RU146622U1 - IMPLOSIVE PRESSURE HYDROGENERATOR - Google Patents

Abstract

An implosion pressure hydrogenerator comprising an intake pipe with holes for supplying formation pressure of a wellbore fluid, an implosion chamber cylinder, an adapter connecting an intake pipeline to an implosion chamber cylinder, a plunger connected to a boom, a working chamber consisting of a cylinder with windows, pressure concentrators, a shut-off valve characterized in that the cylinder of the implosion chamber is made collapsible, consisting of several parts interconnected by couplings, in the upper and at the bottom of which holes are made, designed to accommodate the connected parts of the cylinder of the implosion chamber in them, a hole dm is made between the holes, which is the inner diameter of the coupling, and is designed to accommodate the plunger in it with an outer diameter of dp, with dm> dp + 2δ, where dp is the outer diameter plunger, dm is the inner diameter of the coupling, δ is the radial clearance between the outer diameter of the plunger and the inner diameter of the coupling equal to 0.01 cm, and the length of the inner diameter of the connecting th coupling Lm> Lп, where Lm is the length of the inner diameter of the coupling, i.e. the distance between the two parts of the connected cylinder of the implosion chamber, Lп - the length of the plunger.

Description

The utility model relates to the oil industry and can be used in equipment to restore / increase the productivity of production and injection wells with multiple hydroimpulse effects on the bottom-hole formation zone using the implosion effect.

Known devices that provide multiple hydroimpulse effects on the bottomhole formation zone [Popov A.A. "Implosion in oil production processes." M. Subsoil. 1996 p. 106-108, p. 113-114].

Closest to the claimed utility model is an implosive reusable pressure hydraulic generator according to patent No. 2303691, IPC E21B 37/00, comprising an intake pipe with holes for supplying formation pressure of the well fluid, an implosion chamber cylinder, an adapter connecting an intake pipeline to an implosion chamber cylinder, a plunger connected to a rod, a coupling, a working chamber, consisting of a working cylinder with windows and pressure concentrators, a shut-off valve, a rod, a compression cylindrical spring, m the working chamber is equipped with a hydraulic shock absorber.

The principle of operation of the device is that when the plunger is raised in the cylinder of the implosion chamber, a vacuum is created, and when it enters the expanded part of the sub, the column of well fluid collapses into the implosion chamber, creating a hydraulic shock in the lower part of the implosion chamber, while opening the shutoff valve. The pressure impulse created in this way in the area of the outlet windows of the working chamber is transmitted to the bottomhole formation zone through the perforation windows in the casing.

However, the said implosive pressure hydrogenerator, as well as all devices incorporating an implosion chamber cylinder, have a common structural disadvantage associated with the length of the cylinder of the implosion chamber, which is 5-10 m. [Popov A.A. "Implosion in oil production processes." M .: Subsoil. 1996, p. 179 (table p. 23)] and the associated difficulties with its transportation, assembly and installation. Using an implosion chamber cylinder consisting of 2 or more parts interconnected by standard couplings, for example, according to GOST 8966-75, is very difficult due to the fact that it is practically impossible to ensure the alignment of the connected parts of the cylinder at that while the plunger, during the passage of this joint, must simultaneously be in both connected parts of the cylinder of the implosion chamber, and at the same time, the gap between the plunger and the cylinder of the implosion chamber in both of its connected parts must not exceed desired value of 0.01 cm [A. Popov "Implosion in oil production processes." M .: Subsoil. 1996, p. 179, p. 181) since leaks greater than 0.01 cm significantly reduce the effect of implosion.

The objective of the utility model is to create an implosive pressure hydrogenerator with an implosion chamber cylinder convenient for transportation, assembly and installation.

