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Description
FA-367 is a water-soluble high molecular weight amphoteric copolymer with different branches bearing various anionic, cationic and nonionic groups on its acrylic main chain. It is a high-agent to deal with the mud. Easily to solute in water, the rate of absorption is very fast in the clay surface, strongly coating, salt-resistant, calcium-resistant, relatively low cost and so on.
Quality indices
Table 1 Physical & Chemical Properties:
Items
Index
AV, of 1% FA-367 mPa·s
≥ 30.0
Moisture %
≤ 9.0
Oversize(on 0.9mm screen), %
≤ 15.0
PH
7.5 ～ 9.0
Table 2 Drilling Fluid Properties:
Items
AV
mPa·s
PV
mPa?s
API FL
ml
Fresh water mud with 4% bentonite
Base mud
8 ～ 10
3 ～ 5
22 ～ 26
2.0g/l FA-367
≥ 25
≥ 8
≤ 15
Compound salt/water mud with 15% bentonite
Base mud
4 ～ 6
2 ～ 4
52 ～ 58
7.0g/l FA-367
≥ 15
≥ 10
≤ 10
Table 3 Properties to Inhibit Bentonite Dispersion
Items
AV raising rate after Rolling 160 ℃ , %
Fresh water mud with 4% bentonite +20g bentontite
450 ～ 700
Fresh water mud with 4% bentonite +0.3%FA367+20g bentontite
≤ 250.0
Performances and Usages
? Improve the rheological property of drilling fluid. Possessed good cutting carrying capability.
? Strongly inhibitive, to inhibit clay and shale dispersion and swelling.
? Good water-soluble, compatible with other additives.
? The recommended concentration is about 0.3~1.5%.
Notes
Stored in a dry and ventilating place and kept off rain, indirect exposure under sun's rays.
Package
Package: This product is packaged in complex kraft paper sacks (three-in-one) with waterproof plastics as lining.(Net weight per sack:25kg).
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