Telephone：manager zhang：13582118730
Manager Liu：13832190992
manager zhang：13643300636
mailbox：huayunhongye@163.com
website：www.huayunhongye.cn
Address: No. 39 Xingze Road, South District, Shenze Economic Development Zone, Hebei Province
1、 Characteristics
The unidirectional pressure sealing agent DF-1 for drilling fluid is a gray yellow powder product composed of various natural fibers, filling particles, additives processed through special processes, with appropriate grading certain processes. After the product is added in drilling, under the action of one-way pressure difference, it can have a good sealing effect on various leaks in the formation. It is easy to use, has good compatibility, does affect the mud performance.
2、 Main performance indicators
Project indicators
Appearance: Light yellow yellow powder
Density, g/cm3: 1.40-1.60
Sieve residue (standard sieve with a pore size of 0.28mm),% ≤ 10.0
Moisture,% ≤ 8.0
Burning residue,% ≤ 7.0
Water soluble matter ≤ 5%
Closed filter vector, ml ≤ 35.0
PH value 7-8
Density change, g/cm3 ≤+0.02
Note: The burning residue item is only used for plant fibers
36-45%, for reference only.
