An aqueous composition for removing scale deposits, especially on subsea equipment and a method of using the same is described. The aqueous composition comprises (a) a potassium phosphate compound

FIELD: oil and gas industry.SUBSTANCE: method for limiting water influx in a well involves portion pumping to the isolation interval of composition and gel-forming regulator. Composition contains hydrolysed polyacrylonitrile - 100 parts by volume, liquid glass - 20-50 parts by volume, polyacrylamide DP9-8177 - 50-100 parts by volume. Aluminium oxychloride in the amount of 200-300 parts by volume is used as gel-forming regulator.EFFECT: improving efficiency of waterproofing work owing to increasi...

FIELD: oil and gas industry.SUBSTANCE: method consists in series pumping to a well of portions of water solution of a structure-forming reagent and a structure former, which are separated with fresh water bank. Water solution of the structure-forming reagent and the structure former is forced through to isolated interval by pumping of displacement fluid. First, water solution of hydroxochloric aluminium is pumped to the formation and left for the time period of reaction with carbonate basin. Pum...

PURPOSE: A normal temperature curable road lane paint composition is provided to have an excellent abrasion resistance, durability and visibility when used on the road surface of the asphalt pavement or the concrete pavement, and to be able to provide a traffic sign which is well shown at night as the reflectivity to the light emitted from the headlight of the vehicle is high. CONSTITUTION: A normal temperature curable road lane paint composition includes 5-50 weight% of an inorganic binder and ...

FIELD: mining.SUBSTANCE: heat source comprises a body, which is equipped with a composite material that generates gas during combustion and actuates from an electric spiral, and layers of epoxide compound and thiocol-based sealant sealing the ends of the material of the gas-generating composition. The composite material of the heat source that generates gas during combustion contains efficient amount 20 wt % of powdery polyvinyl chloride chlorinated resin of brand PSH-LS at the following ratio o...

FIELD: oil and gas industry.SUBSTANCE: device for treatment of bottomwhole formation zone contains an air chamber with atmosphere pressure and length of 20-50 m connected to the first additional perforated chamber with seal layer, solid heat generating compound A with flame igniter, combustible high-strength compound B and breakable calibrated membrane located inside