Influence of main parameters on the displacement process by spontaneous imbibition based on LBM
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View abstract on PubMed
Summary
This summary is machine-generated.Water imbibition in tight oil/gas reservoirs enhances recovery by displacing hydrocarbons. This study reveals connectivity significantly impacts imbibition velocity, while capillary number is key for oil displacement efficiency in shale formations.
Area Of Science
- Petroleum Engineering
- Geoscience
- Chemical Engineering
Background
- Water imbibition is crucial for enhancing oil and gas recovery from tight reservoirs.
- Understanding spontaneous imbibition dynamics is vital for optimizing hydrocarbon extraction from shale formations.
Purpose Of The Study
- To investigate the influence of key dimensionless parameters on spontaneous imbibition in tight shale.
- To determine the impact of pore-scale characteristics on imbibition velocity and oil displacement efficiency.
Main Methods
- Analysis of pore distribution from a real shale sample.
- Investigating the effects of four main dimensionless parameters on spontaneous imbibition.
Main Results
- Pore connectivity demonstrated the most significant influence on average imbibition velocity.
- The capillary number was found to have the greatest impact on oil displacement efficiency.
- The effects of the studied parameters were non-monotonic, indicating complex interactions.
Conclusions
- Pore connectivity and capillary number are critical factors governing imbibition and displacement in tight shale reservoirs.
- Optimizing recovery requires considering the combined, non-monotonic effects of multiple dimensionless parameters.
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