INFLUENCE OF WAVE TYPE ON VIBRATION EFFECT IN LOW PERMEABILITY CORE SAMPLES
Barabanov in his research showed that S-wave attenuation lower than P-wave so that S-wave as a source of vibration would give better effect than P-wave to increase oil recovery factor. This research showed that P-wave in low permeability would give better effect to increase oli recovery than S-w...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/83711 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Barabanov in his research showed that S-wave attenuation lower than P-wave so
that S-wave as a source of vibration would give better effect than P-wave to
increase oil recovery factor.
This research showed that P-wave in low permeability would give better effect to
increase oli recovery than S-wave.
Previous result showed the increase of oil RF, porosity, permeability, and
decreasing of Sor using S-wave type (circular mode). Recently, the equipment has
developed not only circular mode (S-wave type) as a previous result but also axial
mode (P-wave type).
This experiment used synthetic core with low (<50 md) to fair permeability on 15
Hz frequency with 0.1 ?m amplitude for P-wave and 0.2 ?m for S-wave. The RF
increment reached 8.3% on low permeability (34.8 md) and 10.29% on fair
permeability (115.4 md) at same amplitude for P-wave. On vibration stimulation
using circular mode, the increment of oil RF only occur on fair permeability. |
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