松辽盆地十屋断陷异常低压体系及其成因机制

解习农; 焦赳赳; 熊海河

Volume 28 Issue 1

Jan. 2003

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JIE Xi-nong, JIAO Jiu-jiu, XIONG Hai-he, 2003. Underpressure System and Forming Mechanism in the Shiwu Depression of Songliao Basin. Earth Science, 28(1): 61-66.

Citation:

JIE Xi-nong, JIAO Jiu-jiu, XIONG Hai-he, 2003. Underpressure System and Forming Mechanism in the Shiwu Depression of Songliao Basin. Earth Science, 28(1): 61-66.

JIE Xi-nong, JIAO Jiu-jiu, XIONG Hai-he, 2003. Underpressure System and Forming Mechanism in the Shiwu Depression of Songliao Basin. Earth Science, 28(1): 61-66.

Citation:

JIE Xi-nong, JIAO Jiu-jiu, XIONG Hai-he, 2003. Underpressure System and Forming Mechanism in the Shiwu Depression of Songliao Basin. Earth Science, 28(1): 61-66.

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Underpressure System and Forming Mechanism in the Shiwu Depression of Songliao Basin

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Department of Earth Science, University of Hong Kong, Hong Kong, China
3.
Northeast Petroleum Bureau of Xinxing Petroleum Corporation, Changchun 130062, China

Received Date: 2002-04-25
Publish Date: 2003-01-25

Abstract

Abstract

Underpressure system developed in the Shiwu depression of Songliao basin with measured formation pressure gradient ranging between 0.005 MPa/m to 0.008 MPa/m. This research result shows that the genetic mechanism of abnormal low pressure attributes to reduction of paleothermal gradients, uplift and erosion during Eocene period. Moreover, gas diffusions also affect the formation of underpressure system at local part. This system at present indicates the evolution process from overpressure to underpressure, which controls fluid flow and hydrocarbon migration in different stages of the depression. Hence, oil pools generating at early stage occur at the basin margin, and gas pools generating at late stage at central part of the Shiwu depression, Songliao basin.
- underpressure system,
- Shiwu depression,
- Songliao basin

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References(22)

References

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