PETROLEUM ACCUMULATION CHARACTERISTICS AND PRESERVATION CONDITIONS OF LIANYUAN SAG IN THE CENTRAL HUNAN

ZHOU Xiao-kang; GUO Jian-hua

Volume 20 Issue 3

Sep. 2014

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ZHOU Xiao-kang, GUO Jian-hua, 2014. PETROLEUM ACCUMULATION CHARACTERISTICS AND PRESERVATION CONDITIONS OF LIANYUAN SAG IN THE CENTRAL HUNAN. Journal of Geomechanics, 20 (3): 222-229.

Citation:

ZHOU Xiao-kang, GUO Jian-hua, 2014. PETROLEUM ACCUMULATION CHARACTERISTICS AND PRESERVATION CONDITIONS OF LIANYUAN SAG IN THE CENTRAL HUNAN. Journal of Geomechanics, 20 (3): 222-229.

Citation:

ZHOU Xiao-kang, GUO Jian-hua, 2014. PETROLEUM ACCUMULATION CHARACTERISTICS AND PRESERVATION CONDITIONS OF LIANYUAN SAG IN THE CENTRAL HUNAN. Journal of Geomechanics, 20 (3): 222-229.

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PETROLEUM ACCUMULATION CHARACTERISTICS AND PRESERVATION CONDITIONS OF LIANYUAN SAG IN THE CENTRAL HUNAN

ZHOU Xiao-kang^1
,,
GUO Jian-hua²

1.
Shenzhen Branch of CNOOC Ltd., Guangzhou 510240, China
2.
School of Geosciences and Environmental Engineering, Central South University, Changsha 410083, China

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Received: 2014-04-29
Published: 2014-09-01

Abstract

Abstract

Based on the analysis of asphalts and inclusions in Lianyuan sag of Central Hunan, a study on the accumulation periods, destruction and transformation of oil and gas reservoirs has been researched. The result shows that the oil and gas charging occurred during pre-Indo-China movement, with earlier Indo-China movement and later Indo-China movement two times charging naturally. Indo-China Stage was not only high-matured gas time but also structural traps formed time, while Yanshan Stage played a destructive and transformative role on earlier traps and reservoirs. Four destruction, transformation and preservation models of reservoir are proposed, such as original reservoirs without destruction, original reservoirs with little destruction, original reservoirs with serious destruction, and original reservoirs with total destruction. Finally, it comes to a conclusion that three tectonic zones of Lianyuan sag have different preserving conditions, from west to east, the conditions become better and better.
- Lianyuan sag,
- preserve condition,
- destroying method of reservoirs

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References(9)

References

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