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Reservoir Formation Damage Episode 2 Part 2

Tham khảo tài liệu 'reservoir formation damage episode 2 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Two-Phase Formation Damage by Fines Migration 257 Experiment r- simulation Figure 11-7. Cumulative fluid loss vs. filtration time during mud filtration Liu and Civan 1996 SPE reprinted by permission of the Society of Petroleum Engineers . Core Length cm Experiment-----Simulation Figure 11-8. Instantaneous to initial permeability ratio or permeability alteration factor vs. core length after one hour of filtration time during mud filtration Liu and Civan 1996 SPE reprinted by permission of the Society of Petroleum Engineers . 258 Reservoir Formation Damage Experiment -------Simulation -------2-Phase Flow Figure 11-9. Cumulative fluid loss vs. filtration time during dynamic mud filtration Liu and Civan 1996 SPE reprinted by permission of the Society of Petroleum Engineers . Experiment -------Simulation -------2-Phase Flow Figure 11-10. Instantaneous to initial permeability ratio or permeability alteration factor vs. filtration time during dynamic mud filtration Liu and Civan 1996 SPE reprinted by permission of the Society of Petroleum Engineers . Two-Phase Formation Damage by Fines Migration 259 Prediction of formation damage due to dynamic mud filtration in two-phase flow was also carried out to demonstrate the capacity and application of the model and to provide a comparison with single-phase flow results. If the core studied by Jiao and Sharma 1992 was saturated by oil prior to mud filtration the invasion of the water-based mud would lead to two-phase flow of oil and water in the rock. The same model parameters determined above for mud filtration in single-phase flow were used. Additional data necessary for simulation including connate water saturation residual oil saturation and relative permeabilities are adapted from the case of fines migration in two-phase flow that was also simulated above. The predicted mud filtration volume and permeability alteration in two-phase flow are also plotted in Figures 11-9 and 11-10 as denoted by the dashed lines. These results .