Residual oil production method

Abstract

The invention relates to the oil industry, in particular to a method for increasing oil production from waterlogged and low-pressure oil wells. The object of the invention is to develop a highly effective method for combating biocorrosion in oil production, with a complex effect for the extraction of difficult-to-extract oil reserves. The problem is solved by the fact that in the method of extracting residual oil, which consists of injecting carbon nanotubes and water into the formation, according to the invention, carbon nanotubes obtained as a result of the decomposition of ethylene in the presence of a ferrocene-containing catalyst, carboxyl-methylcellulose as a biopolymer and, additionally, 1-butoxy-2-oxazolidinemethoxy propane as a biocide are used in the following ratio of components, blunt. %: KMS 7.5 1-butoxy-2-oxazolidinemethoxy propane 0.5 - 1.25 MCHKNB 0.1 – 2 water residue.