Calcium Carbonate

FOB Price: US $100-500 / Ton
Min. Order: 20 Tons
Min. Order FOB Price
20 Tons US $100-500/ Ton
Payment Terms: L/C, T/T
Calcium Carbonate

Product Description

Quick Details
Classification: Carbonate
Type: Calcium Carbonate CAS No.: 471-34-1
Other Names: Carbonic acid calcium salt; Limestone; Marble
MF: CaCO3 EINECS No.: 207-439-9
Place of Origin: China (Mainland)
Grade Standard: Industrial GradePurity: 80%-85%
Appearance: Fine, white powder
Application: Oil drilling
Model Number: Orenc
Solubility: 0.001 gm in 100 ml water, soluble in dilute acids
Density: 2.7 - 2.95
Melting Point: 825 (1517F)Odor: Odorlessrelative molecular weight: 100.09
Packaging & Delivery
Packaging Detail: Calcium Carbonate is packed in 25, 50, and 1000 Kgs HDPE sacks with polyliner.
Delivery Detail: 15days after confirm the order
Specifications
It is a high purity ground marble. It is used as a bridging and weighting agent in drilling, work over and completion fluids.
CaCO3 powder / calcium carbonate (F, M, C)

1. Advantages
1) Acid-soluble, high-purity product which minimizes formation damage.
2) High hardness, Calcium Carbonate resists particle-size degradation.
3) Essential inert, minimum effect on fluid properties.
4) It is preferred over limestone because it is generally more pure with a higher hardness and it provides better acid solubility.

2. Application
Calcium Carbonate is an acid soluble additive used for bridging and weighting agent for a controlling fluid loss and density. As a bridging agent and fluid loss-additive, normal concentrations are in the 10 to 50lb/bbl range (29 to 143 kg/m3).
Calcium Carbonate can also be added on a periodic basis for seepage control to limit losses (lost circulation and leak-off) to high permeability formations. It is particularly effective when drilling with high differential pressures caused by an overbalanced condition or when drilling depleted zones. Treatments range from 2 to 10 sacks per hour when used a preventative measure.
For depleted zone drilling or induced fracture applications, Calcium Carbonate is most effective when used in combination with Graphite additive.

3. Specification
Item
Specification
Purity 80-85%
Physical Appearance White Powder
Specific Gravity 2.7 Min
Solubility in 15% HCl 98% Min
Grade Size Range (BSS mesh)
Coarse 30-80 Mesh
Fine 300 Meshes
Medium 150 Meshes

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