Oilfield Auxiliary - Hydrolysis polyacrylnitrile, calcium salt

I.Characteristics: pale yellow or offwhite powder with good water solubility

II. Composition: copolymer of nitrile, amide, calcium carboxyl and sodium carboxyl, etc.

III. Use: mainly used in filtration reducer for nondispersable low-solid phase polymer drilling fluid, capable to improve quality, temperature resistance, salt pollution resistance and flow patten, etc of mud cakes.

IV. Quality standard: Sy5063-85

1. Properties and indexes of drilling fluid:

Item Value
Fresh water base solution Filtration, ml 25±2 
Apparent viscosity, mPa·s ≤ 7.0
Add 2.0g/L of Na-HPAN in fresh water base solution Filtration, ml≤ 13.0
Apparent viscosity, mPa·s ≤ 7.0
Fresh water base solution Filtration, ml 55±3
Apparent viscosity, mPa·s ≤ 8.0
Add 15.0g/L of Na-HPAN in fresh water base solution Filtration, ml≤ 20.0
Apparent viscosity, mPa·s ≤ 10.0

2. Physicochemical standard:

Item Value
Purity % ≥ 68.0
Water content % ≤ 7.0
Calcium content % ≤ 14.0
Finness (passing 80mesh sieve)% 95.0
PH ≤ 12

V.Packing: Packed in polypropylene woven bag lined with polyvinyl plastic bag. Net weight: 25 kg/bag.

VI. Attention: Store in ventilated and dry places. Protect it from moisture and rain.

Oilfield Auxiliary - Hydrolysis polyacrylnitrile, sodium salt

I. Characteristics: pale yellow powder, insoluble in water, aqueous solution is alkaline

II. Composition: outcome of polyacryylonitrile hydrolyzed by solium hydroxide

III. Use: mainly used in filtration reducer for water-base drilling liquid, with viscosity reducting character, capable to resist 250οC in diluted cement slurry.

IV. Quality standard: Sy5062-85
1. Properties and indexes of drilling fluid:

Item Value
Fresh water base solution Filtration, ml 25±2 
Apparent viscosity, mPa·s ≤ 7.0
Add 2.0g/L of Na-HPAN in fresh water base solution Filtration, ml≤ 13.0
Apparent viscosity, mPa·s ≤ 10.0
Fresh water base solution Filtration, ml 55±3
Apparent viscosity, mPa·s ≤ 8.0
Add 15.0g/L of Na-HPAN in fresh water base solution Filtration, ml≤ 13.0
Apparent viscosity, mPa·s ≤ 10.0

2. Physicochemical properties & standard:

Item Value
Purity % ≥ 85.0
Water content % ≤ 7.0
Residual alkali % ≤ 2.5
Finness (passing 10mesh sieve)% 100
Appearance freely flowing granules or powder

V. Packing: Packed in polypropylene woven bag lined with polyvinyl plastic bag. Net weight: 25 kg/bag.

VI. Attention: Store in ventilated and dry places. Protect it from moisture and rain.