Flow visualization studies of solution gas drive process in heavy oil reservoirs with a glass micromodel

R. Bora, B. B. Maini, A. Chakma

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

A series of flow visualization experiments was carried out to examine the pore scale behavior of the solution gas drive process in heavy oil reservoirs. The main objective was to testify several speculative theories that had been put forward to explain the anomalous production behavior of heavy oil reservoirs producing under the solution gas drive process. Contrary to previous postulations, the asphaltene constituents did not appear to play a significant role in the nucleation and stabilization of the gas bubbles that evolved during the solution gas drive process. Experimental evidence also suggests that the production of heavy oil is not accompanied by a large population of microbubbles. These observations suggest that the production enhancement in the solution gas process in heavy oil reservoirs may be related to other mechanisms such as viscous coupling effects, sand production, wormhole effects, etc.

Original languageEnglish
Pages (from-to)224-229
Number of pages6
JournalSPE Reservoir Evaluation and Engineering
Volume3
Issue number3
Publication statusPublished - 2000
Externally publishedYes

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