同沉积生长断层的控砂作用研究——以北部湾福山凹陷永安—白莲地区流沙港组一段为例

王苗; 黄传炎; 左宗鑫; 林正良; 王保华

doi:10.11781/sysydz201402194

同沉积生长断层的控砂作用研究——以北部湾福山凹陷永安—白莲地区流沙港组一段为例

doi: 10.11781/sysydz201402194

1.
中国地质大学(武汉) 构造与油气资源教育部重点实验室, 武汉 430074
2. 中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126
3. 中国地质大学(武汉) 资源学院, 武汉 430074
4. 中国石化石油物探技术研究院, 南京 210014

基金项目: 教育部“构造与油气资源”重点实验室开放基金（TPR-2010-12）资助。

详细信息

作者简介:
王苗（1985-），女，硕士，助理工程师，从事沉积盆地分析研究工作。E-mail：wangmiaowx.syky@sinopec.com。

中图分类号: TE121.3
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出版历程
- 收稿日期: 2013-05-20
- 修回日期: 2014-01-22
- 刊出日期: 2014-03-28

Controls of synsedimentary faults on sedimentary filling of 1st member of Liushagang Formation in Yongan-Bailian areas in Fushan Sag, Beibuwan Basin

1.
Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, Hubei 430074, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
3. Faculty of Earth Resources, China University of Geosciences, Wuhan, Hubei 430074, China
4. SINOPEC Geophysical Research Institute, Nanjing, Jiangsu 210014, China

摘要

摘要: 以高精度层序地层学、沉积学、构造地质学为指导，对福山凹陷流沙港组一段进行了沉积体系的精细研究以及同沉积断层的综合分析。总结出研究区流沙港组一段主要发育3种沉积体系类型：辫状河三角洲、扇三角洲和湖泊沉积体系，包括9种沉积微相。福山凹陷永安—白莲地区流沙港组一段同沉积断裂可划分为西部伸展调节断裂系、东部走滑调节断裂系和中部变换调节断裂系。中央调节断裂带两侧断层在流沙港组一段的差异性活动，导致地层厚度中心从早期到晚期具有一个自西向东迁移的过程。通过沉积体系时空演化规律分析得出，三角洲砂体展布范围在流沙港组一段也具有明显的自西向东迁移的过程。研究表明，同沉积断层对沉积体系展布具明显的控制性，并提出了3种断层控砂模式。
- 高精度层序地层 /
- 沉积微相 /
- 断裂控砂 /
- 流沙港组一段 /
- 福山凹陷 /
- 北部湾盆地
Abstract: The comprehensive analyses of the sedimentary systems and synsedimentary faults in the 1st member of the Liushagang Formation in the Fushan Sag were made based on high-resolution sequence stratigraphy, sedimentology and structural geology. 3 sedimentary systems were concluded including braided river delta, fan delta and lacustrine sedimentary system. 9 sedimentary microfacies were classified. The synsedimentary systems in the 1st member of the Liushagang Formation in the Yongan-Bailian areas of the Fushan Sag were divided into the western extending accommodation fault system, the eastern strike-slip accommodation fault system and the central transfer fault system. The differential activities of the faults on each side of the central transfer fault system resulted in the migration of formation thickness center, migrating from west to east in the 1st member of the Liusha-gang Formation. The space-time evolution regularities of sedimentary systems indicated that the main delta sand body also migrated from west to east in the 1st member of the Liushagang Formation. The development of synsedimentary faults controlled the distribution of sedimentary systems and 3 controlling patterns were concluded.
- high-resolution sequence stratigraphy /
- sedimentary microfacies /
- fault-controlling sand body /
- 1st member of Liushagang Formation /
- Fushan Sag /
- Beibuwan Basin

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