恩平凹陷南部隆起带油气成藏模式

谢飞; 吴智平; 颜世永; 何敏; 宋佳

恩平凹陷南部隆起带油气成藏模式

1.
中国石油大学(华东)地球科学与技术学院, 山东青岛 266580
2.
中海石油(中国)有限公司深圳分公司, 广州 510000

基金项目:

中海石油(中国)有限公司重大科技攻关项目"珠一坳陷浅层油气富集规律研究" YXKY-2012-SZ-01

详细信息

作者简介:
谢飞(1991-), 男, 山东东营人, 硕士研究生, 主要从事断裂控藏方面的研究。E-mail:xiefei0124@163.com

中图分类号: TE122.3
计量
- 文章访问数: 130
- HTML全文浏览量: 61
- PDF下载量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2015-06-15
- 刊出日期: 2015-12-28

RESERVOIR-FORMING PATTERN OF THE SOUTH UPLIFT IN ENPING SAG

1.
School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China
2.
Shenzhen Brach of CNOOC Ltd., Guangzhou 510000, China

摘要

摘要: 南部隆起带是恩平凹陷的主要成藏带。利用基础资料, 系统分析了南部隆起带油气成藏的条件与特征, 总结了南部隆起带油气成藏的模式。恩平凹陷南部隆起带油气主要来自北侧EP17洼始新统文昌组中深湖相烃源岩, 南部隆起带之下缺失文昌组沉积, 存在油气的有利仓储区, 油气通过沟通有利仓储区的断裂运移, 主要有仓上-上盘诱导裂缝带垂向输导-连通砂体侧向输导-滑动破碎带侧向封堵-断块油气藏、仓上-上盘诱导裂缝带垂向输导-连通砂体侧向输导-它源自圈背斜油气藏以及仓上-下盘诱导裂缝带垂向输导-连通砂体侧向输导-滑动破碎带侧向封堵-断鼻油气藏3种成藏模式。
- 恩平凹陷南部隆起带 /
- 成藏条件 /
- 有利仓储区 /
- 成藏模式
Abstract: The south uplift is the main hydrocarbon accumulation-forming zone of Enping sag. Using the basic data, we analyzed the conditions and characteristics of hydrocarbon accumulation in the south uplift and summarized the pattern of hydrocarbon accumulation. Hydrocarbon in the south uplift of Enping sag is mainly generated from the deep lacustrine source rock in Eocene Wenchang formation in the north EP17 sag. Although the south uplift lacks Wenchang formation deposits, there exists hydrocarbon favorable storage area. Hydrocarbon migrates mainly along the fractures which connect the favorable storage area. There are three patterns of hydrocarbon accumulation model:vertical migration along induced fracture zone of upper storage area and hanging wall, lateral migration along connected sand bodies, lateral sealing by gliding fracture zone, fault block reservoir; vertical migration along induced fracture zone of upper storage area and hanging wall, lateral migration along connected sand bodies, anticline reservoir trapped from other sources; vertical migration along induced fracture zone of upper storage area and footwall, lateral migration along connected sand bodies, lateral sealing by gliding fracture zone, fault nose reservoir.
- the south uplift in Enping sag /
- accumulation condition /
- favorable storage area /
- reservoir-forming pattern

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图 1 恩平凹陷位置及构造单元划分

Figure 1. Position and tectonic unit division of Enping sag

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图 2 恩平凹陷生烃洼陷划分

Figure 2. Hydrocarbon generation division of Enping sag

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图 3 M断层断面形态

Figure 3. Fracture surface morphology of M fault

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图 4 恩平凹陷T70油气充注点

Figure 4. Hydrocarbon charging points of T70 in Enping sag

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图 5 恩平凹陷恩平组流体势

Figure 5. Fluid potential of Enping formation in Enping sag

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图 6 恩平凹陷逾渗阈值的确定

Figure 6. The ascertainment of percolation threshold in Enping sag

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图 7 恩平凹陷恩平组砂体连通概率图

Figure 7. The sandbody connecting probability of Enping formation in Enping sag

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图 8 恩平凹陷恩平组有利仓储区分布

Figure 8. The distribution of favorable storage area of Enping formation in Enping sag

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图 9 恩平凹陷南部隆起带油气运聚模式

Figure 9. The hydrocarbon accumulation model in the south uplift of Enping sag

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