Hematite
Hematite
Hematite is a mineral consisting of iron oxide. It has a deep red to gray-black color and a metallic luster. It is widely used as a pigment, jewellery material, and in various industrial applications.
Hematite powder is used in oilfield drilling operations for the following applications:
- Weighting Agent: Hematite powder is often used as a weighting agent due to its high specific gravity.
- Density Control: Drilling fluid needs to be precisely controlled to balance pressure from surrounding formations.
- Rheological Properties: Can affect the rheological properties of the drilling fluid, including viscosity and gel strength.
- Bridging Agent: Can act as a bridging agent in drilling fluids. It helps to form a filter cake on the wellbore wall.
- Lubrication and Cooling: During drilling, the drilling fluid serves as a lubricant and coolant for the drill bit.
It is an important additive that contributes to safe and effective drilling processes.
Specifications
APM Drilling Grade
Typical Properties
| Fe2O3 | 98 ± 1% min. |
| Specific Gravity | 5.0 min. |
| Oil Absorption | 18-20 ml/ 100gm |
| pH | 4 to 6 |
| Particle Size | 200 mesh 98% min. passing |
