Application of Nonlinear Flow in Ultra-Low Permeability Reservoir

According to the nonlinear fluid flow characteristics in the ultra-low permeability porous media, a reservoir mathematical model is established. Based on the black-oil model, a nonlinear flow reservoir numerical simulation program is compiled. The numerical simulation program is applied to an ultra-...

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Vydáno v:Physical and Numerical Simulation of Geotechnical Engineering číslo 26; s. 49
Hlavní autoři: Rongze, Yu, Yanan, Bian, Qun, Lei
Médium: Journal Article
Jazyk:angličtina
Vydáno: Brighton East St. Plum-Blossom Press Pty Ltd 01.03.2017
Témata:
Computer simulation
Developmental stages
Flow characteristics
Fluid flow
Formations
High pressure
Mathematical models
Nonlinearity
Oil and gas fields
Permeability
Porous media
Pressure gradients
Reservoirs
Water wells
ISSN:1838-3254, 2204-2040
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Shrnutí:According to the nonlinear fluid flow characteristics in the ultra-low permeability porous media, a reservoir mathematical model is established. Based on the black-oil model, a nonlinear flow reservoir numerical simulation program is compiled. The numerical simulation program is applied to an ultra-low permeability block in Jilin oilfield, the comparative analyses of Darcy flow and nonlinear flow are provided. The simulation results show that when considering nonlinear flow, the oil production is low; production decline is rapid; the recovery percent and the formation producing degree are low; the water cut increasing rate is high in the late stage of development; water injection response of producing wells and water propulsion speeds along vertical direction of artificial fracture are slow. In addition to the high pressure gradient near wellbore formation, the formation pressure gradient of the most areas is low, and the nonlinear flow plays the dominant role in the fluid flow of formation. The numerical simulation software which based on nonlinear flow can anticipate the dynamic characteristics of the ultra-low permeability reservoir exploitation more exactly.
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ISSN:1838-3254
2204-2040