First, the use of products
Sodium carboxymethyl cellulose, no smell, no smell, with moisture absorption. Easy to disperse in water into a colloidal liquid clarity, insoluble in organic solvents such as ethanol, can be used as drilling fluid tackifier and filtration reducing agent such as, with strong salt resistance, applicable to various types of water-based drilling fluid system.

Two, technical requirements

Project		Index
Starch or starch derivatives		Nothing
600r/min reading viscometer	De ionized water solution	≥30.0
	40g/L saline solution	≥30.0
	Saturated saline solution	≥30.0
Saturated brine suspension filtration，mL		≤10.0

Three, the use of methods
1 in the case of mixing, slowly adding CMC, can accelerate the dissolution of;
2 in the case of heating, dispersed into the CMC, can improve the dissolution rate, but the heating temperature should not be too high, suitable range of 50 to 60;
3 when mixed with other materials, the first solid mixture, and then dissolved, the dissolution rate can be improved;
Field can be adjusted according to the actual situation, the recommended dosage is 0.5% ~ 1.2%.

Four, storage and transportation
1 products are stored in a dry and ventilated place, avoid direct sunlight and rain.
2 transport and handling should be handled gently.

Five, matters needing attention
In the use process, the staff shall wear labor protection supplies, wear dust mask to prevent products splashed into the eyes or contact to the skin, once the occurrence of the above phenomenon, immediately wash with plenty of water, in serious cases, timely medical treatment. Solid products to avoid spreading on the ground, in order to prevent the product after the damp.