古水深确定及盆地地形方法研究-以环县-贺旗地区延长组8段为例  

Determination of paleo water depth and study of basin topography-Taking member 8 of Yanchang Formation in Huanxian Heqi area as an example

作　　者：吴天琦[1] 何江 赵忠军 闫荣辉 姚坚 罗婉毓 Wu Tianqi;he Jiang;Zhao Zhongjun;Yan Ronghui;Yao Jian;Luo Wanyu(School of Earth Science and Technology,Southwest Petroleum University,Chengdu 610500;PetroChina Changqing Oilfield Company,Xi'an 710000;School of Petroleum and Natural Gas Engineering,Southwest Petroleum University,Chengdu 610500)

机构地区：[1]西南石油大学地球科学与技术学院,四川成都610500 [2]中国石油长庆油田分公司,陕西西安710000 [3]西南石油大学石油与天然气工程学院,四川成都610500

出　　处：《石化技术》2022年第6期120-122,共3页Petrochemical Industry Technology

摘　　要：延长组油气勘探取得了一系列的勘探成果,大量的研究主要集中于沉积相研究。然而还缺乏对研究区长8段水体深度和盆地地形的研究,这制约了砂体的分布的定量预测。本次研究以沉积学、古生物学以及地球化学的方法,对环县-贺旗地区的延长组8段开展研究,较准确地恢复了古水深盆底形态特征,该研究对于深化沉积相及古地理研究具有基础性作用。a series of exploration achievements have been made in the oil and gas exploration of Yanchang formation,and a large number of studies mainly focus on the study of sedimentary facies.However,there is a lack of research on the water depth and basin topography of Chang 8 member in the study area,which restricts the quantitative prediction of sand body distribution.In this study,the methods of sedimentology,paleontology and geochemistry are used to study the 8 member of Yanchang Formation in Huanxian Heqi area,and the morphological characteristics of ancient water depth basin bottom are recovered.This study plays a basic role in deepening the study of sedimentary facies and paleogeography.

关 键 词：沉积构造 潜穴 水深 沉积相 延长组 

分 类 号：P618.13[天文地球—矿床学]