FACILITY FOR SULFUROUS OIL PRODUCTION Russian patent published in 2008 - IPC E21B43/00 

FIELD: mining.

SUBSTANCE: facility includes cable hoist mounted at a transportation base with power drive at the well head, with a loaded swab at one end of the cable. The swab can be run down the well via a lubricator by cable sealing unit. It also includes a mast with guide roller for the cable, collector tank for well products with vent channel, the said collector tank being connected to the lubricator through reverse valve. The swab has a hollow case with channels, a valve inside and gasket elements mounted from outside. The hollow swab case features a bottle neck inside, and the valve is a bulging rod mounted coaxially in the case with possibility of limited axial movement and hermetic interconnection with the bottle neck of the case from the bottom. The rod is connected to the cable above and to the load below on hinge joint. The facility is equipped with an additional tank containing neutraliser of oil gas impurities, connected hermetically at the inlet, through valving, to the collector tank vent channel and, through valving and gas flow restrictor, to the lubricator, and at the outlet to a neutralised gas atmosphere bleeder. Inlet of the additional tank is equipped with disperser and the outlet features spray deflector. The additional tank is also equipped with heat interchanger, the inner surface of which is connected to the transportation base exhaust system.

EFFECT: operating staff safety; prevention of environmental pollution and reduction of accident management cost during oil production at wells.

2 cl, 4 dwg