冀中坳陷宝坻—桐柏镇变换带形成机制与油气意义

周从安; 赵利; 孙钰皓; 李小冬; 刘海剑

doi:10.12090/j.issn.1006-6616.2018.24.03.031

冀中坳陷宝坻—桐柏镇变换带形成机制与油气意义

doi: 10.12090/j.issn.1006-6616.2018.24.03.031

周从安^1,,
赵利^{2, 3, ,},
孙钰皓³,
李小冬¹,
刘海剑³

1.
中国石油华北油田分公司地球物理勘探研究院, 河北任丘 062552
2.
山东农业大学资源与环境学院, 山东泰安 271018
3.
中国石油大学(华东)地球科学与技术学院, 山东青岛 266580

基金项目:

中国石油天然气股份有限公司科技项目 2014E-35

详细信息

作者简介:
周从安(1965-), 男, 高级工程师, 物探专业。E-mail:boyaa@126.com

通讯作者:
赵利(1988-), 男, 讲师, 地质学专业。E-mail:orchidy@126.com

中图分类号: P618.130.2
计量
- 文章访问数: 243
- HTML全文浏览量: 140
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2017-06-26
- 修回日期: 2018-02-23
- 刊出日期: 2018-06-01

THE FORMING MECHANISM OF THE BAODI-TONGBAIZHEN TRANSFER ZONE IN THE JIZHONG DEPRESSION AND ITS OIL-GAS BEARING

ZHOU Congan^1
,,
ZHAO Li^{2, 3
, ,},
SUN Yuhao³,
LI Xiaodong¹,
LIU Haijian³

1.
Geophysical Exploration Institute of Huabei Oilfield Company, PetroChina, Renqiu 062552, Hebei, China
2.
College of Resources and Environment, Shandong Agriculture University, Tai'an 271018, Shandong, China
3.
School of Geosciences, China University of Petroleum(East China), Qingdao 266580, Shandong, China

摘要

摘要: 借助三维地震数据体资料，通过构造剖面解释、断层落差计算、平衡剖面构造演化史分析，以及变换带类型的划分，对冀中坳陷宝坻-桐柏镇变换带形成机制进行研究。结果表明：宝坻-桐柏镇变换带属于同向传递型，内部构造样式为地垒和变换断层，而琥珀营断层、杨税务断层等对其起反向调节作用；沙四期变换带南北两侧伸展差异最大，沙三期强烈活动并构造定型，沙二-沙一时期继承性发育并迅速减弱，东营期活动再次变强，之后衰亡，构造活动呈现出阶段式减弱的趋势。结合区域构造分析表明，宝坻-桐桐柏镇变换带为调节大厂-武清凹陷与廊固凹陷伸展差异的构造，构造变形与边界断层活动具有时空匹配性。最新油气勘探研究表明，变换带两侧的强、弱构造域分别发育烃源岩和圈闭，而变换断层则沟通源储，故该区域是油气勘探的有利指向区。
- 变换带 /
- 伸展差异 /
- 形成机制 /
- 宝坻—桐柏镇 /
- 冀中坳陷
Abstract: Based on the 3D seismic data, through structural section interpretation, fault throw calculation, structural evolution analysis of balanced section and classification of transfer zone types, the formation mechanism of the Baodi-Tongbaizhen transfer zone in the Jizhong Depression is studied in this article. The results indicate that:the Baodi-Tongbaizhen transfer zone is classified as synthetic collinear-type with horst and transfer fault as the main internal structural styles, while the Hupoying fault and the Yangshuiwu fault provide the conjugate accommodation. The Baodi-Tongbaizhen transfer zone acted intensively in Es4 because of the maximum differential extension, and its active intensity decreased gradually in Es3-Es1. However, the transfer zone fell into weakening again in N-Q after strong reaction in Ed. Hydrocarbon source rocks and traps developed respectively in the strong and weak structural regions on the two sides of the transfer zone, and the transfer faults connected with source reservoirs, which makes the area a favorable oriented region for oil and gas exploration.
- transfer zone /
- differential extension /
- formation mechanism /
- Baodi-Tongbaizhen /
- the Jizhong Depression

HTML全文

图 1 宝坻桐柏镇变换带中生界底面发育的断裂

F₁—大厂—大兴断层；F₂—宝坻—桐柏镇断层；F₃—河西务断层；F₄—杨税务断层；F₅—琥珀营断层；F₆—旧州断层；F₇—永清断层

Figure 1. Faults developed at Mesozoic bottom in the Baodi-Tongbaizhen transfer zone

下载: 全尺寸图片幻灯片

图 2 宝坻—桐柏镇变换带模式

F₁—大厂—大兴断层；F₂—宝坻—桐柏镇断层；F₃—河西务断层；F₄—杨税务断层；F₅—琥珀营断层；F₆—旧州断层
a—断裂平面展布图；b—变换带三维模式图；c—地震剖面解释图

Figure 2. The pattern of the Bodi-Dongbaizhen transfer zone

下载: 全尺寸图片幻灯片

图 3 变换带内主要断层落差(数据采样点见图 1)

Figure 3. Major faults throws in the transfer zone

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图 4 Ⅱ—Ⅱ′、Ⅲ—Ⅲ′和Ⅳ—Ⅳ′测线平衡剖面的伸展量、伸展率和伸展速率

Figure 4. The extensional amounts, rates and velocities of balanced sections in Ⅱ-Ⅱ′、Ⅲ-Ⅲ′ and Ⅳ-Ⅳ′

下载: 全尺寸图片幻灯片

图 5 研究区主测线剖面构造演化

Figure 5. The structural evolution of crossline sections

下载: 全尺寸图片幻灯片

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