DESCRIPTION
Potassium Chloride (KCl) is a soluble salt that is an extremely efficient shale stabilizer when drilling hydro sensitive
clays and shales. Inhibition is produced through exchange; the potassium ion enters between the individual clay platelets
in the shale so that they are held together, thus eliminating entry of water from the drilling fluid.
APPLICATIONS/FUNCTIONS
Potassium Chloride (KCl) can be added directly to a drilling fluid system to enhance its inhibitive quality, and can be
used as a weighting agent ranging in densities from 1.005 S.G. (8.4 ppg) to 1.162 S.G. (9.7 ppg). Potassium Chloride (KCl)
solution becomes saturated near 1.162 S.G. (9.7 ppg).
ADVANTAGES
- Inexpensive and easily obtainable
- Benefits achieved at low concentrations
- Compatible with most drilling fluid additives
- Stabilizes water sensitive clays and shales
- Prevents issues resulting for shale instability
- Fast dissolving
TYPICAL PROPERTIES
- Appearance: White crystals or powder
- pH saturated aq. sl. @ 15°C: 7.0
- Solubility: 28.1g / 100g of water @ 0°C
34.2g / 100g of water @ 20°C
37.2g / 100g of water @ 40°C
- Purity: 95% min
RECOMMENDED TREATMENT
Normal use: 3.0 % (30 kg) - 8.0 % (80 kg) by volume (per m3)
Polymers such as Ezee-trol, Aus-trol, Ezee-pac R & L, PACs, CR-650 and Liqui-pol can all be used in conjunction with
Potassium Chloride (KCl). It is recommended the water be pre-treated and polymers mixed before adding Potassium Chloride (KCl).
NOTE: Environmental Sensitivities may exclude the use of Potassium Chloride (KCl) in certain areas, please contact your
local AMC Representative to discuss alternatives.
