PROCESS FOR EXTRACTING OIL BY LINEARLY PUSHING IT INTO HORIZONTAL WELLS

摘要

The invention relates to a process for extracting oil from a field, by underground combustion or by steam or a gaseous solvent injection, through some injection wells and the oil extraction through some reaction wells. According to the invention, in the case of the oil extraction by underground combustion, the process comprises the initial injection of a gas through at least one horizontal well placed up in the formation and the extraction of the combustion gas and the oil, gravitationally separated and drained through other horizontal wells, parallel and laterally shifted, which are placed down in the formation, where the field exploitation is carried out by the sequential conversion of the production wells into injection wells, in an operating mode where the horizontal wells are placed in straight line.