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Chromium-free sulfonate brown coal

Add:liangdu industrial park, lingshi county, Shanxi Province.
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Chromium-free sulfonate brown coal

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index

Water content (%) ≤

18.0

PH value

8.0-11.0

Water-soluble dry base humic acid (%) ≥

50.0

Chromium ion color reaction

No reaction

 

Room temperature performance

High temperature performance

Apparent viscosity, mpa.s

≤8.0

≤10.0

Medium pressure filter vector, ml

≤9.5

≤10.5

Drop viscosity, (%)

≥75.0

≥80.0

Lmin static force, Pa

≤1.0

≤1.0

High temperature and high pressure water loss, ml

≤25.0

Product introduction

Sulfonated brown coal SMC is a derivative of brown coal humic acid, which is obtained by the synthesis of brown coal after alkalization, sulfonation, and cross-linking of chromium salts at appropriate temperatures. The appearance is dark brown powder. It is a cheap and efficient mud treatment agent, which is used as a viscosity reducer and fluid loss inhibitor in fresh water drilling fluid with excellent high temperature resistance. It can be used in various water-based drilling fluid systems directly and can be used in combination with a variety of treatment agents. General dosage is 3-5%.

Usage methods

1. This product has the dual effect of reducing fluid loss and viscosity reduction

2. With excellent temperature resistance, it can resistant 200-220 °C high temperature, especially suitable for using in deep wells

 

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