Henan Kingway Chemicals Co., Ltd.
Main products:Aluminum hydroxide,Rubber Antioxidant IPPD,Polyaluminium PAC,Synthetic Calcium Aluminnate Slag,amorphous calcium aluminate
Contact Us
  • Contact Person : Mr. LIU Randall
  • Company Name : Henan Kingway Chemicals Co., Ltd.
  • Tel : 86-371-65336572
  • Fax : 86-371-65336188
  • Address : Henan,Zhengzhou,B908, Xingye Mansion, No. 22, Nongye Rd.
  • Country/Region : China
  • Zip : 450008

Calcium carbonate powder as drilling weighting materials

Calcium carbonate powder as drilling weighting materials
Product Detailed
LC material or weighting material in completion and workover fluids; Nontoxic, Odorless, no-radiation friendly to environment


Calcium Carbonate powder is pure calcium carbonate, CaCO3.  This material is a naturally occurring mineral and contains a small quantity of quartz, crystalline silica. Prolonged and repeated exposure to concentration of crystalline silica exceeding the maximum exposure limit may lead to chronic lung disease such as silicosis.

Physical and chemical properties

Appearance: White /off -white powder 

Odour: Odourless.

Specific gravity, g/ cm3: 2.7

Bulk Density, kg/ m3: 900 - 1000

Solubility: Insoluble in water; soluble in hydrochloric acid (HCl).

Specification for calcium carbonate powder used in oil drilling fluid



Specific gravity, g/ cm3

2.7 at least

Purity as CaCO3 (%)

90.0 at least

Insoluble in HCl,%

10.0 at most

Soluble in water, %

0.10 at most

Fineness, 76μm,%

3.0 at most

We can also supply

Superfine heavy calcium carbonate, 96%

Superfine Active Calcium Carbonate

High white light calcium carbonate

Any need, please don’t hesitate to contact us to hear how our chemical products will lower your costs and maximize your productivity.

Please feel free to contact me on more information.

Thanks & Best regards,

Bob Chang (Mr.)

Contact:bob at hnkingway dot com

Henan Kingway Chemicals Co., Ltd.

Calcium carbonate powder as drilling weighting materials

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