Product Description
ADIHEM weighting material is ground Hematite and meets API Specification 13A Section 8 for drilling fluid Hematite. It is used to increase the density of drilling fluids to control formation pressures. ADIHEM weighting material has a specific gravity of 5.1 and can be used to increase the density in oil-and water-based drilling fluids up to 25 lb/gal (3.0 SG). ADIHEM weighting material has a higher specific gravity than barite, and so requires less total product to achieve the same fluid density, but tends to be more abrasive than barite weighting material.
Applications/Function
- Helps increase the density fluids up to 26 lb/gal (3115 kg/m3 )
- Helps control formation pressures
- Helps stabilize the borehole
Advantages
- Has a higher specific gravity than barite
- Has a lower attrition rate than barite
- Environmentally responsible and nonmagnetic
- Helps contribute a lower solids content by volume than a comparably weighted barite drilling fluid
Typical Properties
- Appearance Reddish-brown powder
- Bulk density, compacted 127lb/ft3 (2034 kg/m3)
- Bulk density, uncompacted 168lb/ft3 (2691 kg/m3)
- Specific gravity 5.1
Recommended Treatment
Add as needed to increase weight of drilling fluid. Use the following weight-up formulas for oil-based and water-based systems.
For 1 bbl starting volume
X = 1682 (Wf – Wi)/(40.1 – Wi)
For 1 bbl final volume
X = 1682 (Wf – Wi)/(40.1 – Wf)
Where
X= ADIHEM weighting material required, lb/bbl
Wi= Initial mud weight, lb/gal
Wf= Final desired mud weight, lb/gal
Note: Oil muds prepared with ADIHEM weighting material will help exhibit lower electrical stability readings compared to those muds formulated with barite. This does not denote lower emulsion instability but conductivity of the iron-based materials found in hematite.
Packaging
ADIHEM weighting material is packaged in 50 kg HDPE Bags, 1 ton jumbo bags with liner and in bulk.
