FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil or gas production and to their pumping through pipelines. The well treatment method includes creation of the first process fluid containing water and one or several water-soluble branched polysaccharides from the group consisting of xanthan, diutan, their derivatives which are present in water in the concentration, sufficient so that the first liquid has viscosity of at least 5 sP, creation of the second process fluid containing one or several water-soluble persulphates and one or several strong bases, injection into a well of the first liquid, injection into a well of the second liquid and their pumping so that to make them to come in contact with each other in a certain part of a well at the design temperature less than 100°F (37.8°C). The invention has been developed in the dependent formula terms.
EFFECT: increase of efficiency of fluidifying at low temperatures.
5 cl, 5 tbl
