贝尔凹陷南屯组物源特征及其对沉积体系的控制
- 1. 东北石油大学地球科学学院, 黑龙江大庆 163318;
- 2. 大庆油田有限责任公司勘探开发研究院, 黑龙江大庆 163712;
- 3. 中国石油天然气股份有限公司塔里木油田分公司勘探开发研究院, 新疆库尔勒 841000
基金项目:
国家科技重大专项（2016E-0202）；东北石油大学研究生培养创新基地创新科研项目（YJSJD2016-001NEPU）
作者简介:
李跃,男,1990年出生,博士,层序地层与油气勘探,E-mail:418828568@qq.com
- 收稿日期:
2017-05-05
- 修回日期:
2017-08-31
- 刊出日期:
2018-08-10
摘要: 精细刻画古物源环境对恢复沉积体系、寻找优势砂岩发育带和预测勘探目标区等具有重要意义。综合运用古地貌、地震属性、重矿物以及砂地比等方面的资料，由不同角度、分不同层次对贝尔凹陷南屯组沉积时期的物源体系进行精细的分析和刻画。结果表明：贝尔凹陷南屯组沉积时期的物源主要来自凹陷四周的斜坡带以及盆内的低凸起，由盆地四周向中心汇聚，其中南一段与南二段沉积时期的主要物源方向具有明显的继承性。在贝尔凹陷南屯组共识别出9大物源体系，主要发育有扇三角洲、湖底扇等沉积环境，并根据物源区的发育位置、构造样式及构造活动的差异等，将研究区物源分为陡坡断坡型、陡坡同向断阶型、缓坡同向断阶型、缓坡反向断阶型、箕状洼槽型和双断长轴入湖型等6种类型。总之，物源与坡折、沟谷所组成的耦合系统从根本上影响和决定了沉积体系的类型和展布规律。
The Characteristics of Provenance System and Their Control on Sedimentary System of Nantun Formation in the Beier Depression, Northern China
- 1. School of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China;
- 2. Exploration and Development Research Institute, Daqing Oilfield CompanyLimited, Daqing, Heilongjiang 163712, China;
- 3. Exploration and Development Research Institute, Talimu Oilfield Company Limited, Korla, Xinjiang 841000, China
Funds:
National Science and Technology Major Project,No.2016E-0202; Northeast Petroleum University Graduate Student Innovative Base Project,No.YJSJD2016-001NEPU
- Received Date:
2017-05-05
- Rev Recd Date:
2017-08-31
- Publish Date:
2018-08-10
Abstract: To do a fine description of paleo-provenance system has great significance for the restoration of sedimentary system, searching for dominant sandstone zone and also prediction of target area. In this study, various data including ancient landform, seismic attribute, heavy minerals, sand ratio of formation and other aspects of information were used to do a fine description and research for the provenance system of Nantun Formation in the Beier depression from different aspects and various levels. The results showed that the source was mainly from the surrounding slope zones and low uplitting regions in the basin, which converged from the edge to the basin center during the Nantun Period in the Beier depression. The main source direction of the two Nantun sub-groups had obvious inheritance. Nine provenance systems in the Beier depression can be defined as mainly developed from the sedimentary environment of fan delta, sub-lacustrine fan and so on. According to the differences in developing locations, construction styles and tectonic activity, six types of materials provenace can be divided as step slope-fracture slope. All above research showed that the coupling system composed of the source and the slope and the gully can fundamentally control and determine the types of sedimentary system and their spreading regularity.
李跃, 蒙启安, 李军辉, 王琦, 邹越, 娄洪. 贝尔凹陷南屯组物源特征及其对沉积体系的控制[J]. 沉积学报, 2018, 36(4): 756-767. doi: 10.14027/j.issn.1000-0550.2018.050
LI Yue, MENG QiAn, LI JunHui, WANG Qi, ZOU Yue, LOU Hong. The Characteristics of Provenance System and Their Control on Sedimentary System of Nantun Formation in the Beier Depression, Northern China[J]. Acta Sedimentologica Sinica, 2018, 36(4): 756-767. doi: 10.14027/j.issn.1000-0550.2018.050
| Citation: |
LI Yue, MENG QiAn, LI JunHui, WANG Qi, ZOU Yue, LOU Hong. The Characteristics of Provenance System and Their Control on Sedimentary System of Nantun Formation in the Beier Depression, Northern China[J]. Acta Sedimentologica Sinica, 2018, 36(4): 756-767. doi: 10.14027/j.issn.1000-0550.2018.050
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