Gilsonite uintaite forms a physical and chemical bond with permeable formations, creating an effective seal to prevent the passage of drilling fluid. By uniquely functioning as both a malleable and solid plugging agent, Gilsonite controls fluid loss and seepage, prevents lost circulation and protects reactive and low-reactive shale surfaces, even at elevated bottomhole temperatures.     

Adding Gilsonite to an OBM, SBM or WBM strengthens the well by:

• Reducing pore pressure transmission and sealing micro-fractures in shale and low-porosity sands
• Keeping interbedding formations intact
• Developing effective filter cake
• Providing a “smear effect” that creates a continuous protective sealant along the wellbore wall.

Gilsonite is the only drilling fluid additive that provides all of these benefits:

• Controls fluid loss and seepage.
• Stabilizes shales.
• Prevents lost circulation.
• Strengthens the wellbore to increase wellbore stability.
• Minimizes differential sticking.
• Promotes effective filter cake development.
• Performs in oil- and water-based drilling muds.
• Performs in HP/HT environments.
• Minimizes HSE risks.