Attapulgite, also known as palygorskite, can be used as a viscosifier and shear strength improving agent with a great ability to lift cuttings in saltwater drilling muds.
Bentonite is a colloidal clay mineral that swells when exposed to water and can be used to thicken and reduce the specific gravity of drilling mud, thus reducing fluid loss to formations.
Calcium sulfate hemihydrate is a drilling mud additive that mitigates loss circulation by increasing the drilling fluid viscosity. Bisley supplies both alpha and beta calcium sulfate hemihydrates.
Cellulose ethers are drilling mud additives that mitigate loss circulation by increasing the drilling fluid viscosity. Bisley supplies a full range of CMCs, HECs and HPMCs.
Gilsonite is used as a fluid loss additive in oil-based muds, it also has shale stabilization properties. Bisley also offer a water-based mud compatible gilsonite named Gilsonite DG.
PAC is used as a mud stabilizer and fluid loss controller, particularly effective in saltwater brines. It has excellent thickening, stabilizing and suspending properties. It has excellent resistance to high temperatures, high salt concentrations and varying pH. Two high viscosity (HV) grades and two low viscosity (LV) grades are available.
Sepiolite can be used as a viscosifier and shear strength improving agent with a great ability to lift cuttings in saltwater drilling muds. It can improve the stability and performance of bentonite at high temperatures by reducing bentonite flocculation.
Xanthan Gum is a drilling mud additive that mitigates loss circulation by increasing the drilling fluid viscosity. Xanthan gum has good acid, alkali, salt tolerance, and can significantly improve the penetration and the ability of suspended solids in the slurry to reduce pressure in the drilling process.
