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THE UNIDIRECTIONAL PRESSURE SEALANT AGENT (DF-1) FOR DRILLING FLUI
Description
DF-1 is a high molecular plant fiber shattered into different sizes, then it is organically modified together with a certain amount of regulator. It has the characteristics of small routine dosage, good anti-caving and plugging effect as well as excellent filtration loss-reducing effect, so it is a highly efficient mud treating agent.
Property index
Table 1 Physical & Chemical Properties
Items
Appearance
Density,g/cm 3
Screen margin (on 0.45mm screen) ,%
PH
Moisture %
Index
Yellowish or gray powder
1.25 ～ 1.55
≤ 10.0
5.5 ～ 8.0
≤ 15.0
Table 2 Drilling Fluid Properties
Items
API apparent viscosity, mPa·s
Filtrate loss,mL(30min)
Closed filtration,mL
PH
Base mud
6 ～ 9
19 ～ 21
Total loss(1min)
9 ～ 11
Base mud+sample
6 ～ 9
≤ 19
≤ 40(30min)
6 ～ 10
Features and usage
1. Good anti-caving and sealing effect; effectively maintain the rule hole; Reduce leakage mud.
2. Improve mud cake quality; reduce filtration loss.
3. Exert little influence on mud density and rheology behavior.
4. Compatible with other additives.
5. Good adaptability to different formation.
6. Non-poison, contamination free .
7. The common dosage is about 1.0 ～ 3.0%.
Notes
Stored in a dry and ventilated place and kept off rain and sun.
Package
This product is packaged in complex kraft paper sacks (three-in-one) with waterproof plastics as lining.(Net weight 25kg per sack).
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