Description
Technical Parameters
In the medium and low permeability layer, the filter loss reduction rate reaches 80%, which can effectively seal the micro-cracks and delay and reduce the transfer of drilling fluid pressure. After temporary plugging, the permeability has good recovery and has the effect of lifting the water lock.
Applications/Functions
• Reduces HPHT fluid loss in all oil-based mud
• Improves rheological properties
Advantages
• Stable at temperature above 450°F
• Effective HPHT filtrate reducer in concentration as low as 1-4 ppb
• May be used in conjunction with other fluids loss additive such as amine lignite and gilsonite
• Easily mixed with rapid results
• Allows formulation of deep-water fluids with excellent low temperature tolerance
Typical Properties
• Appearance: White free-flowing powder
• Specific gravity: 1.03
Recommended Treatment
• Add 1-4 ppb for HPHT filtration up to 350°F
• Add 4-6 ppb for HPHT filtration greater than 350°F
