Introduction

Carboxymethyl Starch UL-HTR for Drilling Fluid is water soluble product after alkalization of starch and etherification of chloracetic acid . It can effectively control filtration loss of fresh water and salt water drilling fluids. It has the characteristics of being easily degradable, azymic, little influence on rheology behaviour . It is a cheap substitute of CMC.

Property index

Items		Index
Appearance		Free flowing powder or particle
Moisture ，%		≤12.0
Screening （0.90mm），%		≤10.0
4%salt water FL， m L	Room temperature	≤12.0
	After 150℃/16h	≤12.0
Saturated salt water ， m L	Room temperature	≤15.0
	After 150℃/16h	≤15.0

Features

It can effectively reduce filtration loss of fresh water and salt water drilling fluids.

Good ability of high temperature resistance ,temperature resistance reaches 140℃ .

3、Good compatibility with other additives.

4、No toxicity.

5、Routine dosage is 0.3~0.5%.

Notes

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

Package

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