First, the use of products
KD-57 for vegetable gum crosslinking with organic boron crosslinking agent, the product can and water soluble natural vegetable gum and modified products in alkaline conditions crosslinking reaction, with a wide range of crosslinking, cross-linking analysis of water, low temperature gel not brittle hair, water thoroughly, temperature returned to plastic and gel of anti temperature, anti shear characteristics, the formation of high viscosity gel. The requirement of high temperature formation fracturing in oil field can be met under the optimum conditions.

Two, technical requirements

Project	Index
Appearance	Homogeneous liquid
Crosslinking time, s	30～300
Nevinne shear capacity mPa•s	≥50

Three, the use of methods
1 organic boron crosslinking agent KD-57 its use ratio is 0.3%, the field can be based on the well depth, the construction scale of fracturing fluid requirements, to adjust.
2 field can be based on the actual situation, the use of organic boron crosslinking agent KD-57 dilution, dilution ratio should not be more than 5 times, otherwise it will reduce the performance of the crosslinking agent.

Four, storage and transportation
1 products stored in ventilated, dry place, prevent direct sunlight.
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.