METHOD OF OPERATION OF PRODUCING GALLERIES OF DIP-WORKING BLOCKS AT THERMAL DEVELOPMENT OF OIL FIELDS Russian patent published in 2017 - IPC E21B43/24 E21C41/24 

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil industry and can be used in thermoshaft development of high viscous oil. The method of operation of production galleries dip-working blocks at thermoshaft development of oil fields includes coolant injection into injection wells, collection of well production through production wells and pumping of the product to the surface from the pump chamber. In accordance with the method on the wellhead of each production well the drain pipes are installed which are downwards, and the ends of the drain pipes of all wells are on the same absolute level. The production gallery is isolated from other cavities of the dip-working block through the sealed waterproof bridges, each bridge has a pipeline to drain the well production with the suction nozzle oriented upwards, as well as the observation pipeline for well production level monitoring. On each line upstream of the sealed waterproof crosspiece thet shut-off valve is installed which is closed. The well production level is monitored by opening shut-off valves of observation pipelines. Upon reaching by the well production of supervisory pipeline level the shut-off valve of the respective pipeline is opened to drain the product, and the product is drained until the moment of coolant breakthrough through the drain pipe.

EFFECT: invention provides improvement of working conditions of the operators in oil shafts while reducing the cost of ventilation of the dip-working block.

4 dwg, 1 ex