Mathematical Modeling of Steam-Assisted Gravity Drainage

Математическое моделирование гравитационного дренажа с применением пара
Serhat Akın
2005-10-14
SCID:  54.1/wu2j5cwk Discuss with AI
gravity drainageheavy-oil production rate validationinverted triangle steam-zonesteam-assisted gravity drainageviscosity dependence on temperature and asphaltene
Abstract (AI)
Summary A mathematical model for gravity drainage in heavy-oil reservoirs and tar sands during steam injection in linear geometry is proposed. The mathematical model is based on the experimental observations that the steam-zone shape is an inverted triangle with the vertex fixed at the bottom production well. Both temperature and asphaltene content dependence on the viscosity of the drained heavy oil are considered. The developed model has been validated with experimental data presented in the literature. The heavy-oil production rate conforms well to previously published data covering a wide range of heavy oils and sands for gravity drainage.
Key Findings
1
A mathematical model for gravity drainage during steam injection in linear geometry is proposed for heavy-oil reservoirs and tar sands.
2
Predicted heavy-oil production rates agree well with previously published data across a wide range of heavy oils and sands for gravity drainage.
3
The developed model was validated against experimental data from the literature.
4
The model assumes the steam-zone shape is an inverted triangle with its vertex fixed at the bottom production well, based on experimental observations.
5
The model incorporates dependence of drained heavy-oil viscosity on both temperature and asphaltene content.
Research Object

Gravity drainage process in heavy-oil reservoirs and tar sands during steam injection in linear geometry

Research Subject

Mathematical modeling of steam-assisted gravity drainage capturing steam-zone inverted-triangle shape, temperature- and asphaltene-dependent viscosity effects, and prediction of heavy-oil production rate validated against experimental data

Publication Details
Publication Date
2005-10-14
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Authors
Serhat Akın
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