[1]沈卫民,靳晓杰,赵美丽,等.鄂尔多斯盆地七里村油田长6和长7重力流沉积的发现及其意义[J].复杂油气藏,2024,17(01):38-43.[doi:10.16181/j.cnki.fzyqc.2024.01.006]
 SHEN Weimin,JIN Xiaojie,ZHAO Meili,et al.Discovery and significance of gravity flow deposits of Chang 6 andChang 7 in Qilicun Oilfield ,Ordos Basin[J].Complex Hydrocarbon Reservoirs,2024,17(01):38-43.[doi:10.16181/j.cnki.fzyqc.2024.01.006]
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鄂尔多斯盆地七里村油田长6和长7重力流沉积的发现及其意义()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
17卷
期数:
2024年01期
页码:
38-43
栏目:
油气勘探
出版日期:
2024-03-25

文章信息/Info

Title:
Discovery and significance of gravity flow deposits of Chang 6 andChang 7 in Qilicun Oilfield ,Ordos Basin
作者:
沈卫民12靳晓杰3赵美丽4刘 星12
1.西安石油大学地球科学与工程学院,陕西 西安 710065;2.西安石油大学陕西省油气成藏地质学重点实验室,陕西 西安 710065;3.中国石油大学(华东)地球科学与技术学院,山东 青岛 266000;4.西安石油大学石油工程学院,陕西 西安 710065
Author(s):
SHEN Weimin12JIN Xiaojie3ZHAO Meili4LIU Xing12
1. School of Geosciences and Engineering,Xi ’an Shiyou University,Xi ’an 710065,China;2. Key Laboratory of Oil and Gas Reservoir Geology in Shaanxi Province,Xi’an Shiyou University,Xi’an 710065,China;3. School of Geoscience and Technology,China University of Petroleum(East China),Qingdao 266000,China;4. School of Petroleum Engineering,Xi ’an Shiyou University,Xi ’an 710065,China
关键词:
重力流沉积类型延长组七里村油田鄂尔多斯盆地
Keywords:
gravity flow deposition typeYanchang FormationQilicun OilfieldOrdos Basin
分类号:
TE132
DOI:
10.16181/j.cnki.fzyqc.2024.01.006
文献标志码:
A
摘要:
基于岩心观察、粒度分析和测井相分析等,在鄂尔多斯盆地东南部七里村油田三叠系延长组长6段和长7段发现了重力流沉积。该区重力流沉积类型主要有滑塌沉积、砂质碎屑流沉积和浊流沉积。研究区重力流的形成过程可分为5个阶段:三角洲前缘沉积阶段、滑动阶段、滑塌阶段、砂质碎屑流沉积阶段和浊流沉积阶段。受湖盆底形、触发机制、古水深等因素共同影响,重力流发育湖底扇模式,砂质碎屑流主要是舌状体;浊流主要是朵叶体。基于物源、坡度和触发条件等的分析,建立研究区重力流沉积演化模式和重力流沉积模式图。
Abstract:
Based on core observation,grain size analysis,and logging facies analysis,gravity flow deposits were discovered in the 6th and the 7th member of the Triassic Yanchang Formation of the Qilicun Oilfield in the southeastern Ordos Basin. This area’s main types of gravity flow deposits are slump deposits,sandy clastic flow deposits,and turbidity flow deposits. The formation process of gravity flow in the study area can be divided into five stages: delta front sedimentation stage,sliding stage,slump stage,sandy clastic flow deposition stage,and turbidity current deposition stage. Under the joint influence of the bottom shape of the lake basin,triggering mechanism,and palaeodepth,the gravity flow develops into a lake bottom fan model,and the sandy debris flow is mainly a tongue. Based on the analysis of provenance,slope,and trigger conditions,the gravity flow depositional evolution model and gravity flow sedimentary model map are established in the study area.

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备注/Memo

备注/Memo:
收稿日期:2023-10-22;改回日期:2024-01-08。
第一作者简介:沈卫民(1997—),在读硕士研究生,石油地质专业。E-mail:2642353946@qq.com。
更新日期/Last Update: 2024-03-25