操应长;户瑞宁;王健;徐琦松;陈洪;宿云国;

• 1:中国石油大学(华东)地球科学与技术学院

• 2:海洋国家实验室海洋矿产资源评价与探测技术功能实验室

• 3:中国石油新疆油田分公司勘探开发研究院

• 4:中国石油新疆油田分公司新港作业公司

摘要(Abstract)：

为认识准噶尔盆地阜东斜坡区侏罗系层序地层及沉积体系展布,根据层序地层学理论,综合地震、测井、录井及岩心资料,并结合各层序井—震联合标定,对准噶尔盆地阜东斜坡区侏罗系进行层序地层划分,建立层序地层格架。结果表明:在该地区共识别3个二级层序界面和5个三级层序界面,划分7个三级层序;二级层序界面对应侏罗系顶、底界面及西山窑组沉积末期;三级层序自下而上对应八道湾组下段、八道湾组上段、三工河组、西山窑组、头屯河组、齐古组及喀拉扎组地层;根据层序地层结构特征,将7个三级层序分为二分层序、三分层序和四分层序3种类型。该地区沉积相类型主要包括扇三角洲、辫状河三角洲、曲流河三角洲、辫状河—曲流河和湖泊相,其中辫状河三角洲相是主要沉积相类型。SQ1—SQ6层序格架内,沉积相演化依次表现为扇三角洲(八道湾组,即SQ1—SQ2)—辫状河三角洲(三工河组,即SQ3)—曲流河三角洲(西山窑组,即SQ4)—辫状河—曲流河(头屯河组,即SQ5)—曲流河(齐古组,即SQ6)的演化序列,整体上侏罗系形成一套正旋回,粒度自下而上由粗逐渐变细。综合分析各层序地层特征及沉积体系展布规律,为寻找优质储集砂体、确定有利勘探方向提供重要证据。

关键词(KeyWords)：准噶尔盆地;阜东斜坡区;侏罗系;层序地层格架;沉积特征

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(U1262203);; 国家重点基础研究发展计划(“973”计划)项目(2014CB239002)

作者(Author):操应长;户瑞宁;王健;徐琦松;陈洪;宿云国;

Email:

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