ENZYMATIC DESTRUCTOR FOR PROCESS LIQUIDS Russian patent published in 2021 - IPC C09K8/68 C09K8/86 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to oil and gas industry and can be used in technology of formation hydraulic fracturing, well killing, repair and insulation works in oil and gas wells, where the process liquids used are cross-linked and non-crosslinked polymer systems based on guar gums, derivatives of cellulose and starch derivatives. Enzymatic destructor for destruction - process liquids destruction in technologies of formation hydraulic fracturing, well killing and repair insulation works in oil and gas wells, where the process fluids used are cross-linked and non-crosslinked guar-based resin systems, non-crosslinked polymer systems based on cellulose derivatives or starch derivatives, containing an enzyme β-mannanase, additionally contains xylanase and amylase, and carrier or solvent, where the carrier used is a natural polymer - food starch; and as a solvent - mono- or two- or triatomic alcohol, or a mixture thereof and water, in form of drinking water, with the following ratio of components, wt. %: β-mannanase 0.0001–0.001, xylanase 0.0001–0.001, amylase 0.0001–0.001, natural polymer is the rest, or β-mannanase 0.0001–0.001, xylanase 0.0001–0.001, amylase 0.0001–0.001, single- or double- or triatomic alcohol or their mixture 40.0–60.0, water is the rest.

EFFECT: technical result is enabling accurate destructor dosing, which increases efficiency of its use, as well as use at temperature of 20-80°C and lower.

1 cl, 9 ex, 5 tbl