Calcium Carbonate

Calcium Carbonate is a compound with formula CaCO3 that occurs naturally as limestone. Ground and sized calcium carbonate is used to increase mud density to about 12 lbm/gal [1.44 kg/m3], and is preferable to barite because it is acid-soluble and can be dissolved with hydrochloric acid to clean up production zones. Its primary use today is as a bridging material in drill-in, completion and workover fluids. Sized calcium carbonate particles, along with polymers, control fluid loss in brines or drill-in, completion and workover fluids.
CaCO3 is used as a temporary plug formulated with graded granules or flakes of calcium carbonate that are generally circulated into place as slurry and allowed to settle out. Calcium carbonate plugs commonly are used to isolate lower production zones, either to enable a column of well control fluid to be placed, or to provide some protection for a lower zone while treating upper zones. Because of their high reaction rate with hydrochloric acid, calcium carbonate plugs are easily removed using common acidizing materials and equipment.

Packing: in 500 kg

PROPERTY

REQUIRED

Purity

> 98 % w/w

Density

> 2.75 s.g.

Acid solubility ( 15 % HCL at 45 c )

> 98 % w/w

Silicon, as SiO2

< 0.20 %

Moisture

< 0.05 %

PARTICLE SIZE RANGE

D10

3.5 - 4.5 micron

D50

10 - 14 micron

D90

20 -30 micron

Material Safety Data Sheet

1. Other Names

2. SAP No

3. Supplier

4. Composition

Marble, Calcite.

1001129965.

Oman Drilling Mud Products Co.LLC.

Single compound, purity may very.

5. Appearance and odour

6. Usage

7. Physical properties at 20 C, 1013 mbar

8. Important characteristics

Powder or crystalline, off white, odourless.

Weighting material, fluid loss control material.

Density (kg/m3): 2642 (bulk). 
Boiling Point (°C): 
Melting Point (°C): 82.5 (decomposes)
Flash Point (°C):
Autoignition temp (°C):
Flammability limit (%v/v):
Rel. vapour density (air=1): 2.9
Vapour pressure (mbar):
Kinematic viscosity (mm2/s):
Solubility in water (kg/m3): slightly soluble insoluble.
pH: 
Particle size (micron): 1000-5000.

Incompatibilities: acids, ammonium salts, aluminium, alum, fluorine, magnesium.
Occupational exposure limit TLV (ACGIH): TWA 10mg/m3 (nuisance particulates).

9. Safety hazards

10. Safety precautions

11. Fire extinguishing agents

12. Fire fighting precautions

Fire: non-combustible, calcium oxide fumes evolved.
Stability: stable under normal condition.

None

No limitations

Protective clothing.

13. Health hazards

14. First aid

15. Personal protection

16. Environmental hazards

Inhalation: slight or no effect, nuisance dust.
Skin: no effect.
Eyes: slight or no effect, nuisance dust.
Ingestion: none.

Remove to fresh air.
Wash with water, use soap. 
Flush with water, obtain medical attention if eye irritation persists.
Obtain medical attention.
DO NOT INDUCE VOMITING.

Normal usage: chemical mono-goggles, PVC gloves.
In the event of inhalation risk wear general purpose dust respirator NPF 7 - 10.
Spill control/clean-up: as above.

Insignificantly toxic to aquatic life.

17. Environmental precautions

18. Spillage mitigation (see also 15)

19. Disposal options

20. Storage

Avoid gross contamination of soil and water.

Scoop up and collect in container, disperse.
remainder with plenty of water.

Preferred: dispose of at (controlled) landfill site.
Acceptable: as above.
THE DISPOSAL OPTION CHOSEN MUST BE ACCEPTABLE WITHIN THE REQUIREMENTS OF OPERATIVE LEGLISATION.

Separate from acids, ammonium salts, aluminium, fluorine, magnesium, avoid dust.

21. Packing and labelling

22. Supplementary information

Multiwall sacks or big bags. 
UN number: 
Label: no label required.

Health: 
Safety: 
Environment: