Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone

Yamin Zhang; Qin Gu

doi:10.1007/s12583-011-0188-3

Volume 22 Issue 3

Jun 2011

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Journal of Earth Science > 2011 > 22(3): 363-370.

Yamin Zhang, Qin Gu. Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone. Journal of Earth Science, 2011, 22(3): 363-370. doi: 10.1007/s12583-011-0188-3

Citation:

Yamin Zhang, Qin Gu. Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone. Journal of Earth Science, 2011, 22(3): 363-370. doi: 10.1007/s12583-011-0188-3

Yamin Zhang, Qin Gu. Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone. Journal of Earth Science, 2011, 22(3): 363-370. doi: 10.1007/s12583-011-0188-3

Citation:

Yamin Zhang, Qin Gu. Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone. Journal of Earth Science, 2011, 22(3): 363-370. doi: 10.1007/s12583-011-0188-3

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Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone

doi: 10.1007/s12583-011-0188-3

Yamin Zhang^{1, 2
,},
Qin Gu³

1.
School of Earth Sciences and Resources Management, Chang'an University, Xi'an 710054, China
2.
Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054, China
3.
Exploration and Development Scientific Research Institute, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China

Funds:

the CNPC Science and Technology Study Financing Project EDR/CN-01-102

More Information

Corresponding author: Yamin Zhang, zym_py@163.com
Received Date: 10 Jan 2010
Accepted Date: 10 May 2010
Publish Date: 01 Jun 2011

Abstract

Abstract

Petroleum system theory has been used to study characteristics of the Fula depression in the Central African fault zone. In this system, deep lacustrine facies mudstone in the Abu Gabra Formation of the Lower Cretaceous is a very good source rock, thick deltaic facies sandstone of the Abu Gabra Formation and fluvial facies sandstone of the Bentiu Formation are good reservoir beds, and the mudstone in the Upper Cretaceous Darfur Group is the regional cap rock. The oil search mode and fault block trap seal-off conditions are considered here for passive rift basins. Particularly with respect to oil source rock distribution, successive development of reverse fault block and faulted anticlinal traps on low relief structures could have accumulated hydrocarbons because of lateral sealing by downthrown mudstone along the up-dipping reservoir beds. At present, discoveries in this system are all large-duty oil fields. In 2009, proved reserves exceeded 2×10⁸ t, and about 3×10⁶ t annual throughput of crude oil was obtained. Risk exploration of the Fula depression is of short cycle and high benefit, which will be of great help for exploration in the Muglad basin.
- half-horst,
- hydrocarbon source rock,
- petroleum system,
- Fula depression,
- Muglad basin

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References

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Petroleum System of the Fula Depression at the Muglad Basin in the Central African Fault Zone

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