About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
2010. The American Association of Petroleum Geologists. All rights reserved.
DOI:10.1306/12090909002
Petroleum secondary
migration
and
accumulation
in the central Junggar Basin, northwest China: Insights from basin modeling




Qilin Xiao,1 Sheng He,2 Zhi Yang,3 Zhiliang He,4 Wang Furong,5 Shuifu Li,6 Daqing Tang7
1Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China, China University of Geosciences, Wuhan 430074, China; and State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(CAS), Guangzhou 510640, China; qilinxiao@cug.edu.cn
2Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China, China University of Geosciences, Wuhan 430074, China; shenghe@cug.edu.cn
3Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China; petroyangzhi@yahoo.com.cn
4Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing 100083, China; hezl@pepris.com
5Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China, China University of Geosciences, Wuhan 430074, China; wfr777@163.com
6Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China, China University of Geosciences, Wuhan 430074, China; lishf@cug.edu.cn
7Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China, China University of Geosciences, Wuhan 430074, China; tangdaqingcug@tom.com
ABSTRACT
The timing of petroleum generation, migration
, and
accumulation
in the central Junggar Basin has been evaluated using basin modeling technology to decipher the processes of petroleum secondary
migration
and
accumulation
in the Jurassic carrier beds during the Yanshan and Himalayan orogenies. During the early Yanshan orogeny (J2–J3), crude oils, sourced mainly from the Permian source rocks, migrated laterally from depocenters to adjacent structural high points. During the late Yanshan orogeny (Cretaceous–Eocene), the
hydrocarbon
secondary
migration
pattern changed significantly. Specifically, in the Cretaceous, a large-scale regional second phase of generation and
migration
occurred in the western part of the central Junggar Basin; in the eastern part of the central Junggar Basin, crude oils emplaced in the depressions migrated mainly to the eastern uplifts. In the early Tertiary, oils in the source kitchens generally began migrating to the north and mixed with the Jurassic-generated hydrocarbons. During the Himalayan orogeny (Neogene–Quaternary), this
migration
was strengthened continually. The modeled results agree with
migration
-associated geochemical information of the Jurassic accumulations. Integration of the regional geological setting and some petroleum geology data suggest that the Jurassic tectonic high points and facies-change- and unconformity-associated subtle traps are of crucial importance for current oil exploration. Both overpressured bodies in the Triassic and Permian systems and volcanic rock reservoirs of the Carboniferous basement in the uplifts have important implications for future natural oil and gas exploration. This work should help reduce exploration risk in this region.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |
AAPG Member?
Please login with your Member username and password.
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at members@aapg.org.