Numerical Simulation of Thick Oil-Layer with Ultra-Low Permeability in Changqing Oilfield

Author

Xie Yu-feng ; Yang Zheng-ming ; Zhu Zhi-qiang ; Liu Ji

Author_Institution

Inst. of Porous Flow & Fluid Mech., Chinese Acad. of Sci., Langfang, China

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

4

Abstract

Chang 6 oil-layer in Huaqing district of Changqing oilfield is a typical thick oil layer with ultra-low permeability. After 2 years´ water flooding development, some of the production wells have been flooded with low oil recovery. Based on the geological model of Huaqing district, the ideal numerical models are established using the nonlinear flow numerical simulation software. Then the characteristics of water flooding development and influence factors are researched. At last, the perforation degree is optimized. The numerical simulation results show that the best perforation degree for positive and inverted rhythm of thick oil layer is 0.2 and 0.4 respectively.

Keywords

oil technology; percolation; permeability; water; Changqing oilfield; nonlinear flow numerical simulation software; perforation degree; production wells; thick oil-layer; time 2 year; ultra-low permeability; water flooding; Floods; Numerical models; Permeability; Petroleum; Production; Rhythm; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748458

Filename

5748458