Powder Polymer In Borehole Drilling.

CORE FUNCTIONS IN BOREHOLE CONSTRUCTION

• Wellbore & Wall Stabilization: Forms a protective, thin polymer skin along the borehole walls. Binds loose sand and gravel together to prevent sidewall cave-ins without relying on thick, heavy clay filter cakes.

• Clay & Shale Encapsulation: Coats reactive clay and shale formations. Prevents water hydration, stopping sticky clays from swelling, softening, dispersing, or seizing the drill bit and drill pipe.

• Viscosity & Cuttings Removal: Provides shear-thinning viscosity: thins under rotation to reduce pump head pressure, but thickens when circulation pauses to keep rock cuttings suspended and lift them to the surface.

• Lubrication & Fluid Loss Control: Reduces rotational torque and drag on the drill string. Seals micro-fractures in porous strata, minimizing drilling fluid loss into surrounding formations.

AMC CR 650™ is a powder polymer. Specifically, it comes in the form of dry, white, free-flowing granules (as seen packaged in the green 15 kg bucket in your image).

Key Characteristics:

• Form: Dry granular powder.

• Chemical Type: High molecular weight polyacrylamide / acrylic polymer.

• How It's Used: It is slowly mixed into fresh water using a high-speed agitator or hopper to dissolve and hydrate, creating a viscous drilling fluid.

Field Mixing Best Practices.

• Add Powder to Water: Always sprinkle powder polymer slowly into a high-shear mixer or hopper filled with water. Never pour water directly onto dry polymer to avoid non-dissolved "fish eyes."

• Water Quality & pH Control: Maintain water pH between 8.5 and 1 0.0 using soda ash. Treat hard water (calcium > 200)