FIELD: oil-and-gas industry.
SUBSTANCE: in compliance with first version, this plant comprises tubing, parker separating the top and bottom beds, Downhole two-way motor tightly connected with electric cable. Said motor is coupled by driven shafts with top and bottom rotary pumps. Top rotary pump is connected from below with intake module provided with lateral fluid intake channels and bottom rotary pump with outlet connected with said tubing. Parker barrel is connected from below by shank with filter to intake fluid from bottom seam and from above with bottom rotary pump inlet. The latter is provided with outlet module connected to Downhole motor bottom. Outlet module houses lower drive shaft and downhole motor hydraulic protection device. Intake module of top rotary pump is provided with extra well filter and connected to downhole motor from above. Inlet module houses upper drive shaft and downhole motor hydraulic protection device. Top rotary pump features output equal, at least, to total capacity of both well seams at equal rpm of motor shafts. Upper rotary pump comprises several sections to up fluid lift pressure in aforesaid tubing. In compliance with second version, downhole motor is additionally provided with jacket connected from above with upper pump- intake module to make the motor cooling chamber with fluid feed from below from behind-the-packer annulus and discharge via lateral channels of intake modulus to upper rotary pump.
EFFECT: higher reliability.
4 cl, 2 dwg
