Horizontal Alternate Steam Drive Process for the Orinoco Heavy Oil Belt in Eastern Venezuela

2008 ◽  
Author(s):  
Edgar Alexander Fernandez ◽  
Jose L. Bashbush
Keyword(s):  
Heavy Oil ◽  
Steam Drive

A Study on the Technology of Steam - Hot Water - Nitrogen Compound Drive after Steam Channeling in Steam Flooding

2013 ◽  
Vol 316-317 ◽  
pp. 854-859
Author(s):  
Yu Chuan Cai ◽  
Yong Jian Liu ◽  
Xiang Fang Li ◽  
Yan Zun Li ◽  
Xiao Lin Zhang ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Nitrogen Compound ◽  
Thermal Recovery ◽  
Hot Water ◽  
Nitrogen Gas ◽  
Displacement Effect ◽  
Steam Flooding ◽  
Steam Drive ◽  
Phase Saturation ◽  
Heavy Oil Reservoirs

Nowadays most heavy oil reservoirs are developed by thermal recovery methods, such as steam huff - puff and steam flooding. At the late stage of heavy oil steam drive, because of steam overlap in the upper reservoir formation, steam channeling can easily occur in production well. The research has shown that development effect of steam - nitrogen compound drive is not as good as consideration after steam channeling. But by injecting water slug can decrease the effect of steam channeling. For increasing water phase saturation in high permeability channel, steam and nitrogen gas relative permeability will decrease. As result, it will enlarge the reservoir vertical producing degree, and at the same time take full advantage of the oil displacement effect of steam - nitrogen compound drive. Through the numerical simulation, the study found that, steam - water - nitrogen compound drive technology can achieve better recovery degree using high hot water temperature and shorter injection time.

Laboratory Studies of High-Temperature-Compound Steam Drive on Heavy Oil

2012 ◽  
Vol 524-527 ◽  
pp. 1185-1189
Author(s):  
Hai Huang ◽  
Wei Shi Zheng ◽  
Bo Chen ◽  
Yi Fei Liu
Keyword(s):  
High Temperature ◽  
Heavy Oil ◽  
Formation Condition ◽  
Displacement Efficiency ◽  
Oil Displacement ◽  
Water Breakthrough ◽  
Steam Drive ◽  
Oil Flow ◽  
Oil Displacement Efficiency ◽  
Gas Drive

This paper presents experimental work on the research of the mechanism of oil displacement of steam drive and high-temperature-compound steam drive, which in order to improve the conventional steam drive technology and increase the recovery of heavy oil. Many experiments were done with the sand-packed model under the formation condition. The results show that: (a) the high-temperature-compound steam drive could extend the water breakthrough time, increase the permeability of oil phase, reduce the residual oil saturation; (b) reducing the viscosity by CO2 dissolution, maintaining the pressure, improving the oil flow ratio, dissolved gas drive，Improving oil displacement efficiency，all of above were the increase production mechanism of high- temperature-compound steam drive.

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