An analytical model of SAGD process considering the effect of threshold pressure gradient
Аналитическая модель процесса SAGD с учётом эффекта порогового градиента давления
2018-05-01
SCID: 54.1/jfze6cdj
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cumulative steam-oil rationon-Newtonian oilnonlinear filtration lawsteam-assisted gravity drainagethreshold pressure gradient
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Abstract (AI)
An analytical model is proposed for the development of super-viscous oil deposits by the method of steam-assisted gravity drainage, taking into account the nonlinear filtration law with the limiting gradient. The influence of non-Newtonian properties of oil on the productivity of a horizontal well and the cumulative steam-oil ratio are studied. Verification of the proposed model based on the results of physical modeling of the SAGD process was carried out.
Key Findings
1
An analytical model for SAGD was developed that incorporates a nonlinear filtration law with a threshold (limiting) pressure gradient.
2
The model accounts for non-Newtonian (super-viscous) oil properties when evaluating horizontal well productivity.
3
The model evaluates effects on cumulative steam-oil ratio (SOR) due to non-Newtonian oil behavior and threshold pressure gradient.
4
The proposed analytical model was validated against results from physical modelling of the SAGD process.
Research Object
Steam-assisted gravity drainage (SAGD) development of super-viscous oil deposits incorporating a nonlinear filtration law with threshold pressure gradient
Research Subject
Effect of threshold (limiting) pressure gradient and non-Newtonian oil properties on horizontal well productivity and cumulative steam–oil ratio predicted by the analytical SAGD model
Publication Details
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2018-05-01
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