摘要
基于印支-燕山期复杂构造及其叠合过程对深层油气勘探和华北克拉通破坏研究的重要性,以黄骅坳陷为研究对象,综合利用三维地震、岩心、薄片和火山岩测年资料,明确了黄骅坳陷印支-燕山期盆地构造、演化过程及其伴生的火山岩特征,认为印支-燕山期黄骅坳陷经历了多方向挤压向伸展转换的叠合演化过程,提出深层油气勘探2个优势区带.研究结果表明:1)挤压构造样式发育于印支期晚期、燕山早期及燕山晚期;走滑构造样式形成于燕山期;伸展构造样式及伴生火山活动(133 Ma到114.8±2.8 Ma)集中于燕山中期.2)盆地演化经历了印支期(T3)近SN向挤压逆冲,逆冲断裂平均活动速率为-24.4 m/Ma;燕山早期(J1+2)中北区近SN向、南区NW向多向挤压逆冲,近EW向和NE向逆冲断层平均活动速率分别为-7.6 m/Ma和-11 m/Ma;燕山中期(K1)NW-SE向张扭性负反转,断层平均活动速率为22.8 m/Ma;和燕山晚期(K2)区域挤压抬升4个演化阶段.3)与周边地区对比,印支期黄骅坳陷发育近EW向大型背斜,济阳坳陷发育NW向逆断层;燕山早期黄骅坳陷发育NE向逆冲断层,与燕山褶皱带类似;燕山中期,黄骅坳陷发育NE伸展断层,济阳坳陷发育NW向伸展断层.中、北区"新生-古储型"油气区和南区"古生-古储型"油气区为深层油气勘探的2个优势区带.
The exploration of the deep petroleum and the breakup of the North China Craton are significantly influenced by the multi-stage tectonic evolution during Indosinian-Yanshanian period. Based on the 3-D seismic data, drilling core data, thin sections, and volcanic rock dating data, this paper investigated the structure, tectonic evolution and the volcanic activities of the Huanghua depression and proposed two types of source-reservoir arrangement. The results show that: 1) The compressional structure developed during the Late Indosinian, the Early Yanshanian, and the Late Yanshanian;the strike-slip structure developed during the Yanshanian;the extensional structure and the associated volcanic activities(133 Ma to 114.8±2.8 Ma) developed during the Middle Yanshanian. 2) The tectonic evolution of this depression experienced four stages: the SN-direction thrusting stage during the Late Indosinian(T3),with the average thrust faults activity rate of-24.4 m/Ma;the compression stage during the Early Yanshanian(J1+2), including SN-direction compression in middle and northern region and NW-SE-direction compression in the southern region, with average activity rates of-7.6 m/Ma and-11 m/Ma, respectively;the NW-SE-direction transitional stage from compression to extension during the Middle Yanshanian(K1), with the average activity rate of 22.8 m/Ma;the regional uplifting stage during the Late Yanshanian(K2). 3) Compared to adjacent areas, the Huanghua depression developed EW-striking anticline, whereas the Jiyang depression developed NW-striking thrusting faults during the Late Indosinian;the Huanghua depression developed NE-striking thrusting faults during the Early Yanshanian, similar to the Yanshan fold belt;the Huanghua depression developed NE-striking extensional faults during the Middle Yanshanian, while the Jiyang depression developed NW-striking extensional faults. Two types of source-reservoir arrangement were identified as advantage arrangements during deep petroleum exploration, including the "Cenozoic source and Paleozoic reservoir" arrangement in the middle and northern region of the study area and "Paleozoic source and Paleozoic reservoir" arrangement in the southern region of the study area.
作者
张飞鹏
吴智平
李伟
朱吉昌
付立新
李宏军
楼达
赵勇刚
ZHANG Feipeng;WU Zhiping;LI Wei;ZHU Jichang;FU Lixin;LI Hongjun;LOU Da;ZHAO Yonggang(School of Geosciences, China University of Petroleum (East China), Qingdao, Shan dong 266580, China;Institute of Geology and Geophysics? Beijing 100029,China;PetroChina Dagang Oilfield Company, Tianjin 300280, China)
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2019年第4期842-857,共16页
Journal of China University of Mining & Technology
基金
国家科技重大专项(2016ZX05006-007)
关键词
构造特征
盆地演化
印支-燕山期
黄骅坳陷
华北克拉通
structural characteristics
basin evolution
Indosinian-Yanshanian
Huanghua depression
North China Craton
