沙漠沉积特征——以江陵凹陷白垩系红花套组为例  

Desert Depositional Characteristics——By Taking Cretaceous Honghuatao Formation in Jiangling Depression for Example

作　　者：贺其川[1] 

机构地区：[1]中石化江汉油田分公司荆州采油厂,湖北荆州434000

出　　处：《石油天然气学报》2011年第7期24-27,5,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05023-001-003);中海石油(中国)有限公司项目(CNOOCRC-2008-KTYJ-014)

摘　　要：国内对古沙漠沉积研究较少,随着油气勘探在古沙漠巨厚砂岩中发现油藏,引起了对古沙漠研究的重视。江陵凹陷白垩系红花套组是优良的油气储集层,2008年取得油气勘探的重大突破,但沉积环境是个具有争议的问题。通过沉积背景分析、野外露头分析、钻井资料分析,并与现代沙漠沉积的对比分析,认为红花套岩性上为厚层综红色砂岩,明显不同于河湖沉积,而结构组分上与现代沙漠结构组分相似,粒度曲线及粒度参数特征分析也与相代沙漠相似。综合分析认为江陵凹陷红花套组为沙漠沉积。The palaeo-desert sediments were rarely studied domestically,by finding reservoirs in the huge thickness of palaeo-desert sandstones in China,study on the palaeo-desert deposits was emphasized.The Cretaceous Honghuatao Formation in Jiangling Depression was an optimal oil reservoir,great achievement of oil exploration was obtained in 2008,of which the sedimentary environment was the argument.The sedimentary environment,field outcrops and well drilling data are analyzed and contrasted with that of modern desert deposits,it considered that the lithology of Honghuatao Formation is a thick and brown-red sandstone,it is different with that of lake-river deposits,its structural composition is similar with that of modern desert,its grain curve and parameters are also similar with those of the modern desert.The integral analysis shows that Honghuatao Formation is a desert deposit.

关 键 词：江陵凹陷 白垩系 红花套组 沉积环境 沙漠沉积 

分 类 号：P618.13[天文地球—矿床学]