FIELD: oil and gas industry.
SUBSTANCE: device includes tubing string with a separating packer and well chamber with connection pipe. According to the invention, well chamber represents a hollow barrel with through radial holes made in its cylindrical surface. Each barrel is installed on tubing string coaxially to it. For that purpose, barrel is provided in its upper and lower parts with means to be connected to tubes of the string. Through radial holes of each barrel are located at its formation. Inner surface of each barrel is provided with a mounting seat for its connection pipe. Inner diameter of barrel is smaller than inner diameter of tubing string. Cylindrical connection pipe is tightly installed inside each barrel on its inner cylindrical surface coaxially to it. Cylindrical surface is equipped with through radial hole(s) coinciding with radial holes of barrel. Diameters of inner and outer surfaces of connection pipe and inner surface of barrel are larger than corresponding sizes of below lying connection pipe and barrel.
EFFECT: simpler design of plant and serviceability.
9 cl, 3 dwg
Authors
Dates
2013-01-27—Published
2011-09-27—Filed