辽东湾地区孔隙演化的机理

蒋恕; 蔡东升; 朱筱敏; 朱光辉; 胡孝林

Volume 32 Issue 3

May 2007

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Article Navigation > Earth Science > 2007 > 32(3): 366-372

JIANG Shu, CAI Dong-sheng, ZHU Xiao-min, ZHU Guang-hui, HU Xiao-lin, 2007. Mechanism of the Pore Evolution in Liaodong Bay Area. Earth Science, 32(3): 366-372.

Citation:

JIANG Shu, CAI Dong-sheng, ZHU Xiao-min, ZHU Guang-hui, HU Xiao-lin, 2007. Mechanism of the Pore Evolution in Liaodong Bay Area. Earth Science, 32(3): 366-372.

JIANG Shu, CAI Dong-sheng, ZHU Xiao-min, ZHU Guang-hui, HU Xiao-lin, 2007. Mechanism of the Pore Evolution in Liaodong Bay Area. Earth Science, 32(3): 366-372.

Citation:

JIANG Shu, CAI Dong-sheng, ZHU Xiao-min, ZHU Guang-hui, HU Xiao-lin, 2007. Mechanism of the Pore Evolution in Liaodong Bay Area. Earth Science, 32(3): 366-372.

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Mechanism of the Pore Evolution in Liaodong Bay Area

1.
CNOOC Research, Beijing 100027, China
2.
Faculty of Natural Resources and Information Technology, China University of Petroleum, Beijing 102249, China
3.
CNOOC China Ltd. Zhanjiang Branch, Zhanjiang 524057, China

Received Date: 2006-09-26
Publish Date: 2007-05-25

Abstract

Abstract

The mechanism of pore evolution is significant to the research of deeper reservoir controlling factors, predicting the favorable reservoir and subtle reservoirs exploration in middle-deep strata.The pore evolution analysis of Liaozhong sag, Liaoxi uplift and Liaoxi sag in Liaodong Bay area were analyzed, which indicates that there are four similar secondary pore zones during the whole porosity reduction current background in different sags and uplifts.The only difference is that the depth of secondary pore development in sag is deeper than that in the uplift, and the secondary pore zone is related to the diagenesis, organic evolution, clay mineral evolution, overpressure and early oil and gas injection.This paper discusses the mechanism of the porosity loss and the secondary pores development, and the emphasis is placed on the analysis of the relation among the pore evolution, diagenesis, organic evolution, clay mineral evolution, early oil and gas injection and overpressure.On the basis of the discussion, it is pointed out that the formation of the four sencondary pore development zones is due to the dissolution of the carbonate cement, feldspar and the clastic debris by the organic acid, and the protection from the overpressure and the early oil and gas injection.
- Liaodong Bay area,
- pore evolution,
- secondary pore,
- evolution mechanism,
- diagenesis,
- organic evolution,
- early oil and gas injection,
- overpressure

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References(35)

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