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Abstract

Summary

A laboratory study on microsphere injection in a large volume (1 pore volume) was conducted to explore its oil recovery capacity as a flooding agent. This work aims to a Middle-East reservoir with oil-wet high-permeable carbonate in nature. An etched micromodel was made based on the pore network of natural core plugs and the pore network treated to oil-wet with silicon oil. Water flooding was conducted to displace oil at reservoir temperature (95°C), followed by 1 pore volume microsphere injection. A significant oil recovery was obtained using a microsphere concentration ranged from 0.5% to 5%. As a comparison, microsphere was injected into a water-wet micromodel to recover oil after water flooding, which also shows very positive results. This work proved the concept that microsphere injection can enhance the oil recovery in both oil-wet and water-wet reservoirs, once the treatment is conducted with sufficient amount and over the threshold microsphere concentration.

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/content/papers/10.3997/2214-4609.201701294
2017-06-12
2024-04-19

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701294
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Laboratory Study On Microsphere Injection Into Oil-Wet and Water-Wet Micromodels for Oil Recovery
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201701294
/content/papers/10.3997/2214-4609.201701294
/content/papers/10.3997/2214-4609.201701294
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