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Exam CodeExam Name
Check current certifications – older formulations of Nalco 3688 may not be certified for drinking water contact. Do not use in potable water systems unless the latest SDS states NSF-60 compliance.
Because Nalco Water operates on a direct sales model and authorized distributor network, you cannot buy Nalco 3688 on Amazon or Alibaba (beware of counterfeit sellers).
Beyond daily topside injection, Nalco 3688 is famous for near-wellbore squeeze treatments. In this application, the chemical is pumped down the annulus or into the formation, allowed to "soak," and then the well is put back on production.
During a squeeze:
This prevents "tight emulsions" caused by high shear intakes of electric submersible pumps (ESPs) or rod pumps.
Use a phosphate analyzer and a pH controller. Nalco 3688 functions best at a pH of 7.2 to 7.8. Below 7.0, corrosion of yellow metals may increase; above 8.2, calcium phosphate scale can form.
⚠️ Critical Note: Never feed Nalco 3688 as a slug dose. Always use a metering pump with a day tank to maintain a steady-state residual.
Choose Nalco 3688 if:
Avoid Nalco 3688 if:
Prices fluctuate with crude oil prices and raw surfactant costs. As of recent data:
Nalco 3688 is considered a "premium" product—roughly 15-20% more expensive than commodity demulsifiers, but often effective at half the dosage.
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Check current certifications – older formulations of Nalco 3688 may not be certified for drinking water contact. Do not use in potable water systems unless the latest SDS states NSF-60 compliance.
Because Nalco Water operates on a direct sales model and authorized distributor network, you cannot buy Nalco 3688 on Amazon or Alibaba (beware of counterfeit sellers).
Beyond daily topside injection, Nalco 3688 is famous for near-wellbore squeeze treatments. In this application, the chemical is pumped down the annulus or into the formation, allowed to "soak," and then the well is put back on production.
During a squeeze:
This prevents "tight emulsions" caused by high shear intakes of electric submersible pumps (ESPs) or rod pumps.
Use a phosphate analyzer and a pH controller. Nalco 3688 functions best at a pH of 7.2 to 7.8. Below 7.0, corrosion of yellow metals may increase; above 8.2, calcium phosphate scale can form.
⚠️ Critical Note: Never feed Nalco 3688 as a slug dose. Always use a metering pump with a day tank to maintain a steady-state residual.
Choose Nalco 3688 if:
Avoid Nalco 3688 if:
Prices fluctuate with crude oil prices and raw surfactant costs. As of recent data:
Nalco 3688 is considered a "premium" product—roughly 15-20% more expensive than commodity demulsifiers, but often effective at half the dosage.
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