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A laboratory study of single-well steam-assisted gravity drainage process
Date
2001-12-01
Author
Akın, Serhat
Metadata
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An investigation of the optimization of startup procedure for single-well steam-assisted gravity drainage (SW-SAGD) was made as the project economics are influenced significantly by the early production response. An experimental investigation of two early-time processes namely cyclic steam injection and steam circulation to improve reservoir heating is discussed and compared to continuous steam injection as well as other well configurations like vertical injector-horizontal producer and horizontal injector- horizontal producer. Crushed limestone saturated with heavy oil (12.8degrees API) and water was packed in a laboratory model for the experiments. The effectiveness of the methods is compared within themselves and to conventional steam-assisted gravity drainage (SAGD) by measuring the size of the steam chamber as a function of time, The steam chamber area for cyclic steam injection is slightly greater than that of steam circulation case. Furthermore, numerical simulation studies of different early-time processes were conducted and compared to the experimental data using a commercial simulator. It was observed that the numerical model results underestimated the cumulative oil recovery and the steam chamber size. Results from this study, including cumulative recoveries, temperature distributions, and production rates display the differences between the methods.
Subject Keywords
Steam-assisted gravity drainage (SAGD)
,
Horizontal wells
,
Thermal recovery
,
Numerical simulation
URI
https://hdl.handle.net/11511/33215
Journal
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
DOI
https://doi.org/10.1016/s0920-4105(01)00145-0
Collections
Department of Petroleum and Natural Gas Engineering, Article
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S. Akın, “A laboratory study of single-well steam-assisted gravity drainage process,”
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
, pp. 23–33, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33215.