Cementing
For more than 50 years, the industry has depended on Gilsonite® uintaite as a lost circulation material and a critical component for primary cementing operations in some of the world’s toughest drilling environments.
Adding Gilsonite® during cementing operations enhances the characteristics that are critical to effectively cementing the casing, isolating hydrocarbon formations and preventing annular gas flow.
With its unique physical and chemical properties, Gilsonite® uintaite provides a range of important benefits in slurry and set cement that are unmatched by any other single additive.
Cement slurry benefits
- Increases yield
- Reduces slurry weight
- Controls free water
- Lowers slurry water ratio
- Promotes favorable rheologies resulting in lower ECDs
- Prevents lost circulation
- Scours wellbore/enhances mud removal
Set cement benefits
- Maintains compressive strength, unlike coal or fly ash
- Increases flexibility
- Reduces cracking
- Heals microfissures
- Reduces permeability
- Strengthens bond to the formation and the casing
- Reduces environmental risk
- Assures zonal isolation
Gilsonite® eliminates the problems of free water
By controlling free water, Gilsonite® uintaite helps stabilize slurry and eliminates the need for – and cost of – additional free-water-control agents. As a lost circulation material, it also improves zonal isolation by preventing water channeling on the upper side of the wellbore.
Self-healing properties help maintain zonal isolation
Gilsonite® uintaite is flexible, deformable, swellable, impermeable and non-porous. These characteristics give Gilsonite® self-healing properties that can plug induced microfissures in the cement sheath.
Cementing Product Overview
G-Bond Tech Sheet
