FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to pipeline transport of oil, oil products and gas condensate and is intended for cleaning of pipelines from asphaltene-resin-paraffin deposits, water-oil emulsions and formation water. Composition of multifunctional gel piston includes water-soluble or partially cross-linked polyacrylamide, product of chemisorption of formaldehyde with aqueous solution of carbamide, hydrocarbon fluid, inorganic cross-linking agent, water, and additionally a second amide, which is carbamide, melamine or mixture thereof.
EFFECT: invention improves elastic operational characteristics and increases level of cleaning of cavity of pipe from contaminants.
1 cl, 1 dwg, 1 tbl
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Authors
Dates
2020-05-13—Published
2019-09-23—Filed