Study and Field Application of a Profile Control Agent in a High Temperature and High Salinity Reservoir
- Dai, C.
- You, Q.
- He, L.
- Zhao, F.
DOIAbstract
In Order to solve Me problem that polymer gel is not suitable for profile control in high temperature and high salinity reservoirs. a good inorganic profile control agent (Na2O center dot mSiO(2)) is studied in this article. The results show that sodium silicate in high temperatures and high salinity can self-generate white precipitation, which can effectively block high permeability zones and/or thief zones and expand sweep volume. The precipitation mass is related to modulus, temperature,salinity, and aging time in high temperatures. Sand-packed models experiments indicate that sodium silicate in high temperatures and high salinity has a good blocking and oil displacement effect, which can further enhance ail recovery. Field application r...
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