Description

In�the�many�factors�causing�formation�damage,�that�from�water�block�is�one�of�the�major�factors.�In�the�process�of�completion�and�production,�water�based�well�killing�fluid,�washing�fluid,�and�other�fluids�will�cause�water�blocking�damage�once�they�enter�the�formation,�especially�to�those�wells�with�low�formation�pressure�(formation�pressure�gradient�
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1.�Typical�physical�properties�/Technical�data
(1)Appearance:�Colorless�or�light�yellow�liquid;
(2)Density:�0.*5~1.*5g/cm3;
(3)Temperature:�?**0?;���
(4)Surface�Tension:?*8mN/m;
(5)Interfacial�Tension:?0.6mN/m.
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2.�The�Principle�of�choosing�oil�well
The�anti-water�blocking�agent�is�mainly�used�at�wells�with�low�formation�pressure�which�causes�working�fluid�loss,�wells�with�fluid�being�difficult�to�flow�back,�and�the�wells�that�have�lowered�production�rate�because�of�working�fluid�damage.
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3.�Uses
Add�this�product�into�well�killing�fluid,�well�cleaning�fluid,�or�sand�carrier�fluid�at�6%�during�operation.�
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4.�Notes
(1)In�the�working�fluid�containing�this�product,�no�other�chemicals�should�be�added,�such�as�cleaning�agent,�clay�stabilizing�agent,�as�well�as�the�cleanup�agent�since�they�will�cause�the�anti-water�blocking�agent�lose�its�effectiveness.�
(2)This�product�itself�is�good�at�cleaning�and�helps�the�water�flow�back�process.�A�separate�cleaner�and�flowback�agent�is�not�necessary.�
(3)If�clay�stabilizer�is�necessary�in�the�working�fluid,�we�have�a�special�type�for�that�purpose�which�is�compatible�with�the�anti-water�blocking�agent.