Sulistyarso, Harry Budiharjo and Nugroho, Handika A and Saputra, Benny A (2017) Increasing Waterflood Recovery Efficiency Through Microbial Selective Plugging. Joint Indonesian Association of Geophysicist (HAGI), Indonesian Association of Geologists (IAGI), Indonesian Association of Petroleum Facility (IAFMI), Indonesian Association of Petroleum Engineer (IATMI).
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Abstract
Waterflooding is one of the improve oil recovery method
that is injecting water to the reservoir through the injection
well in purpose to push the oil out to the production well
and increase the oil recovery. But because of the rock
porosity and permeability heterogeneity of the reservoir
make the water tends to flow to the high porosity and high
permeability in the reservoir rock, so the waterflooding
won’t sweep the oil in the lower porosity and permeability,
and left it behind. This condition can cause the water
breakthrough and water channeling problem where the
water rate production will be higher than the oil rate
production.
The microbial selective plugging is a method of plugging
high pore rock uses microbial or microbial metabolic
product. The purpose of Microbial Selective Plugging is to
increase the efficiency of waterflooding by plugging the
high permeability zones and directing injected water into
zones of the reservoir that have not been taking water
(Lower Permeability Zone). And the water injection can
push the oil in lower permeability zone out of the reservoir.
In 2009, the microbial selective plugging had been
observed by Suthar and his team from Microbiology and
Biotechnology Department Centre, India. The Bacillus
licheniformis TT33 was used as the bacteria, because the
bacteria is facultative anaerobic, halotolerant,
thermotolerant, and bio-film forming microorganism.
Bacillus licheniformis TT33 can also produce
Exopolymeric Substances and bio-surfactant. The selective
plugging of Bacillus licheniformis TT33 was analyzed
using sand pack column which has saturated with 80±2,9%
oil, and the rest with brine. And after the brine flooding,
there was 46,9±2,7% unrecoverable oil, and the amount of
the unrecoverable oil which had been recovered by Bacillus
licheniformis TT33 was 27,7±3,5%.
| Item Type: | Other |
|---|---|
| Subjek: | T Technology > T Technology (General) |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | DR.,IR HARRY BUDIHARJO SULISTYARSO |
| Date Deposited: | 09 Aug 2018 04:45 |
| Last Modified: | 27 Jun 2020 04:40 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/16044 |
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