Design,construction and operation of lab scale cylindrical steam assisted gravity drainage model for heavy oil recovery |
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Authors: | Nansuk You Songhun Yoon Wonkyu Lee Heung Yeoun Lee Sang-Yeop Park Jae Heon Shim Jong Soo Kim Chul Wee Lee |
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Affiliation: | (1) Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, Canada;(2) Alberta Ingenuity Centre for In Situ Energy (AICISE), Schulich School of Engineering, University of Calgary, Calgary, AB, Canada; |
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Abstract: | Based on a theoretical background 1,2], a lab scale cylindrical SAGD (steam assisted gravity drainage) model was designed,
constructed and operated. There are six different parts in the apparatus: (1) water supplier, (2) steam generator, (3) SAGD
cylindrical model, (4) cooling system, (5) constant pressure maintaining system and (6) production system. Temperature, pressure
and steam injection rate were controlled by computer, and product (mixture of oil and water) was collected/separated manually.
Extra heavy oil (<10 cp at 200 °C) and glass bead (diameter 1.5 mm) were mixed homogeneously for making porosity of 0.3 and
applied for simulating oil sand. For obtaining optimum operation conditions of SAGD apparatus, several attempts were made.
When the steam at high temperature (160–180 °C), high pressure (8–9 atm) was injected with 20–25 cc/min, cSOR (cumulative
steam to oil ratio) of about 5 was obtained with oil recovery of 78.8%. |
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