第27卷第4期 2013年8月
现代地质 GEOSCIENCE
Vol.27No. 4 Aug.2013
露头层序地层学在上扬子地区页岩气初期勘探中的
应用：以下寒武统牛蹄塘组为例张俊鹏12，樊太亮12，张金川1.2，李一凡12，伍岳1,2
（80001国80001 摘要：依据露头层序地层学的基本原理和基本工作方法及思路，对上扬子地区寒武系进行层序划分与对比，并在早寒武世三级层序内探讨沉积相平面展布与空间分布。早寒武世扬子地台被动大陆边缘一侧持续发生海侵，沉积体系域以海侵体系域TST和高位体系域HST为主，缺乏低位体系域LST。分别编制海侵期和高位期两幅不同时期的沉积模式图表现三级层序的沉积体系特征，并对目的层段牛蹄塘组黑色页岩作出评价，从而揭示出露头层序地层学在页岩气初期勘探中的重要应用价值。
关键词：露头层序地层学；三级层序；沉积相分布；页岩气勘探
中图分类号：P539.2；TE121.3
文献标志码：A
文章编号：10008527(2013)04097808
Application of Outcrop Sequence Stratigraphy ontheInitialExploration of ShaleGasinUpperYangtzeRegion:TakingNiutitangFormation
in Lower Cambrian as an Example
ZHANG Jun-peng'2, FAN Tai-liang'2, ZHANG Jin-chuan'2, LI Yi-fan'2, WU Yue'.2( 1. School of Energy Resources, China Unirersity of Geosciences , Bejing100083, China; 2. Key Laboratory of Marine Resereoir
Eaolution and Hydrocarbon Accamularion Mechanism, Ministry of Educarion, China Unirersity of Geosciences, Bejing 100083, China)
Abstract: In this article, with the basic principle and method of sequence stratigraphy, the discrimination and contrast of Cambrian sequence in the Upper Yangtze region were made, and the plane and spatial distribution of sedimentary facies were studied within three-order sequences in Early Cambrian. During Early Cambrian, trans-gression happened continuously on the passive continental marginal side of Yangtze platform, so the systems tracts mainly included TST and HST, missing LST. Therefore, two sedimentation models of two stages, i. e. transgression stage and high stand stage were identified, which revealed the sedimentary characteristics of Cam-brian sequence. Taking the black shale of Niutitang Formation in Lower Cambrian as an example, the shale res-ervoir was evaluated, and the result indicated that the sequence stratigraphy of outcrops was evaluable in the ini-tial exploration of shale gas.
Key words : outcrop sequence stratigraphy; three-order sequence; distribution of sedimentary facies; explora tion of shalegas
0引言
于初期阶段。页岩气是指采自泥页岩（主要指烃源岩）且具有工业价值的烃类气体。因此，页岩气是
由于起步较晚，我国的页岩气勘探开发尚处以富有机质泥页岩为气源岩、储层以及封盖层，
收稿日期：2012-06-15；改回日期：2013-04-20；责任编辑：潘令枝。基金项目：国家重大科技专项项目（2009GYXQ15-04）。
作者简介：张俊鹏，男，博士研究生，1988年出生，矿产普查与勘探专业，主要从事石油地质、页岩气勘探与开发方面研究，
Email;vip707669699@foxmail.com。