南黄海盆地二叠系地震-沉积相分析及烃源岩分布预测

邱尔康; 杨风丽; 张若愚; 周晓峰

doi:10.16562/j.cnki.0256-1492.2018.03.009

南黄海盆地二叠系地震-沉积相分析及烃源岩分布预测

同济大学海洋地质国家重点实验室，同济大学海洋与地球科学学院，上海 200092

基金项目:
国家重点研发计划项目“中新元古代中国古大陆重建与盆地演化及油气远景”(2016YFC0601005)；国家自然科学基金“台湾海峡中-新生代张裂盆地形成机制及油气响应”(41541027)；国家科技重大专项子课题“长江坳陷油气资源潜力评价”(2016ZX05027008)

详细信息

作者简介: 邱尔康(1994—)，男，硕士研究生，构造地质学专业，E-mail：qiuerkang@126.com

通讯作者: 杨风丽(1964—)，女，博士，教授，博士生导师，从事构造与含油气盆地分析方面的研究，E-mail:yangfl@tongji.edu.cn

中图分类号: P744.4

周立君编辑

收稿日期: 2017-07-12

修回日期: 2017-11-24

刊出日期: 2018-06-28

Seismic and sedimentary facies analysis and prediction of favorable Permian source rocks in the South Yellow Sea basin

State Key Laboratory of Marine Geology (Tongji University), School of Ocean and Earth Science, Tongji University, Shanghai 200092, China

More Information

Corresponding author: YANG Fengli, yangfl@tongji.edu.cn

Received Date: 12 July 2017

Revised Date: 24 November 2017

Publish Date: 28 June 2018

摘要

摘要:
二叠系烃源岩是南黄海盆地多套优质烃源岩之一，多年来，由于地震测线少和品质差，导致对其分布一直认识不清。基于南黄海盆地近年来新采集处理的大量二维地震测线，结合老地震测线和5口钻遇二叠系的钻测井资料，通过单井相分析、地震-沉积相分析，开展了对南黄海下二叠统、上二叠统的沉积相及有利烃源岩分布预测研究。分析表明：下二叠统栖霞组沉积时期，青岛坳陷及崂山隆起西部以台地相为主、中东部以盆地相发育为主；上二叠统龙潭组沉积时期，青岛坳陷南部和勿南沙隆起以三角洲平原相、崂山隆起和青岛坳陷西部以三角洲前缘沉积相、青岛坳陷东北部及崂山隆起东部以滨浅海沉积相发育为主。结合有利烃源岩沉积相和残留地层厚度分析，认为崂山隆起中部及青岛坳陷东北部是下二叠统烃源岩有利分布区，崂山隆起中东部及青岛坳陷东北部是上二叠统烃源岩有利分布区。
- 地震相 /
- 沉积相 /
- 烃源岩 /
- 二叠系 /
- 南黄海盆地
Abstract:
The Permian source rock is one of the high-quality hydrocarbon source rocks in the South Yellow Sea basin. However, the seismic data available is so poor in quality that the distribution pattern of Permian source rocks is not clear. Based on the recently acquired and processed seismic data, integrated with old seismic data and well log datafrom the basin, by means of single well facies and seismic-sedimentary facies analysis, we discerned the distribution pattern of sedimentary facies and favorable source rocks of early and late Permian. It is revealed that duringthe period of early Permian, the western part ofLaoshan uplift and the western part of Qingdao depressionare both dominated byplatformfacies, while the eastern part of Laoshan uplift and the eastern part of Qingdao depression dominated by basin facies. During late Permian, however, the western part of Laoshan uplift and the northwestern part of Qingdao depression are covered by deltaic front facies, and the southern part of Qingdao depression by delta plain facies, whereas the northeastern part of Qingdao depression and the eastern part of Laoshan uplift are occupied by littoral-shallow facies. Combining the favorable sedimentary facies together with the residual stratigraphic thickness, we suggest thatthe middle part of the Laoshan uplift and the northeastern part of the Qingdao depression bethe favorable source rocks distribution area of lower Permian; the mid-eastern part of the Laoshan uplift and the northeastern part of the Qingdao depression be favorable source rocks distribution area of upper Permian.
- seismic facies /
- sedimentary facies /
- source rock /
- Permian /
- South Yellow Sea basin

HTML全文

图 1 南黄海构造单元划分及地震测线、二叠系钻井分布图

Figure 1.

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图 2 南黄海盆地上古生界地层层序划分柱状图(据文献[22]修改)

Figure 2.

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图 3 南黄海WX5-ST1井震标定

Figure 3.

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图 4 A-A’剖面地震-沉积相图

Figure 4.

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图 5 B-B’测线地震-沉积相图

Figure 5.

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图 6 南黄海二叠系地震相平面展布图

Figure 6.

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图 7 无锡5-ST1井二叠系沉积相图

Figure 7.

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图 8 CSDP-2井二叠系沉积相图

Figure 8.

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图 9 无锡13-3-1井二叠系沉积相

Figure 9.

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图 10 南黄海二叠系沉积相平面展布

Figure 10.

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图 11 南黄海二叠系烃源岩有利分布区预测

Figure 11.

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表 1 南黄海二叠系地震相类型划分

Table 1. Seismic facies types of the Permian in South Yellow Sea

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表 2 南黄海地区二叠系典型沉积相地震反射特征

Table 2. Seismic reflection characteristics of typical sedimentary facies of Permian in South Yellow Sea area

碳酸盐岩沉积体系	浅-深水陆棚相	极弱反射、高频低振幅低连续、高频中振幅中连续
	台地相	低频中振幅中连续、高频中振幅高连续、高频中振幅中连续、高频高振幅低连续、中频高振幅中连续、中频中振幅中连续、极弱反射
	台地边缘相	高频中振幅低连续、高频高振幅低连续
	盆地	高频中振幅中连续、高频中振幅高连续
碎屑岩沉积体系	三角洲平原	高频中振幅低连续、高频高振幅低连续
	三角洲前缘	高频高振幅中连续、高频中振幅高连续、中频中振幅中连续、中频高振幅中连续
	滨浅海	极弱反射、高频中振幅低连续、高频中振幅中连续

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