A Novel Deliverability Equation for Shallow Layer and Low Permeability Reservoirs with Horizontal Fracture

Abstract:

In order to predict the productivity of vertical well for shallow layer and low permeability reservoirs with horizontal fracture, based on the theory of horizontal fracture distribution and oil seepage in reservoir, establish the reservoir seepage physical model for shallow layer and low permeability reservoirs with horizontal fracture, and derive a novel deliverability equation, considering the effect of reservoir properties, fluid properties, horizontal fracture parameters and working systems. Furthermore, the equation was applied and performed sensitivity analysis to the productivity of a vertical well in Yanchang Chang 6 layer reservoir. Results show that vertical permeability, oil viscosity and the semiminor axis of horizontal fracture have more significant impact on well productivity. With real cases, it is demonstrated the established deliverability equation is simple and practical and meets the engineering accuracy requirements.

• Periodical: Advanced Materials Research (Volumes 616-618)
• Pages: 1000-1007
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.616-618.1000
• Online since: December 2012
• Authors: Yue Yang, Xiang Fang Li, Keliu Wu, Jian Yang, Jun Tai Shi, Jie Fan
• Keywords: Deliverability Equation, Fracturing, Horizontal Fracture, Low-Permeability Reservoir, Shallow Layer

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