Scheme to Tap Remaining Oil Potential in Poor Pay Zones

Abstract:

This paper analyzed the balanced flood performance of various layers and the remaining oil distribution through numerical simulation technique. It shows that, the main remaining oil type of intended layers is caused by voidage-injection imperfection. Considering the needs of the follow-up infill well pattern and tertiary oil recovery, we decide to maintain the relative independence and integrity of each well network without disturbing the pattern configuration and the mining exploit object of various sets of well pattern. Finally we confirm to perforate adding the first infill wells of intended layers to consummate the water flooding regime. Through analyzing the production target of different well pattern optimization programs relatively, it shows that the best program has regular well pattern and large drilled thickness.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 1257-1261
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.1257
• Online since: August 2013
• Authors: Ji Cheng Zhang, Shu Hong Zhao, Jin Yu Lan, Kao Ping Song
• Keywords: Poor Pay Zones, Remaining Oil, Well Pattern Optimization

References

[1] Kaoping Song, Hongcai Song, Wenxiang Wu. The theory basis of Reservoir numerical simulation, edited by Petroleum Industry Press, Beijing (1996), pp.1-8. (in Chinese).

[2] JiCheng Zhang, Kaoping Song. Considerable potential remains after Daqing polymer flood, edited by Oil & Gas Journal, Sept. 15, 2008, 106(35), pp.61-66.

[3] Zhaoliang Wei, Shangjun Huang. Reservoir numerical simulation technology and methods in highwater cut period, edited by Journal of Southwest Petroleum University (Science & Technology Edition), 2008, 30(01), pp.103-105.

[4] Chunhua Ma, Hao Zheng, Wenjun Wang. Study on Remaining Oil Distribution after Polymer Flooding Using Numerical Simulation, edited by Petroleum Drilling Techniques, 2007, 35(4)，pp.76-79.

[5] Chunhua Ma, Hao Zheng, Kaoping Song, et al. Remaining Oil Distribution Laws and Numerical Simulation after Polymer Flooding in the West Block of Beierdong Are, edited by Journal of Oil and Gas Technology(J. JPI), 2007, 29(01), pp.99-103.

[6] Jicheng Zhang, Kaoping Song, Li Liu and Erlong Yang. Investigation on Mechanisms of Polymer Enhanced Oil Recovery by Nuclear Magnetic Resonance and Microscopic Theoretical Analysis, edited by Chinese Physics Letters, May, 2008, 25(5), pp.1750-1752.

DOI: 10.1088/0256-307x/25/5/062

[7] Jide Wei, Qinglong Du. Distribution characteristics and controlled factors of residual oils in daqing oilfield, edited by Oil & Gas Geology, 2001, 22(1), pp.57-59.

[8] Qiong Wu, Xiaoming Zhang, Dianbiao Zhao, et al. Practice and cognition of microscopic injection-production pattern improvement at high water cut stage in Xinli oilfield, edited by Special Oil & Gas Reservoirs, 2010, 17(4), pp.75-78.

[9] Jicheng Zhang, Kaoping Song. Optimization method to choose target zone for perforation-adding treatment, edited by Mathematics in Practice and Theory, 2007, 37(7), pp.88-92.

[10] Jie Lv. Method of Tapping Remaining Oil through Perforations Adding at Later Stage of High Water-cut, edited by Sino-Global Energy, vol. 13(2008), pp.48-50.