| 摘要 |
A method for thermochemical treatment of productive formation includes separate, sequential, through use of buffer liquid tetrachloroethane, delivery to the bottom hole of two-component burning-oxidizing mixture (BOM) with hydroreacting composition (HRC) and stabilization admixtures at interaction of components of which in zone of treatment of productive formation ignition of system BOM-HRC is initiated. Delivery of second composition of burning-oxidation mixture is carried out through pumping in through drill-string-borehole annulus or through pump-compressor pipes lifted over perforation zone by 9-38-70 m. Products of reaction of system BOM-HRC are pumped in to the bed with water under pressure at closed drill-string-borehole annulus in 2-3 times volume of mixtures delivered to bottom zone. Increase of effect of treatment on all types of rocks (in particular sandstone and siltstones) is provided. One of compositions of two-component burning-oxidation mixture includes salts and/or complex compositions of ammonia nitrates in quantitative range of 89.4-10.6 wt. %, and second one – salts and/or complex compounds of nitric acid in quantitative range of 6.3-81.9 wt.%. Both compositions of the mixture include hydro-reacting composition based on crystalline compounds of boron, such as boron hexahydroxide ВО, at ratio of water weight to the weight of hydroreacting composition of 5.7:48.0, and as burning stabilizing admixture those include polymeric paracyanogen (СN)n, amount of which is 20-45 wt. % of amount of HRC. |
