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Sand Stabilization

sand-stabilization

ZetaPro

What does it do?

  • ZetaPro™ alters the zeta potential of solid surfaces to the optimum range (between -20 & +20 mV). It is an agglomerating material with high conductivity that stays in the formation where it creates a random charge distribution on the surface of the solid particles. This allows the particles to freely associate bonds that increase fluidity and prevent clogging. It reduces the potential for erosion and when added to aqueous solutions coats rapidly any metal oxide or anionic substrate like proppant, sand or coal.
Why is it necessary?

  • ZetaPro™ minimizes and prevents the migration of sand by binding with the sand and ceramic material used in the drilling process to stabilize the integrity of newly formed fractures. Sandstone reservoirs eventually produce sand, and for approximately 70% of oil and gas reserves worldwide sand production is or will become a problem. Critical drawdown pressure is a function of reservoir-pressure depletion as well as initial rock stresses, stress changes, rock strength, well inclination and natural consolidation processes. When this critical drawdown pressure is exceeded, sand production can also occur. Therefore, by binding to the sand proppants, ZetaPro™ improves the sieve and reduces the migration of sand into the oil increasing sand-free flow rates.
  • ZetaPro™ enhances fluid load recovery and conductivity of proppants, and contains a scale reducing agent to help reduce oxidation. The larger particles created through ionic bonding process can be easily collected in filters used when treating processed water. The oil and natural gas now move freely through the amalgamation reducing water needs.
What does it treat?

  • During the fracturing process sandy soils can cause lose sand fines to migrate into fluids, creating a sludge that is more viscous and can damage the wellbore. When sprayed into the well before injection fluids, ZetaPro can coat the walls and reduce the migration of sand fines.
  • ZetaPro™ can also be used to treat the sand and other proppants that are injected with fluid to support and stabilize the fractures. Because it changes the zeta potential of the proppant in an irregular ionic formation, the particles become larger and bond together to create a sieve that the oil can pass through easily. The amalgamation of larger particles can then be easily captured by screens when treating processed water for recycling and reuse purposes.
  • example
  • ZetaPro™ can be pumped through coiled tubing or existing tubulars reducing the need for specialized equipment. The newly coated material reduces stress conditions, damage to skins, and corrosion, leaving fewer sharp edges or exposed minerals.
  • ZetaPro™ has a treatment life of greater than 1 year.
  • ZetaPro™ helps restore the aggregation of grounded coal.

How is it applied?

  • ZetaPro™ is squeezed into formation at a solution typically 10% in water/2% KCl. Since it is only water dispersible, it must be kept agitated at the surface in the treatment brine. The wells should be shut in for more than 24 hours with annulus packing to ensure delivery.

How is it shipped?

  • ZetaPro™ is dark red in color and has a pungent amine or ammonia odor. It is shipped in liquid form in lined metal drums, stainless steel totes, bulk containers of stainless steel.

Contact us today for more information.