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 250
οC 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.