廊固凹陷下第三系层序地层及构造演化

英文篇名：SEQUENCE STRATIGRAPHY AND STRUCTURAL SEQUENCE EVOLVEMENT OF LAN-GGU DEPRESSION IN LOWER TERTIARY
中文刊名：物探化探计算技术
英文刊名：Computing Techniques for Geophysical and Geochemical Exploration
作者：鲜强 ; 李仲东 ; 傅恒 ; 宋荣彩 ; 郑敬贵
英文作者：XIAN Qiang ; LI Zhong-dong ; FU Heng ; et al.(College of Energy Resources Chengdu University of Technology ; Chengdu 610059 ; China).
中文关键词：廊固凹陷 ; 层序地层 ; 构造演化 ; 断陷盆地
英文关键词：Langgu depression ; sequence stratigraphy ; structure evolution ; continental rift-subsidence bansin
出版日期：2007-05-15
机构：成都理工大学能源学院,成都理工大学能源学院,成都理工大学能源学院,成都理工大学能源学院,成都理工大学能源学院成都610059,成都610059,成都610059,成都610059,成都610059
年：2007
期：03
出版单位：物探化探计算技术

摘要

廊固凹陷已进入“成熟”盆地勘探阶段,为进一步拓展油气勘探的新领域,利用层序地层学理论对凹陷进行整体研究,并为隐蔽油气藏勘探打下铺垫。综合对地震、岩心、测井及古生物等资料的分析,将凹陷下第三系划分为三个二级层序,11个三级层序。断陷盆地,二级层序发育的主控因素是构造沉降,构造沉降和气候控制了三级层序的发育。三级层序SQ1-SQ3发育时期为断陷初始期,SQ4-SQ7为强烈断陷期,SQ8-SQ11为断陷回返及消亡期。
Langgu depression has been to a mature period of basin exploration.In order to expand new region of oil exploration,sequence stratigraphy are used to study the depression and forecast oil exploration.Lower tertiary strata of Langgu depression are divided into 3 second-order sequences and 11 third-order sequences after data analysis of seismology,lithology,well logging,paleontology etc..Structure evolution dominated the evolvement of sequence-filling succession and structural activity controlled supersequence.Structural activity and weather controlled three order sequences.SQ1-SQ3 deposited at the beginning time of rifting.When depression rift intensely,SQ4-SQ7 deposited.SQ8-SQ11 deposited at the disappearing time of rifting.

引文

[1]VAIL P R,MITCHUM R M,THOMPSON S.Glabal cy-cles ofrelative changes of sea level,In:Seismic Stratig-raphy in well,cores and outcrops-concept for high-res-olution correlation of times and facies[J].AAPG Meth-ods in Exploration Series,1977,(7):1.
    [2]吴因业,顾家裕.油气层序地层学[M].北京:石油工业出版社,2002.
    [3]张世奇,纪友亮.陆相断陷盆地层序地层学模式探讨[J].石油勘探与开发,1996,23(5):20.
    [4]李德生.渤海湾含油气盆地的地质构造特征[J].石油学报,1980,(1):1.
    [5]董国臣,孙景民.廊固凹陷古近系层序地层特征及油气储集规律探讨[J].中国地质,2002,29(4):11.
    [6]柳蓉,陈波.旧州~固安构造带沙三段地层划分与对比[J].江汉石油学院学报,2003,25(1):3.
    [7]蔡希源,李思田.陆相盆地高精度层序地层学~隐蔽油气藏勘探基础、方法与实践-基础理论篇[M].北京:地质出版社,2004.