COMPOUND INHIBITOR OF GAS HYDRATE FORMATION AND CALCIUM CARBONATE DEPOSITION DURING DEVELOPMENT AND OPERATION OF PETROLEUM AND GAS FIELDS Russian patent published in 2023 - IPC C09K8/524 C09K8/528 

FIELD: gas and petroleum industry.

SUBSTANCE: compound inhibitor of gas hydrate formation and calcium carbonate deposition during development and operation of petroleum and gas fields includes arabinogalactan polysaccharide, a monatomic aliphatic alcohol or a mixture of alcohols by the general formula C_nH_2n+1OH, where n=1-3, a glycol or a mixture of glycols by the general formula C_nH_2n(OH)₂, where n=2, 3, and water; wherein methanol, or ethanol, or isopropyl alcohol is used as monatomic aliphatic alcohol, and mono- or diethylene glycol or propylene glycol is used as glycol, with the following ratio of components, wt.%: arabinogalactan 1 to 20; monatomic aliphatic alcohol or mixture of alcohols 1 to 40; glycol or mixture of glycols 10 to 25; water the rest.

EFFECT: higher inhibitory capacity with respect to gas hydrate formation and calcium carbonate salt deposition with reduced consumption of the inhibitor.

1 cl, 4 tbl