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CMC-LV (Low Viscosity Sodium Carboxymethyl Cellulose)
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CMC-LV (Low Viscosity Sodium Carboxymethyl Cellulose)

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Introduction

 CMC-LV is a technical-grade low-viscosity sodium carboxymethyl cellulose used to reduce filtration in fresh water and seawater mud systems up to 250°F. It is less effective in brines and saltwater and is not generally recommended to be used if the salinity exceed 50,000 ppm.  CMC-L is used in high-viscosity, high solids or heavily weighted fluids and produces only slight increases in viscosity. Subject to bacterial degradation, a biocide should be used to prevent fermentation.  CMC-L treated systems should be pretreated with either sodium bicarbonate or possibly citric acid prior to drilling cement.

Applications/Functions

Control filtration rates with minimal viscosity increase in freshwater and seawater mud systems

Deflocculate some seawater muds when used in low concentrations

Advantages

Temperatures stable up to 250°F

Widely available and an economic source of polymer fluid-loss control

Concentrated chemical, very effective at small treatment levels

Typical Properties

Appearance

White powder

Specific gravity

1.59

pH (5% aqueous solution)

 9-11

Recommended Treatment

Freshwater: 0.5-1.5 ppb

Seawater:  2-3 ppb

Add slowly through a mixing hopper at a rate of 10-20 min/sack

Package

25 KG SACK

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Dongying City Dayong Petroleum Additives Co.,Ltd.

Add:South Yongxin Road, Kenli County, Dongying City 

TEL:0546-8741007 

TEL: 18654646911 Ms Yang 13780771900  Mr Su 

E-mail:dysyhy@126.com