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Bentonite for Drilling 

We can supply API Bentonite, OCMA Bentonite, Drilling Bentonite

Drilling Bentonite has the great expansibility under water, has the good colloid properties and can heighten the 

suspension of liquid viscosity. As a result in drilling mud, Bentonite can increase the drilling tools lubricity, 

Cleaning produces in the process of drilling cuttings, be widely used to complex geological structure formation 

drilling construction, to prevent hole accidents.

Drilling Bentonite are known for its good performance, strong water hydration expansion, big cation exchange 

capacity and high made pulp rate

 

Features & Benefits 

Our drilling with sodium bentonite strict implementation of the Chinese National Standards and the United States 

API grade: has a good suspension, thixotropy and filtration a small amount of mud performance is good, the 

preparation of convenient, easy to adjust the drilling fluid weight and other characteristics, is essential for deep 

and ocean drilling an ideal base material.

 

Recommended Application

Drilling Bentonite has a big expansion after meets water, has a good colloidal nature, can increase the viscosity of 

suspension in the drilling mud when used, can increase the lubrication of drilling, cleaning the debris during drilling, 

as well as for the rig-freeing agent. So which Drilling Bentonite is widely used in complex geological formation drilling.

 

Specification

NAME OF INDEX

NAME OF   PRODUCTION

API

OCMA

Horizontal Directional Drilling

Viscometer Dial   Reading   at 600 rpm ≥

30

30

40

Filtrate   Volume,cm3 ≤

15

17

15

Yield Point /  Plastic  Viscosity Ratio ≤

1.5×pv

6×pv

1.5×pv

Moisture,%

10

12

10

Residue Grater than 75   Micron,% ≤

4.0

4.0

4.0

200 mesh

85-90%

85-90%

85-90%

The mentioned data of analysis just for reference, the actual result depends on physical material loaded.

Technology index

Bentonite quality standard reference GB/T20973-2007 «bentonite»