METHOD OF THERMAL-MINING DEVELOPMENT OF DEPOSITS OF HIGH-VISCOSITY OIL MINE WORKINGS AND DEVICE FOR IMPLEMENTATION THE SAME Russian patent published in 2018 - IPC E21B43/24 E21C41/24 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to oil industry. Method includes penetration two parallel mine workings, drilling surface injection and underground production and steam distribution wells, using optical sensors for temperature monitoring of underground wells, transfer of information from sensors via optical cable to the computer, transfer of control commands from the computer to control devices of surface injection wells, implementation of steam injection into surface force wells and the stopping of steam injection when the temperature in the underground production wells increases. Penetration of two parallel different diameter micro-tunnels is taken. Each micro-tunnel is made of consisting an inclined input section starting from the surface of the horizontal section and an output inclined section extending to the surface. Larger diameter micro-tunnel is a service one. Second micro-tunnel with a smaller diameter is an oil collection system for collecting oil containing liquid and placing the steam supply line to underground steam distribution wells, where at the transition section from the horizontal section to the inclined outlet section, a sump is assembled to collect the oily liquid, which is pumped to the surface through an oil pipeline laid in the outlet inclined section. Steam distribution and production wells are drilled from niches that are traversed perpendicular to the longitudinal axis of the horizontal section of the service micro-tunnel above the oil recovery micro-tunnel and connected to a small micro-tunnel by a vertical well with a sealed hatch. Niches internal volume is separated from the service micro-tunnel by a sealed gateway.

EFFECT: well flow rate is measured to determine whether it is necessary to carry out maintenance or well maintenance operations, the possibility of steam breakthrough is excluded and a heated oil-containing liquid into the mine workings, safe operating conditions of the maintenance personnel are ensured.

2 cl, 4 dwg