松辽盆地三肇凹陷扶余油层天然气扩散量及其地质意义

傅广; 姜振学

doi:10.11743/ogg19940110

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松辽盆地三肇凹陷扶余油层天然气扩散量及其地质意义
GAS DIFFISIVE FLUX OF FUYU OIL LAYER IN SANZHAO DEPRESSION OF SONGLIAO BASIN AND ITS GEOLOGICAL SIGNIFICANCE
1994年15卷第1期页码：94-99
网络首发：1994-03-25，

纸质出版：1994
DOI： 10.11743/ogg19940110
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傅广, 姜振学. 松辽盆地三肇凹陷扶余油层天然气扩散量及其地质意义[J]. 石油与天然气地质, 1994,15(1):94-99. DOI： 10.11743/ogg19940110.

Fu Guang, Jiang Zhenxue. GAS DIFFISIVE FLUX OF FUYU OIL LAYER IN SANZHAO DEPRESSION OF SONGLIAO BASIN AND ITS GEOLOGICAL SIGNIFICANCE[J]. 1994, 15(1): 94-99. DOI： 10.11743/ogg19940110.

摘要

在地史恢复的基础上

利用费克第一定律对三肇凹陷扶余油层天然气扩散量进行了计算

结果表明其天然气扩散量占其气源岩总生气量的27.39%

充分证实了扩散作用是天然气远景评价中不可忽视的重要因素.

Abstract

Sanzhao Depression is an important oil and gas exploration region in Songliao Basin and Fuyu oil layer is the main gas productive layer. Based on the Fick First Law

the total gas diffusive flux of Fuyu layer in the depression is calculated through geological resumption of natural gas difusion coefficient and etc. The result indicates that the gas diffusive flux of Fuyu oil layer in Sanzhao Depression is 27. 39% of the total gas generation amount of the source rocks. Fuyu oil layer must get much more gas amout than 27. 39 %of gas generation amount from the source rocks

and has surplus gas to form gas pools

otherwise the gas of the layer would be completely lost and no gas deposit could be found.Therefore

it has been demonstrated that the action of gas diffusion is an important factor that can not be neglected in natural gas reserve evaluation.