Carboxy Methyl Cellulose(CMC)is synthesized by the alkali-catalyzed reaction of cellulose with chloroacetic acid. The polar (organic acid) carboxyl groups render the cellulose soluble and chemically reactive. The functional properties of Fooding Carboxy Methyl Cellulose(CMC) depend on the degree of substitution of the cellulose structure (i.e., how many of the hydroxyl groups have taken part in the substitution reaction), as well as the chain length of the cellulose backbone structure and the degree of clustering of the carboxymethyl substituents.
Oil Drilling Grade CMC
Physical and Chemical Indexes of Sodium Carboxymethyl Cellulose for Drilling Fluid.(Perform SY5093-92 Standard)
| |
LV-CMC |
MV-CMC |
HV-CMC |
| Appearance |
White or light yellow powder, freely flowable |
| Replace degrees(D. S) |
0.80 min |
| Purity |
80% min |
85% min |
95% min |
Viscosity 2%
(in 2% solution at 25 centigrade) |
200-500 mpa.s |
600-900 mpa.s |
1000-1800 mpa.s |
| Size(60 head) |
80% |
| Moisture (%) |
10% max |
| PH |
7.0-9.0 |
7.0-9.0 |
6.5-8.0 |
Category |
Item |
Index |
| Distilled water |
Salt water |
Saturated salt water |
| Oil-based mud |
Filtration loss,ml |
60±10 |
90±10 |
100±10 |
| Apparent viscosity,mpa.s |
≤6 |
≤6 |
≤10 |
| PH |
8.0±1.0 |
8.0±1.0 |
7.5±1.0 |
| HV-CMC |
Pulping rate,m³/t |
≥200 |
≥150 |
≥160 |
| LV-CMC |
Filtration loss
(10ml) |
Dosage,g/l |
≤7.0 |
≤10.0 |
| Apparent viscosity,mpa.s |
≤4.0 |
≤6.0 |
| MV-CMC |
Dosage,g/l |
6.0 |
14.0 |
3.5 |
| Apparent viscosity,mpa.s |
≥15 |
≥15 |
≥15 |
| Filtration loss,ml |
≤9 |
≤9 |
≤8 |
Note:Perform OCMA NO.DFCP-2/NO.DFCP-7 Standard.
Product performance and characteristics:
CMC has a high ability to control water loss. In particular, PAC is a highly effective fluid loss reducer at lower dosages. You can control the loss of water to a higher level. It does not affect other properties of the mud.
The formed mud cake is of good quality, strong and tough.
It has good temperature resistance and excellent salt resistance. Under a certain salt concentration, it still has a good ability to reduce water loss and maintain a certain rheology. Compared to soluble in salt water and soluble in water, the viscosity hardly changes. Particularly suitable for offshore drilling and deep well requirements.
It can well control the rheological properties of the mud. It has good non-Newtonian fluidity.
In addition, KELAIDE® CMC is used as a cementing fluid to prevent fluids from entering pores and fractures. It is used as a fracturing fluid to control fluid loss into the well.
Certificates:
Company profile and team:
Jinzhou Guangtong Cellulose Co., Ltd. is a high-tech chemical company. The company is located in Houpengtou village, Jinzhou City, Hebei Province. The environment is beautiful. The fruits are fragrant in all seasons. The company is located in 50 kilometers west of the provincial capital Shijiazhuang and 300 kilometers north of the capital Beijing. And Shihuang Expressway, National Highway 307 and Shide Railway pass through the urban area. Which has an advantageous geographical location and convenient transportation. The company covers an area of 40,000 square meters and has RMB 30 million in fixed assets. There are more than 200 employees and 30 technicians of various types, including 16 middle and high-tech technicians. Strong economic strength and abundant human resources have laid the foundation for the company's long-term development.
The company introduced a large-scale automated production line from Germany, specializing in the production of redispersible polymer powder, hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose, and polycarboxylic acid water reducer. Our products are widely used in pharmaceutical, chemical, building materials, construction, paint, cosmetics, agriculture, military and other industries. Our factory has advanced production equipment, testing equipment, strong technical force, sufficient R & D personnel and independent research and development capabilities. Product quality has reached the international leading level. Our products sell well both at home and abroad and have won wide acclaim.
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