Seismic Sedimentary Facies Study Based on High-Resolution Sequence Framework: A Case Study on Sequence Sqd2 in Liaozhong Depression
详细信息
- 责任者：Wu Wei (Institute of Resources & Environment ; Henan Polytechnic University ; Jiaozuo 454003 ; China) ; Lin Changsong
- 刊名：Oil Geophysical Prospecting
- 出版年：2012
- 卷期：47(1)
- 关键词：三角洲环境 ; deltaic environment ; 层序地层学 ; sequence stratigraphy ; 辽宁 ; Liaoning Province
- 页码：p.133-141
- 图表：6 illus., 20 refs.
- 分类号：0803
- 出版序号：20130200
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
Regarding the Dongying clastic formation of Liaozhong Depression, high-resolution sequence and seismic sedimentary studies were utilized to describe sedimentary facies in order to disclose the distribution and controlling factors of the sedimentary system. The results show that the strata of Dongying Formation in Liaozhong Depression could be divided into three third-order sequences (Sqd1, Sqd2 and Sqd3). Two four-order sequences in the sequence Sqd2 could be identified by tracing a set of regressive boundaries. Based on seismic interpretation combined with logging characteristics,the seismic facies of delta, braided delta, turbidite fan were identified. Distribution of sedimentary facies of fourth-order sequences could also be dominated by water system, ancient landform, relative lake level change and palaeoclimate.
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