A Design Model of Technological Parameter for Multi-Layer Reservoir Profile Control

Abstract:

Following the criterion of zero pollution for non-target layer, an optimization model for multi-layer reservoir profile control was established by reservoir engineering method. Combining the selective injection mechanism of profile control agent, the whole injection process of profile control agent was simulated by the iteration calculation method of time step splitting. Firstly, the activated range of profile control layer was judged by means of threshold pressure of each formation; secondly, the flow rate of profile control agent was distributed by the water absorption index of each layer; finally, the wellhead injection pressure was calculated base on the pressure equilibrium mechanism. The model not only can be used to optimize the injection displacement and total injection volume of profile control, but also to predict the grading pressure during the process of profile control. In addition, the sensitivity of parameters in this model was analyzed, such as injection displacement, viscosity and resistance factor. Ultimately, the optimal design of injection parameters of profile control for an actual well group was put into practice.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 1328-1337
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.1328
• Online since: August 2013
• Authors: An Gang Zhang, Zi Fei Fan, Heng Song, Jiang Yuan Yao
• Keywords: Injection Displacement, Injection Pressure, Injection Volume, Parameter Optimization, Profile Control

References

[1] Feng Qihong, Yin Wenjun. Evaluation methods for profile control in blockwide[J]. Journal of china University of Petroleum(edition of natural science), 1999, 23(5): 35-37. (in chinese).

[2] Julio Vasquez, Larry Eoff, Dwyann Dalrymple. Laboratory Evaluation of a Relative Permeability Modifier for Profile Modification in Injection Wells[C]. SPE120669, (2009).

DOI: 10.2118/120669-ms

[3] Xiong Chunming, Tang Xiaofen. Technologies of water shut-off and profile control: An overview[J]. Petroleum Exploration and development, 2007, 34 (1): 83-88. (in chinese).

[4] Bai Baojun, Tang Xiaofen, Li Yuxiang. The optimization technology of block-wide injection profile control[J]. Petroleum Exploration and development, 2000，21(3)：60-62. (in chinese).

[5] Luo Jianxin, Zhang Liehui, Xu Hao, et al. New approach to determine chemical profile modification and treatment radius[J]. Oil drilling & production technology, 2007, 29(3): 69-74. (in chinese).

[6] Han Jianmen, Zhan Liang, Lu Kai, et al. Research and realization of prediction method of profile control chemicals quantity[J]. Computers and applied chemistry, 2003, 20(2): 33-35. (in chinese).

[7] Feng Qihong, Zhang Angang, Cai Rongwei, et al. An optimal design method of injection parameter for interlayer profile control. Petroleum geology and recovery efficiency, 2011, 18(5), 81-84. (in chinese).

[8] Li Zhongxing, Han Hongbao, Cheng Linsong, et al. A new solution and application of starting pressure gradient in ultra-low permeability reservoir[J]. Petroleum Exploration And Devolepment, 2004, 31(3): 107-109. (in chinese).

[9] Nicholas Kume. An Engineering Approach to Predicting Post-treatment Well Performance Using Selective Chemical Water Shut-off Techniques an RPM Example[C]. SPE84513, (2003).

DOI: 10.2118/84513-ms

[10] Huang Xiang, Wang Shengkui, et al. Method for Injection Pressure Prediction for Profile Control in Water Injection Wells[J]. Journal of Oil and Gas Technology, 2006, 28(5): 101-103. (in chinese).

[11] Wang Yuzhuo, Liu Xingquan, Li Kui. Quantification and optimized design method of the chemical profile control in water injection well[J]. Petroleum geology & oilfield development in Daqing, 2001, 20(3): 47-49. (in chinese).