Product Description
High-temperature resistant emulsified gilsonite additive is a specially modified, naturally derived asphalt additive designed to provide efficient filtration control and wellbore stabilization in water-based drilling fluids. Through a unique surface-charging process, this high-temperature resistant emulsified gilsonite additive achieves homogeneous dispersion and long-term colloidal stability, preventing delamination and settling in the mud system. Its engineered softening point range (250–420°F) ensures consistent performance across varied temperature conditions, making this high-temperature resistant emulsified gilsonite additive particularly suitable for demanding high-temperature drilling applications.
The product actively penetrates micro-fractures and pore networks, forming an effective filming, sealing, and plugging barrier that strengthens wellbore walls, minimizes shale sloughing, and significantly reduces fluid invasion. The unique emulsification technology enables the additive to maintain stable performance in high-salinity environments while providing excellent wellbore strengthening capabilities through its particle size distribution and deformability characteristics.
Applications/Functions
Controls HPHT fluid loss and enhances lubricity in water-based muds
Stabilizes sensitive shale formations and reduces risk of wellbore collapse
Functions effectively across low- to high-temperature intervals
Seals microfractures and reduces differential sticking potential
Improves wellbore stability in tectonically stressed formations
Enhances drilling efficiency in depleted reservoir sections
Advantages
Thermally stable above 400°F (204°C)
Rapidly forms temporary seals to preserve reservoir integrity
Promotes a thin, tough, and low-permeability filter cake
Compatible with common drilling fluid additives without disrupting mud properties
Exhibits high dispersion stability and true softening characteristics
Improves wellbore lubricity and reduces torque and drag
Environmentally acceptable compared to synthetic alternatives
Cost-effective solution for wellbore strengthening applications
Technical Mechanism
The additive functions through a combination of physical sealing and chemical inhibition mechanisms. The emulsified particles deform under differential pressure to seal fractures, while the surface-active components adsorb onto shale surfaces to prevent hydration. The product's thermoplastic nature allows it to adapt to changing wellbore conditions while maintaining effective sealing performance.
Typical Properties
Appearance: Black free-flowing powder
Softening Point: 250–420°F (121–216°C)
Specific Gravity: 1.13
Particle Size: 90% passing 200 mesh
Moisture Content: ≤ 3%
Bulk Density: 0.7–0.9 g/cm³
Packaging & Storage
Available in 25 kg multi-ply paper bags with inner polyethylene lining. Store in a cool, dry environment away from direct sunlight and moisture sources. The product maintains stability for 24 months when stored under proper conditions.
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