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General Introduction

Sulfonated Tannin SMT is the outcome product of sulfonation and neutralization reaction of tannin powder. It has the characteristics of high rate of thinning and strong high temperature ability, so it is highly effective mud treating agent.

Properties

Fig. 1

Item

Index

Appearance

Dark brown powder

Moisture ,%

≤18

Base mud

Drilling fluid property

Normal temp.

After 160℃ of maintenance

100r/min viscosity , mPa.s

45 ~ 65

90 ~ 120

A.V. , mPa.s

14 ~ 20

25 ~ 34

Y.P. , Pa

7 ~ 12

16 ~ 22

1 min gel strengths, pa

7 ~ 12

8 ~ 12

Add 3% sample (base mud)

100r/min viscosity, mpa.s

≤10

≤12

AV, m pa.s

≤8

≤10

YP, pa

≤2

≤2

1 min gel strengths, pa

≤1

≤1

Features

1. Apparent ability of thinning, improving drilling speed.

2. High temperature resistance, suitable for all kinds of wellbore.

3. Good compatibility with other additives and suitable in both non-dispersed and dispersed drilling fluids.

4. Simple application method on site; directly added or mixed with water.

5. No toxicity no pollution, meeting environmental requirements.

Method of application

SMT has good cooperation with all kinds of copolymers additives. Amount of reference is 1.5~2.5%, the amount is up to condition under well.

Notes

This product should be stored in a cool, ventilated place to avoid the sun and rain.

Package

It is packed in kraft paper sacks, with net weight 25kg per sack.