PBS-ACC is a salt/magnesium compound that serves as a crosslink catalyst when mixed with PBS Plug. Also, calcium chloride may be used as a secondary accelerator in cold-water applications, or to increase rigidity of the plug. The polymers in the base product add viscosity and filtration control and are cross-linked by the borate anion in the sparingly water-soluble borate salts. The catalysts initiate the crosslink reaction by raising the pH and salinity of the freshwater mixture. This reaction is accelerated by the normally higher temperature in the wellbore.
PHYSICAL & CHEMICAL PROPERTIES
|Appearance||Dark Green Liquid|
|Bulk Density||1400 kg/m3|
|Solubility||Soluble in water|
The combination of PBS Plug and PBS-ACC satisfies the requirements for the majority of extreme lost circulation situations where anything from induced fractures to total losses is experienced.
|PBS Plug Activator||Blend of salt and magnesium compounds||Primary crosslink catalyst|
PBS-ACC is available in 50 lb (22.7 kg) sacks, palletized as 40 sacks per pallet.
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