高校地质学报2016，Vol.22Issue(3)：519-529,11.DOI:10.16108/j.issn1006-7493.2014055
苏丹Muglad盆地Nugara凹陷AG组层序地层及地震相研究
Study on the Sequence Stratigrahy and Seismic Facies of the Abu Gabra Formation in Nugara Depression,Muglad Basin,Sudan
王欣 1朱筱敏 2吴冬 3李志 4鲜本忠 5刘爱香 3陈青云 5高日胜 6南征兵5
作者信息
- 1. 中海油研究总院，北京100027
- 2. 中国石油大学 北京 地球科学学院，北京102249
- 3. 中国石油大学 北京 地球科学学院，北京102249
- 4. 中国石化胜利油田勘探开发研究院，东营257015
- 5. 中国石油勘探开发研究院，北京100083
- 6. 江西省地质矿产勘查开发局，南昌330002
- 折叠
摘要
Abstract
Based on integrated analysis of seismic and well logging data, the AG Formation, a supersequence, in the Nugara Depression of Muglad Basin of Sudan can be subdivided into five 3rd order sequences named SQA~SQE from the bottom to the top. The characteristics of each sequence boundary are clearly shown in both seismic profiles and well logs. In the sequence stratigraphic framework, according to the internal reflection textures and external geometric configurations and in combination with characteristics of seismic amplitude, continuity and frequency, five seismic facies are identified in the AG Formation including parallel-subparallel sheet, wedge shaped, foreset, moundy and unorganized seismic facies. These seismic facies can help build the evolution model of sedimentary facies because these facies should be continuous and can be inherited. The normal delta, braided delta, fan delta, lacustrine system and alluvial fan can be recognized based on seismic data, well data as well as cores. The seismic-sedimentary facies evolution and its controlling factors are also analyzed in this paper.关键词
Muglad盆地/AG组/层序地层/地震相/沉积相Key words
Muglad Basin/Abu Gabra Formation/sequence stratigraphy/seismic facies/sedimentary facies分类
天文与地球科学引用本文复制引用
王欣,朱筱敏,吴冬,李志,鲜本忠,刘爱香,陈青云,高日胜,南征兵..苏丹Muglad盆地Nugara凹陷AG组层序地层及地震相研究[J].高校地质学报,2016,22(3):519-529,11.
