NATURAL BITUMEN PRODUCTION METHOD Russian patent published in 2009 - IPC E21B43/24 

FIELD: oil-and-gas production.

SUBSTANCE: invention related to oil-and-gas production, particularly to well methods of hydrocarbons field development with horizontal canals reservoir opening and its thermal treatment, can be used for natural bitumen production. Essence of invention: method includes construction wells, horizontal canal reservoir opening through the well, reservoir supply with a heat-carrier, collection of a product in the well and its withdrawal to the surface though riser. According to the invention one of more risers used. Riser executed as sealed heat insulated case, installed on a tank heat insulated cup, inside of which working unit - closed pulling element with piston located, thrower over drive block with sealing element and in its rising branch cylinder located, which connected to exhaust line and located at burial depth in tank. Between its rising and descending branches locate steam pipeline, connected to steam generator and though upper distributing collector and upper remotely controlled valves, dependently on process regime - with all or just part of controlled canals, which in turn connected, when upper controlled valves are in shut-off position, though bottom controlled valves and bottom distribution collector, with tank, and connect case with light fraction catching system.

EFFECT: natural bitumen production efficiency increase because of heat from supplied stem rational use, catching of light fractions into system, primary production preparation in underground tank and its use for risers with high technical-economical factors pumping out.

6 cl, 6 dwg