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Article

A Calculation Model of the Dimensionless Productivity Index Based on Non-Piston Leading Edge Propulsion Theory in Multiple Oilfield Development Phases

1
Key Laboratory of Enhanced Oil Recovery (Northeast Petroleum University), Ministry of Education, College of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
2
Post-Doctoral Scientific Research Station, Daqing Oilfield Company, Daqing 163413, China
3
CNOOC Research Center CNOOC Research Institute, Beijing 10027, China
4
School of Mathematics and Statistics, Northeast Petroleum University, Daqing 163318, China
*
Authors to whom correspondence should be addressed.
Processes 2019, 7(11), 821; https://doi.org/10.3390/pr7110821
Received: 10 August 2019 / Revised: 15 October 2019 / Accepted: 30 October 2019 / Published: 6 November 2019
(This article belongs to the Section Chemical Processes and Systems)
The dimensionless productivity index is an important indicator for measuring the oil production capacity of oilfields. The traditional calculation method of the dimensionless productivity index is not suitable for the continuous multiple development phases of oilfields. In this study, based on Darcy’s Law and the theory of non-piston leading edge propulsion, we considered the influence of capillary pressure and derived a differential equation for leading edge propulsion distance. We established a calculation model of the dimensionless productivity index that is suitable for the multiple development phases of oilfields, including water flooding, polymer flooding, and binary compound flooding. The model was applied to the W block of the JZ9-3 oilfield, and the calculation results of the model were compared with the actual statistical results. The results show that the calculation error rates of the dimensionless productivity index in three phases of oilfield development are 4.67%, 17.65%, and 18.50%, respectively, and the average error rate is 10.38% in the overall development phase. The dimensionless productivity index curve shows a trend of first rising, then falling, and finally stabilizing when the pore volume number is included. This calculation model expands the field application scope of the theoretical dimensionless productivity index, which is convenient for application in oilfields, and improves the efficiency of the comprehensive evaluation of oilfields during multiple development phases. View Full-Text
Keywords: non-piston leading edge propulsion theory; the dimensionless productivity index; capillary pressure; polymer flooding; binary compound flooding non-piston leading edge propulsion theory; the dimensionless productivity index; capillary pressure; polymer flooding; binary compound flooding
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MDPI and ACS Style

Huang, B.; Liang, Q.; Fu, C.; He, C.; Song, K.; Liu, J. A Calculation Model of the Dimensionless Productivity Index Based on Non-Piston Leading Edge Propulsion Theory in Multiple Oilfield Development Phases. Processes 2019, 7, 821. https://doi.org/10.3390/pr7110821

AMA Style

Huang B, Liang Q, Fu C, He C, Song K, Liu J. A Calculation Model of the Dimensionless Productivity Index Based on Non-Piston Leading Edge Propulsion Theory in Multiple Oilfield Development Phases. Processes. 2019; 7(11):821. https://doi.org/10.3390/pr7110821

Chicago/Turabian Style

Huang, Bin, Qiaoyue Liang, Cheng Fu, Chunbai He, Kaoping Song, and Jinzi Liu. 2019. "A Calculation Model of the Dimensionless Productivity Index Based on Non-Piston Leading Edge Propulsion Theory in Multiple Oilfield Development Phases" Processes 7, no. 11: 821. https://doi.org/10.3390/pr7110821

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