SU111585A1 - Deep pumping unit for separate operation of two oil reservoirs - Google Patents

Description

The proposed invention is applicable to the field of separate operation of two oil reservoirs of the town of Chubinnonasoyan with the installation.

A disadvantage of the known installations is that when they are lowered into the well, it is difficult to release gas from the lower horizon because of the presence of the packer. In the onsable invention, this disadvantage is eliminated by the fact that two concentrically disposed columns of pipes are applied to the well. Four) without which the sub-gas is withdrawn from the horizontal horizon.

The cross section shows the installation in the section.

Into the well / onus column 2 (ns 4 or 3/1 pipes) with a caster 3 and coupling 4.

Inside this column, column 5 (of 2. / pipes) descends from the Tofr 6 with a cone 7.

Then in the column 5, on the column of I / z pipes, the cylinders 8 and 9 of the double pump are fed.

The bottom pump has a coupling sleeve 10 with valves //, 12 and 13.

. 10 cones are planted in

 ) you 6. P, 14, descend into the c ... e. all: S1: iiacoc 16.

1; Sft1, Ing stratum through the apertures of / 7 J can. Gy / 6 Noetun;

: 1et

Out of 15, the annular space 19. through the section, the Chintin in the coupling passes into the channels 56 and through the claian // enters into C1: .- 1Nndr 5 /. From the CNLIND5K1 21, the injection valve 1 is pushed into the pipes 22 through Ksanan 23, plunger.-5. Po.Mid HITOK 24 C plunger 14.

Oil of the upper g ;;; ast;; nz of the annular space 25 is sucked into the cylinder 26 through the holes

27 (points). valve 13. channels 2S n annular 2f.

From the cylinder 26, the oil | is forced out into the annular 1st space 30 (between / n 2 -;: .. pipes) through the channel 29. to the channels 28. through the valve 12 g to the channels 31.

The top pump can ts.mete 38 diameter or 32 mm. Bottom pump can nmet) diameter 32 or

28mm.

The maximum depth of the descent of the installation is determined by the depth of the depth of the 32 m.

The installation has open annulus for both formations, which provides gas venting and control of dynamic levels.

Hydraulic forces act in the pump in such a way that the lowering of the plungers is mainly due to the hydrostatic pressure of the liquid column in the Vj-i pipes.

Due to the small area of the annular space between the rods and 1/2 pipes, as well as between Viz and 2/2 pipes, with appropriate selection of the stroke length and the number of strokes, it is possible to provide favorable conditions for the removal

sand, i.e., it is possible to ensure the operation of the installation without plug formation.

Subject invention

Deep pumping for the separate operation of two oil reservoirs, characterized in that, in order to improve pump performance by removing subsucker gas to the surface, the annulus is formed by two concentrically arranged pipe columns, from which the outer row is equipped with a packer separating the upper and bottom layers.