CHARACTERISTICS OF THE PALEO-STRESS IN THE SOUTHWESTERN MARGIN OF XUEFENG UPLIFT AND ITS SIGNIFICANCE FOR PETROLEUM GEOLOGY

CUI Min; TANG Liang-jie; WANG Peng-hao; GUO Tong-lou; LU Xing-bin

2009 Vol. 15, No. 3

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CUI Min, TANG Liang-jie, WANG Peng-hao, GUO Tong-lou, LU Xing-bin. CHARACTERISTICS OF THE PALEO-STRESS IN THE SOUTHWESTERN MARGIN OF XUEFENG UPLIFT AND ITS SIGNIFICANCE FOR PETROLEUM GEOLOGY[J]. Journal of Geomechanics, 2009, 15(3): 289-295.

Citation:

CHARACTERISTICS OF THE PALEO-STRESS IN THE SOUTHWESTERN MARGIN OF XUEFENG UPLIFT AND ITS SIGNIFICANCE FOR PETROLEUM GEOLOGY

1.
Basin & Reservoir Research Center, China University of Petroleum, Beijing 102249, China
2.
State Key Laboratory for Petroleum Resource and Prospecting, Beijing 102249, China
3.
Southern Exploration Division Company, SINOPEC, Chengdu 610041, China
4.
Dezhou College Technical Secondary School, Dezhou 253023, China

Received Date: 29 March 2009

Publish Date: 25 September 2009

Abstract

Abstract

Based on the geological survey, balanced cross-section analysis and regional tectonic evolution, we take advantage of rock acoustic emission information to restore the maximum paleo-stress in the southwest margin of Xuefeng Uplift, and discuss the relationship between the maximum paleo-stress and hydrocarbon accumulation and damage. The results show that the study area has undergone five key structural reforms of different intensities. In the early Paleozoic and Indosinian cycle, the tectonic movement is weak, and the maximum paleo-stress are 13.3 MPa and 24 MPa respectively, equivalent to the main accumulation period of Majiang ancient reservoir. The high-frequency and high-intensity paleostress correspond to accumulation and damage of Majiang ancient reservoir. The Neopaleozoic structural deformation with the maximum paleo-stress of 92.6 MPa represents the formation of the reservoir. The Yanshan and Himalayan structural movements, with the restored paleo-stress from 23.3 MPa to 74.4 MPa, cover the period of extensive destruction of paleo-reservoir.
- acoustic emission /
- paleo-stress /
- Majiang paleo-reservoir /
- petroleum geology /
- Xuefeng Uplift

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References

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