Sodium Formate Fluids

The formate salts of alkali metals are very soluble in water and form brines of very high density and low crystallization temperatures. Sodium is the least soluble of the three formate brines, cesium and potassium formate are more soluble. Formula = NaCOOH

Sodium Formate fluids, like cesium formate, are ideal as base fluids in a number of industries. These non- corrosive organic monovalent fluids offer a number of performance benefits over traditional brines. Sodium formates when mixed with cesium and/or Potassium formate cover the entire density range.

Sodium Formate fluids are non- corrosive organic monovalent fluids and offer a number of performance benefits over traditional divalent brines.
Higher Density: Sodium formate fluids can reach 1.3 sg (10.8 ppg) at saturation. Sodium formate is 49% w/w soluble in water. Traditional divalent chloride and bromide brines are not as soluble in this density range, +/- 30% w/w.
Solids Free: Sodium formate fluids are solids free. Weighting agents, like barite, are not needed to reach a desired fluid density.
Environmentally Responsible: Sodium formate fluids have been awarded a grouping of "E" by the U.K. Department of Trade and Industry, the most favorable rating.
Non-Damaging: Sodium formate fluids are monovalent and will not interact with reservoir waters to form precipitates. Traditional divalent brines can cause damage through this mechanism.
Thermally Stable: Sodium formate fluids have performed without problem in numerous wellbore operations around the world.
Lubricious: Sodium formate fluids exhibit lubricity characteristics that are equal to or exceed that of oil muds. Coiled tubing field trials have proven these characteristics.

Cabot Specialty Fluids (CSF), 25025 I-45 North, Suite 385, The Woodlands, TX 77380. Tel: 281-298-9955; Fax: 281-298-6190.