The imbibition process of waterflooding in naturally fractured reservoirs
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Date
2005-02-17
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Texas A&M University
Abstract
This thesis presents procedures to properly simulate naturally fractured reservoirs using dual-porosity models.
The main objectives of this work are to: (1) determine if the spontaneous imbibition can be simulated using a two phase CMG simulator and validate it with laboratory experiments in the literature; (2) study the effect of countercurrent imbibition in field scale applications; and (3) develop procedures for using the dual-porosity to simulate fluid displacement in a naturally fractured reservoir.
Reservoir simulation techniques, analytical solutions and numerical simulation for a two phase single and dual-porosity are used to achieve our objectives.
Analysis of a single matrix block with an injector and a producer well connected by a single fracture is analyzed and compared with both two phase single and dual-porosity models.
Procedures for obtaining reliable results when modeling a naturally fractured reservoir with a two phase dual-porosity model are presented and analyzed.
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Keywords
imbibition, fractures, shape factor, waterflooding, countercurrent