Calculating Oil Saturation of In-Situ Combustion by Thermogravimetric Analysis

Xinjiang Petroleum Geology ›› 2009, Vol. 30 ›› Issue (6): 714-716.

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Calculating Oil Saturation of In-Situ Combustion by Thermogravimetric Analysis

MA De-sheng^1,2, GUAN Wen-long², ZHANG Xia-lin², LI Chun-tao³, HAN Jing²

1. Faculty of Resources, China University of Geosciences, Wuhan, Hubei 430074, China;
2. Institute of Heavy Oil Thermal Recovery,Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
3. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China

Received:2009-04-17 Revised:2009-06-18 Published:2020-10-23

Abstract

Abstract: By the thermogravimetric analysis (TGA) of water-bearing heavy oil and water free heavy oil, a method for calculating oil saturation and water saturation is presented using TGA curves of mixed samples with micro oil, water and sand. The calculating formula is derived and the trans-error is analyzed. The result shows that the accuracy of this method can reach three significant figures. The method is applied to the 3-D in-situ combustion physical model experiment followed by obtaining oil saturation values at different positions.

Key words: heavy oil reservoir, in-situ combustion, oil saturation, analysis method

CLC Number:

TE357.41

MA De-sheng, GUAN Wen-long, ZHANG Xia-lin, LI Chun-tao, HAN Jing. Calculating Oil Saturation of In-Situ Combustion by Thermogravimetric Analysis[J]. Xinjiang Petroleum Geology, 2009, 30(6): 714-716.

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Calculating Oil Saturation of In-Situ Combustion by Thermogravimetric Analysis

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