HYSAL® SYSTEM
DESCRIPTION

The Hysal System utilizes either sized sodium chloride or calcium carbonate bridging particles for lost circulation pill applications requiring fluid densities above 12.5 lb/gal. The Hysal System is composed of three basic products, Hysal SF and Hysal HT with sodium chloride bridging solids, and Hysal C with calcium carbonate.

The Hysal System can be used for:

  • Lost circulation pills
  • Perforating fluid loss pills
  • Pre/post gravel pack fluid loss pills

Hysal products may be formulated in calcium chloride, calcium bromide and/or zinc bromide mixtures. Hysal is packaged in 50 lb or 25 kg sacks.

FEATURES
  • Applicable across a broad range of fluid densities
  • Provides effective bridging and temporary plugging of productive formations and flows easily through wire-wrapped production or tell-tale screens during displacement
  • Can be used to seal inside a completion screen to prevent losses with the addition of larger bridging particles
  • Incorporates a unique combination of derivatized starch, buffer, and bridging solids which provides excellent filtration control up to 250°F
PRODUCT COMPONENTS FUNCTIONS
Hysal SF Derivatized starch, low reactivity alkaline buffer, sized NaCl (44 microns) One-sack lost circulation treatment
Hysal HT Derivatized starch, sized NaCl (44 microns) Lost circulation treatment for higher temperatures
Hysal C Derivatized starch, low reactivity alkaline buffer, sized CaCO3 (65 microns) One-sack lost circulation treatment
Hysal Activator Glycol mixture Polar additive
Alka Buff®-Hi High reactivity alkaline buffer Stabilizer for zinc bromide brines
pH Buffer Low reactivity alkaline buffer Stabilizer for calcium bromide brines
Thermasal™-B High reactivity alkaline buffer Stabilizer for higher temperatures
Plug-Sal®, Plug-Sal X, Plug-Sal XC Medium to coarse NaCl Bridging/lost circulation additives
Sluggit®, Sluggit CM, Sluggit Plus Medium to coarse CaCO3 Bridging/lost circulation additives

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