china supplier bentonite API & OCMA
- 2000 Ton / Tons per Month
- Xingang or as requested
- T/T Credit Card
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Product Details
Place of Origin | Hebei, China | Brand Name | XINHUI | |
Application | drilling fluid | Shape | powder | |
Dimensions | drilling grade |
Product Description
china supplier bentonite API & OCMA
What's Bentonite?
Bentonite is a clay minral predominantly consisting of mineral Montmorillonite mixed
with some related minerals like Nontronite and Beidelite. These are three layered
aluminosilicate with molecules of water between layers. For natural Sodium Bentonite,
exchangeable sodium cations are predominant, rather than other cations like calcium,
magnesium etc. Similarly in Calcium Bentonite, calcium cations are predominant.
Generally speaking, the sodium variety has high swelling and gelling properities
as well as good viscosity and liquid limit. So the properties of Sodium Bentonite is
better than Calcium Bentonite. Sodium Bentonite is more popularly used in industries.
API standard
item | API standard |
Viscometer dial reading at 600r/min | ≥30 |
Yield point/plastic viscosity ratio | ≤3 |
Filtration loss | ≤15ml |
Sieve residue of 75um | ≤4.0% |
OCMA standard
item | OCMA standard |
Viscometer dial reading at 600r/min | ≥30 |
Yield point/plastic viscosity ratio | ≤6 |
Filtration loss | ≤16ml/30min. |
Sieve residue of 75um | ≤2.5% |
Moisture | ≤13% |
Advantage:
Bentonite has the characteristic of high mud yield, high gel strength and low shear.
It can improve the borehole stability especially in unconsolidated formation. The
high performance and low concentration of bentonite can reduce the dosage,
cost and intensity of labor.
Application:
Used for oil and gas well drilling and civil-engineering including drilling fluid system for
horizontal directional drilling, fluid solution for diaphragm walls and piles, lubrication
fluids for micro tunneling or pipe jacking, drilling fluids for water well, exploration and
mining, fluid solution for shield tunneling.
relative knowledge for reference:
Difference between Sodium Bentonite and Calcium Bentonite for drilling fluid application:
Bentonite is often used as the material of drilling fluid. The mud yield of sodium bentonite
is higher and is commonly used in drilling industry. Calcium bentonite can't be used as
the material of drilling fluid before modification treatment.
Bentonite clay grade for water-base drilling fluid:
A) sodium bentonite API standard, commonly used in drilling industry
B) modified bentonite OCMA standard
C) drilling grade (used in drilling fluid for plugging purpose)
Contact Us
- Shijiazhuang Xinhui Mineral Products Co., Ltd.
- Contact nameJinzhu Hao Chat Now
- Phone0086-311-67594422
- AddressNorth Yanchuan village, Nanyanchuan Town, Lingshou county, Shijiazhuang, Hebei
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