Design and Practice of Steam Flooding on Anisotropic Heavy-Oil Reservoir with Edge-Bottom Water

Abstract:

Liaohe block J is a super heavy oil reservoir with relatively strong anisotropy and active edge-bottom water condition. After more than two decades of huff and puff production, the block now reaches a low production rate period, and the local part of the block also encounters serious edge-bottom water invasion. Now steam flooding is used as a switching method to invert the production decline tendency. Applied with thermal recovery process and numerical simulation method, reservoir pressure at flooding conversion, pressure control in steam flooding, injection-production parameters and well pattern are used to optimize the key techniques of steam flooding design. The design results are as follows: the reservoir pressure at flooding conversion as well as during steam flooding process should be controlled below 5 Mpa; the unit volume steam injection rate is 1.65t/d.hm2.m and the bottom-hole steam quality of injecter is no less than 53%; the injection-production ratio is 1.1:1 and inversed 9 point pattern with a 83m well space is used. The steam flooding pilot has been carried out for more than 2 years and obtains favorable benefits.

• Periodical: Applied Mechanics and Materials (Volumes 71-78)
• Pages: 2049-2054
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.71-78.2049
• Online since: July 2011
• Authors: Jin Li Zhu, Liang Liang Jiang, Li Cheng Liu, Yu Qiu Lin
• Keywords: Edge-Bottom Water, Heavy Oil Reservoir, Numerical Simulation, Steam Flooding, Thermal Recovery Engineering

References

[1] Zhang Rui, Thermal recovery technique for heavy oil, Petroleum Industry Press, Beijing, (1999).

[2] Liu Wenzhang, Thermal recovery engineering of steam injection in heavy oil, Petroleum Industry Press, Beijing, (1996).

[3] Xing Jingkui, Numerical simulation research on steamflood in Gao 3-4-066 pilot, J. Special Oil Gas Reservoir. 11 (2000) 43-45.

[4] Liu Bin, Evaluation methodology research on of steamflood pilot performance in Qi Fault Block 40, J. Special Oil Gas Reservoir. 12 (2005) 33-35.

[5] Yue Qingshan, Zhao Hongyan, Ma Desheng, New method for optimized design of steamflood, J. Special Oil Gas Reservoir. 16 (1997) 19-23.