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Metso 66
Product #23223
Metso 66 is a cement pre-flush additive designed specifically for the removal of oil-related drilling fluids from the wellbore. This silicate-based material contains a superior detergent package which quickly breaks down and emulsifies oil-muds for rapid and complete cleanup.
Secondly, Metso 66 water-wets the pipe and formation surface, leaving behind a soluble silica coating, which enables rapid cement gel strength development and improved cement bond, thereby reducing slurry fallback, fluid loss, lost circulation and potential gas migration.
Application
Metso 66’s unique formulation reduces or eliminates the need for transport or handling of any flammable or hazardous fluids on the rig site (diesel fuel, solvents, and other related components).
By using Metso 66, disposal costs are further reduced. The recommended loading is 5-6 bags of Metso 66 per m³ of water (fresh or sea water). Laboratory testing is recommended to determine the precise loading for general use or specific well situations. Fluid contact time within the wellbore is most important.
Sufficient fluid volume with the recommended Metso 66 loading is necessary for complete removal of oil-based materials and reversal to a water-wet condition. This volume will vary depending on depth, and hole-pipe configuration. Metso 66 can also be used as a spacer for water- based mud removal to improve cement-to-pipe and cement-to-formation bonding.
Mixing & Handling
Metso 66 mixes easily into cold water with moderate agitation. Avoid excessively humid conditions. Store in a cool, dry place. Metso 66 is corrosive. Wear the appropriate safety goggles and protective equipment when handling this product.
Physical Properties
Appearance: Tan granules
Bulk Density: 840-900 kg/m³
Chemical Properties
Solubility: Soluble in water
pH: 14.0 (1% in fresh water)
Packaging & Controls
This product appears in:
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