sediment supply was abundant，which formed the large-scale fan-deltas in northern sub-sag belt，Wacheng fault-step belt and Zaohu fault-nose belt.During the development of the middle submember of Member 1 of Kongdian Formation，the depth of water became shallower and sediment supply decreased，fan-deltas inherited the development in northern sub-sag belt，Wacheng fault-step belt and Zaohu fault-nose belt，which distributed in small scale.During the development of the upper submember of Member 1 of Kongdian Formation，the depth of water became the shallowest，the whole area developed shore-shallow lacustrine facies，and only small-scale fan-deltas developed in Wells Yangxie 4 and Chang 11.

Key words: Shandong Province, Weibei Sag, Paleogene, Member 1 of Kongdian Formation, fan delta, sedimentary evolution

摘要： 综合运用岩心、钻井、测井及地震资料，对潍北凹陷古近系孔一段的地层特征及沉积演化进行研究。结果表明：潍北凹陷孔店组一段可以划分为3个亚段、11个砂层组。在西部鄌郚—葛沟断裂和东部昌邑—大店断裂控制下，地层东西向发育稳定，仅在北部洼陷带地层显著加厚；在北部古城—潍河口断层控制下，地层向南部超覆，地层由北向南变薄。潍北凹陷孔店组一段主要发育扇三角洲相和湖泊相，南部斜坡带发育小范围三角洲相。孔一下亚段，物源供给充足，北部洼陷带、瓦城断阶带和灶户断鼻带发育大规模的扇三角洲相；孔一中亚段，湖盆水体变浅，物源供给减少，北部洼陷带、瓦城断阶带和灶户断鼻带继承性发育扇三角洲相，但分布范围变小；孔一上亚段，湖盆水体最浅，物源供给少，全区发育滨浅湖亚相，仅在央斜4井区和昌11井区发育小范围的扇三角洲相沉积。

关键词: 山东省, 潍北凹陷, 古近系, 孔店组一段, 扇三角洲, 沉积演化

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