METHOD FOR THERMOSHAFT OIL PRODUCTION

摘要

A method for thermoshaft oil production comprises the provision of a combination of mining holes above an oil-bear-ing bed which are inclined at from 1.degree. to 3.degree. to the horizon. Then injection holes are drilled from these mining openings for feeding a heating medium into the bed. After that, a slope and a footway leading to the bottom part of the oil-bearing bed are constructed, and a production gallery is provided within the bottom part of the bed. Horizontal and ascending within the bottom part of the bed. Horizontal and ascending holes are drilled from the production gallery for oil production. A heating medium is fed into the injection holes for oil bearing bed and for displacement of oil into the horizontal and ascending production holes towards the production gallery wherefrom the oil is fed up to the surface.