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).