First, the use of products
The anti swelling agent KD-80 can effectively prevent the swelling and dispersion of clay, thereby enhancing the cementing strength of the oil layer, and can effectively restrain the sand out of the core. The product is suitable for: (1) the clay has been expanded, the sand out of the well; (2) the high clay content of Nii mining; (3) the steam injection well and the high temperature well.

Two, technical requirements

Project	Index
Appearance	Light yellow or orange uniform liquid
Solid content（%）       ＞	20
pH	6～9
24h Swelling ratio of clay,%  ＜	30
Expansion height,mm ≤	2.5
Sand restraining ability 900ml/h	Sand content≤0.05g/L
	turbidity≤80

Three, the use of methods
When this product alone for stratigraphic antiswelling treatment, medicament with a concentration for a 10% aqueous solution, with pump handlebar the aqueous solution with wellbore to squeeze into the ground, shut in the well for one hour, and other operations can be; when the goods and acidizing and fracturing construction with the use, available this 5% aqueous solution do preflush or rear liquid, can also be directly when add 2% acid liquid and fracturing fluid for use in. The amount of oil per meter, the solution of 0.3-0.5 tons, or wells per dosage of 3-6 tons.

Four, storage and transportation
1 products stored in ventilated, dry place, prevent direct sunlight, far away from the fire source.
2 in the process of transportation and handling to prevent violent collision, extrusion, inversion, so as to avoid leakage.

Five, matters needing attention
In the use process, the staff shall wear labor protection supplies, 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. Sprinkle on the ground should be as far as possible, for a small number of products with soil landfill, you can also use a large amount of water to wash, wash water into the waste water system.