Specialist contractors use specific drilling fluids in the construction of tunnels and pipe jacking.
SNF hydrosoluble polymers are used extensively as performant additives when excavating or drilling to boost properties of slurry, foam, disposal muck, backfill and injection grouts.
The fluids used when digging tunnels help to maintain continuous support of the excavation, carry cuttings to the surface, reduce friction and improve lubrication.
When using TBM (Tunnel Boring Machine) technologies, Slurry Shields or EPBM machines, there is an increasing demand for innovative additives to enhance production output while limiting impact on the environment.
Flocculants and coagulants for all types of water treatment and sludge dewatering.
Flobent Bentonite extenders and modifiers bring low-grade betonies into or above API required specifications.
These thinners and dispersants function as a deflocculant, reducing the attraction of clays and drilled solids, which produces high viscosity and gel strengths.
These powder or liquid water retainers absorb large quantities of water or help to reduce fluid losses.
These long chain, high molecular weight polymers are used to encapsulate drilled solids to prevent dispersion and coat shale for inhibition. They can also be used to increase viscosity and reduce fluid loss, or even replace bentonite in certain application such as bored piling.
