Hematite
HEMATITE is a high density weighting material. The hematite ore used as a weighting agent in drilling fluids has a mica like crystal structure
ground to a particle size suitable for use in drilling fluids.
Hematite is applicable in all types of drilling fluids, including freshwater, seawater and oil-base muds. It can be used to increase the density of all drilling and completion fluids to 25 lb/gal (3.0 SG).Hematite is most frequently used in high-density, oil-base muds. Fluids weighted with Hematite contain fewer solids by volume than those weighted with barite, making higher mud weights possible. It is especially useful in high-density kill fluids.
The quantity of Hematite required can be calculated using the following formula:
1,750 (w2- w1)
Hematite , lb/bbl= ----------------------
41.66 - w2
Where:
w1= Initial mud weight in lb/gal
w2= Desired mud weight in lb/ga
5,000 (w2- w1)
Hematite, kg/m3 = -------------------------
5.0 - w2
Where:
w1= Initial mud weight in specific gravity
w2= Desired mud weight in specific gravity
Advantage :
regarded as a secondary sulfide scavengerWhen Hematite is used in H2S areas, a high pH should be maintained and an appropriate primary scavenger, should be used.
- Muds contain fewer solids than similar-density barite muds due to the 20% higher specific gravity
- Muds have improved rheological values; generally plastic viscosities are 2 to 30% less than barite muds.
- Use of muds usually results in higher rates of penetration.
- Higher bulk density than barite, consequently more weight is held in the same volume bulk tanks and a smaller volume must be transported to the wellsite.
- Less Hematitethan barite isrequired to achieve the same mud weight, reducing mud costs.
- Has a narrower particle size distri-bution with a larger average particle size as compared to barite.
- A harder mineral than barite, thus more resistant to particle-size degradation.
- Approximately 97% acid-soluble in 15% hydrochloric acid (HCl).Will partially scavenge hydrogensulfide at neutral and low pH levels and
- May be environmentally preferred to barite in certain locations
Physical appearance : Dry – red to brown powder
Particle hardness : 5 – 6 MOHS scale (1-10)
Bulk density :143 lb/ft3 (2,291 kg/m3)
Specific gravity : 5.0
Particle size :<1.5% wt >200 mesh (75 micron)
:<15% wt ~325 mesh (>45 micron)
:<15% wt <6 micron
Soluble hardness :<100 mg/kg
Advantage :
regarded as a secondary sulfide scavengerWhen Hematite is used in H2S areas, a high pH should be maintained and an appropriate primary scavenger, should be used.
- Muds contain fewer solids than similar-density barite muds due to the 20% higher specific gravity
- Muds have improved rheological values; generally plastic viscosities are 2 to 30% less than barite muds.
- Use of muds usually results in higher rates of penetration.
- Higher bulk density than barite, consequently more weight is held in the same volume bulk tanks and a smaller volume must be transported to the wellsite.
- Less Hematitethan barite isrequired to achieve the same mud weight, reducing mud costs.
- Has a narrower particle size distri-bution with a larger average particle size as compared to barite.
- A harder mineral than barite, thus more resistant to particle-size degradation.
- Approximately 97% acid-soluble in 15% hydrochloric acid (HCl).Will partially scavenge hydrogensulfide at neutral and low pH levels and
- May be environmentally preferred to barite in certain locations
Hematite manufacturer supplier distributor in Mumbai, Kandla, Kolkata, Vizag, Chennai, India, Fujairah, Dubai UAE, Muscat Oman, Kenya Africa. Get the best quality of Hematite at a competitive price from us. We have ready stock of Hematite in India, UAE Gulf, Oman, Kenya Africa. Contact us for bulk as well as small orders.