The Analysis of EOR Effect by In-situ CO2 Generated During Steam Injection in Heavy Oil Carbonate Reservoir

Title
The Analysis of EOR Effect by In-situ CO2 Generated During Steam Injection in Heavy Oil Carbonate Reservoir
Authors
성원모
Issue Date
2015-06
Publisher
EAGE
Citation
77th EAGE Conference and Exhibition 2015 , Page. 1-5
Abstract
In heavy oil carbonate reservoir with steam injection, the efficiency of steam imbibition into tight matrix can be improved by the alteration of oil-wet into water-wet condition with increasing temperature. Additionally, in-situ CO2 gas generated by geochemical reaction between carbonate rock and steam may play an important role on the improvement of oil flow. This study developed in-situ CO2 generation model and coupled it with conventional thermal multicomponent reservoir simulator. Firstly, by utilizing the developed model, when steam was injected into single block tight carbonate matrix, the improvement of oil flow occurred by facilitating in-situ CO2 generation as well as thermally induced wettability alteration. Secondly, in a heavy oil fractured carbonate reservoir system including steam injector and producer, this study proposed that the implementation of insitu CO2 generation model into conventional thermal reservoir simulator is essential for predicting the oil production more accurately
URI
http://earthdoc.eage.org/publication/publicationdetails/?publication=81084http://hdl.handle.net/20.500.11754/25739
DOI
http://dx.doi.org/10.3997/2214-4609.201413331
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ETC
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