| 摘要 |
The invention relates to a method for extracting from a deposit of heavy hydrocarbons, through at least a well, the in situ steam-treated hydrocarbons, said steam being introduced through some injection wells which periodically may consist of the production wells. According to the invention, the method consists in introducing heavy hydrocarbons into the deposit through some steam injection wells, wherein there is introduced, in a concentration of 50...50000 ppm, an amine with the boiling point at the atmospheric pressure of not more than 135°C and a pka with a value of at least 5 or an amine and a volatile solvent, such as ammonia in the same concentration, the amine being selected from a group consisting of methyl amine, dimethyl amine, trimethyl amine, diethyl amine. ethyl amine, isopropyl amine, n-propyl amine, 1,1-dimethyl hydrazine, isobutyl amine, n-butyl amine, pyrrolidone, triethylamine, methyl hydrazine, piperidine, dipropylamine, hydrazine, pyridine, ethylene diamine-3-methoxypropylamine, N,N-diethylhydroxylamine, morpholine, pyrrole, cyclohexylamine and combinations thereof, the hydrocarbons being brought to the surface by some extraction holes. |
