Detailed Product Description

Chrome lignosulphonate: 
Specifications: 
1) Appearance: blackish brown powder 
2) Material insulation to water: 2.5% max.
3) Total Ca as CaSO4: 3.0% max. 
4) Total Cr: 4.0% min. 
5) Cr complex: 80% min. 
6) Moisture content: 8.5% max. 

Performance in mud:
1) Stability in high temperature: after 16 hours, the performance mud has no
    change at high temperature between 150 - 160°C
2) Characteristics of anti-salt: it's performance in 4% salt-base mud is better
    than that of ferrochrome lignosulphonate (FCLS) 
3) Rate of dilution: better than FCLS's in same mud
4) It can lower the filtrate loss of mud, and has powerful-electrolytes capacity
    and is suitable to al kinds of muds

Chrome-free lignosulphonate:
Specifications: 
1) Insoluble alkaline material: 2.5% max. 
2) PH value of 2% water solution: 6.0 min. 
3) Total CaSO4: 4.0% max. 
4) Total Fe: 2.0 - 4.0% 
5) Moisture content: 10.0% max. 

Chrome-free lignosulphonate is a drilling mud thinner produced by multi chemical
reactions followed by drying of natural high molecular weight compound, organic
material and harmless metal ions. The product contains no chromium heavy metal and
is ideal for use in drilling at densely populated area and offshore. 

Thinning performance:
Test results indicate the thinning performance in fresh water based mud under normal
temperature is comparable to ferrochrome lignosulphonate (FCLS). At elevated
temperature, it performs better than FCLS in either fresh water or salt-water based
mud, particularly the later. The product is suitable for use in drilling under complex
geological formation, in water with high TDS, or in offshore drilling.

Good fluid loss control properties:
Its major advantage is the thinning effect in drilling mud with high solid content,
and simultaneously controls the fluid loss. Its fluid loss control action is
better than FCLS and the mud cake formed is smooth and compressible, thus beneficial
for well bore protection and fluid loss reduction under high-pressure condition.

Higher retention of solid: 
The product has improved solid retaining capacity due to its excellent thinning properties. Even when the mud is mixed with large quantity of clay while drilling,
the rock scarps can still maintain good mobility. In addition it is capable of withstanding
contamination by calcium, magnesium and sodium electrolytes, making
it an ideal thinning agent for heavy weight mud. 

Recommended dosage:
For salt water and fresh water based mud, a range of 0.5 to 1.0% is recommended depending on the specific conditions. Under special situations such as high solid and metal electrolytes content, a slight increase in dosage is recommended but
not to exceed 2.0%. 

Packing: 
25kg/PP woven bag with PE liner inside

Conveyance:  
Qty/20' FCL: 14MT