Sodium CMC in Oil and Gas Drilling is used for the preparation of drilling fluid, cementing fluid and fracturing fluid.
- Sodium CMC can be used in fresh water, sea water and saturated brine;
- Sodium CMC has uniform substitution molecules, less dosage and high slurrying rate;
- Salt and alkali resistance Good performance, strong antibacterial performance, easy to use;
- Fluid loss reduction, obvious thickening effect;
- Rheological control, strong suspension ability;
- Ultra-high viscosity products can also replace guar gum to reduce production costs.
CMC In The Drilling Fluid Mud
- CMC is mainly used as viscosifier, fluid loss reducer, and rheology control agent, which can effectively protect the well wall to prevent mud loss and carry cuttings;
- Protect the drill bit and increase the drilling speed;
- In low solid phase and no solid phase Drilling fluid can significantly reduce fluid loss and thin mud cake thickness, and has a good inhibitory effect on shale hydration.
In The Cementing Fluid
- To control fluid viscosity;
- Suspend heavy objects;
- Prevent fluid loss;
- Better protect the well wall;
- And prevent fluid from entering pores and fractures.
In The Fracturing Fluid
- The filler can be efficiently carried into the oil well fracture;
- The permeation channel can be established;
- The fluid can be effectively controlled to enter the oil well structure;
- The fluid loss can be reduced, and the pressure drop can be reduced.
Sodium CMC in Oil and Gas Drilling Fluid Mud Technical Specification
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Spec. Indexes |
CMC-LV |
CMC-HV |
P．S |
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|
Viscometer 600 rpm |
Deionized water solution |
≤90 |
≥30 |
Conforms to GB/T5005-2010 and API-13A standard |
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Saline solution(40g/l) |
– |
≥30 |
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Saturated brine |
– |
≥30 |
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Filtration (ml） |
≤10 |
≤10 |
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Appearance |
White or yellowish fibrous powder or granular |
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Purity |
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Degree of Substitution (D.S) |
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PH Value (10g/ml) |
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loss on Drying W % |
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Chlorides Cl¯(%) |
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Oil Field Drilling Ultra-High Viscosity Grade CMC Technical Specification
|
Spec. Indexes |
CMC5000 |
CMC6000 |
CMC7000 |
|
1%B Viscosity (mPa.s) |
5000-6000 |
6000-7000 |
7000-8000 |
|
PH Value (10g/ml) |
6.5-8.5 |
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Purity |
≥99 |
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loss on Drying W % |
≤10.0 |
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Degree of Substitution (D.S) |
≥0.90 |
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Appearance |
White or yellowish fibrous powder or granular |
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