苏北盆地金湖凹陷古近系戴南组重力流水道沉积

英文篇名：Sedimentary characteristics of gravity flow channel of Dainan Formation in Jinhu Sag,Subei Basin
中文刊名：内蒙古石油化工
英文刊名：Inner Mongolia Petrochemical Industry
作者：张喜林 ; 朱筱敏
英文作者：ZHANG Xi-lin1 ; ZHU Xiao-min2(1.CNOOC Research Institute ; Beijing 100027 ; 2.China University of Petroleum ; Beijing 102249)
中文关键词：苏北盆地 ; 戴南组 ; 重力流水道 ; 断陷湖盆 ; 同沉积断层 ; 古近系
英文关键词：Subei Basin ; Dainan Formation ; Syn-Depositional Fault ; Gravity Flow Channel ; Faulted Lacustrine Basin ; Pleogene
出版日期：2011-01-15
机构：中海油研究总院;中国石油大学(北京)资源与信息学院;
年：2011
期：01
出版单位：内蒙古石油化工

摘要

金湖凹陷古近系戴南组发育重力流水道沉积。通过地震、测井、岩心和实验资料的分析,论述了重力流水道的成因、沉积特征和分布规律。重力流水道与间歇性洪水作用及其对先期未固结的三角洲沉积的冲刷、再搬运及沉积作用相关,分布于盆内顺源同沉积断层形成的断槽内,可分为主水道和侧缘两个亚相。建立了重力流水道的垂向沉积序列模式。研究表明,重力流水道是一种有利的油气储集相带。研究结果扩大了苏北盆地油气勘探领域。
Gravity flow channel developed in Dainan Formation,Paleogene in Gaoyou Sag,Subei Basin.Based on the integrated analysis on the data of seismic,logging,core and laboratory rock tests,the sedimentary characteristics and distribution rules of gravity flow channel were discussed.The formation of gravity flow channel is due to the intermittent floodwater and its scouring,re-transportation,and re-deposition of sediments of delta.The gravity flow channel is developed along the fault-trough formed by syn-depositional fault in the sag,and can be divided into two subfacies: channel and lateral margin.Vertical sedimentary sequence model is established based on integrated studies.This study provides a new oil & Gas exploring realm in Subei Basin.

引文

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