Drilling
Product Description
Bentonite is the main component of water based drilling fluid, which is a vital element of drilling process. Bentonite is used as a mud constituent for oil and water well drilling. Its roles are mainly to seal the borehole walls, to remove drill cuttings and to lubricate the cutting head.
Bentonite has high swelling and good colloidal nature, which can increase the viscosity of suspension in the drilling mud and also can increase the lubrication of drilling, as well as for the rig-freeing agent. Drillers pump slurry of Bentonite, water and other additives down through the drill string. The fluid rises back up along the outside of the drill string, carrying the drill cuttings (soil and crushed rock) out with it. The binding of Bentonite to the cuttings aids in the removal of this debris. It is useful in the sealing of drill holes to avoid drill hole ruptures and seepage.
Our Bentonite is developed from selected raw materials with optimum treatment of chemicals to provide best quality product. Main advantages of Our Bentonite are :
- · Bottom hole cleaning & removal of cuttings to the surface
- · Controlling high pressure zone
- · Cooling and lubricating drilling equipment
- · Forming bore hole wall supporting filter cake
- · Promotes bore hole stability
- · Low filter loss
Bentonite Drilling grades as per API standard
API 13 – Section 9 |
|
Property |
Typical Value |
Viscometer dial reading at 600 r/min |
30 Minimum |
Yield Point/Plastic Viscosity Ratio |
3,0 Maximum |
Filtrate Volume |
15,0 Maximum |
Residue of diameter > 75µm |
4,0 % Maximum |
API 13 – Section 11 (OCMA |
|
Property |
Typical Value |
Viscometer dial reading at 600 r/min |
30 Minimum |
Yield Point/Plastic Viscosity Ratio |
6,0 Maximum |
Filtrate Volume |
16,0 Maximum |
Residue of diameter > 75µm |
2,5 % Maximum |
We also have specially developed high viscosity grades for modern trenchless drilling practices like HDD & vertical drilling, HDB, tunneling, etc.