This technical result is achieved by the fact that in an implosion pressure hydrogenerator containing an intake pipe with holes for supplying formation pressure of the wellbore fluid, an implosion chamber cylinder, an adapter connecting an intake pipeline to an implosion chamber cylinder, a plunger connected to a rod, a working chamber consisting of a cylinder with windows and pressure concentrators, a shut-off valve connecting the cylinder of the implosion chamber to the working chamber, according to the claimed technical solution, the cylinder impl The ionizing chamber is made collapsible from several parts (at least two) interconnected by connecting couplings, in the upper and lower parts of which holes dk are made, designed to accommodate the connected parts of the cylinder of the implosion chamber in them, between the holes dk a hole dm is made, which is the inner diameter of the coupling, and designed to accommodate a plunger in it with an outer diameter dp for passage of the inner diameter of the coupling,

dm is the inner diameter of the coupling,

dp - the outer diameter of the plunger,

δ is the radial clearance between the outer diameter of the plunger and the inner diameter of the sleeve less than 0,01 cm, and

Lп - length of the plunger;

Lm is the length of the inner diameter of the coupling, i.e. the distance between the two parts of the connected cylinder of the implosion chamber.

Relations (1) and (2) provide free passage of the plunger through the couplings even with significant misalignment of both parts of the implosion cylinder located in the holes dk, because the length of the plunger Lp is less than the length Lm of the inner diameter dm of the coupling, and the radial clearance δ between the outer diameter of the plunger dp and the inner diameter dm of the coupling is less than 0.01 cm, which ensures minimal fluid leakage that does not significantly affect the effect of implosion [Popov A. BUT. "Implosion in oil production processes." M .: Subsoil. 1996, p. 179, p. 180-181)].

In FIG. 1 schematically shows an implosive pressure hydrogenerator.

In FIG. 2 coupling with a plunger located in it (callout A).

An implosion pressure hydrogenerator comprising an intake pipe 1 with holes for supplying formation pressure of a well fluid, an implosion chamber cylinder 2 with an inner diameter d, a sub 3 connecting an intake pipe 1 to an implosion chamber cylinder 2, a plunger 4 connected to a pump rod 5, a working chamber 6, consisting of a working cylinder with windows, pressure concentrators 7, shut-off valve 8, tubing string (tubing) 9, according to the proposed technical solution, the cylinder of the implosion chamber 2 issue It is dismountable from several parts (at least two parts) interconnected by couplings 10 on both sides of which holes dk are made, designed to accommodate the joined parts of the cylinder of the implosion chamber. Between the holes dk, a hole dm is made, which is the inner diameter of the coupler and designed to accommodate the plunger in it with an outer diameter dp, and

dm> dп + 2δ, where

dm is the inner diameter of the coupling,

dp - the outer diameter of the plunger,

δ is the radial clearance between the outer diameter of the plunger and the inner diameter of the coupling equal to 0,01 cm, and the length of the inner diameter of the coupling Lm> Lп, where

Lm is the length of the inner diameter of the coupling, i.e. the distance between the two parts of the connected cylinder of the implosion chamber,

Lп - length of the plunger.

The assembly and disassembly of the implosive pressure hydrogenerator is as follows.

Before the implosion pressure hydrogenerator is lowered into the well, a collapsible cylinder of the implosion chamber is assembled by connecting the necessary number of its parts with the coupling 10. For this, on each side of each coupling 10 in the holes dk, each part of the cylinder of the implosion chamber is fixed. An implosion pressure generator containing an intake pipe 1 with holes for supplying a downhole pipe is lowered into a well filled with liquid on tubing 9 using, for example, APRS-40, UPA-60/80 lifting units or other standard mechanisms liquid, collapsible cylinder of the implosion chamber 2, the parts of which are interconnected by a coupling 10 and in which there is a plunger 4 connected to the pump rod 5. The implosion pressure hydrogenerator is made with a working chamber 6 from the window and, by pressure concentrators 7 and shut-off valve 8. When lifting the plunger 4 with a diameter dp, the latter freely passes through the coupling 10 (along the inner diameter of the coupling dm) from one part of the cylinder of the implosion chamber 2 to the other with minimal leakage, the effect of implosion persists in Further, the work of an implosive pressure hydrogenerator is traditionally carried out.

The implosion pressure hydrogenerator can be used repeatedly, the proposed design allows you to disassemble the cylinder parts of the implosion chamber, removing the couplings and transporting to another oil well.

Due to the fact that the cylinder of the implosion chamber is collapsible, consisting of several parts and has design parameters that allow the free movement of the plunger in the couplings, minimal leakage of working (well) fluid arising in the couplings is created in the proposed implosion pressure generator, which does not significantly affect on the effect of implosion. The proposed implosive pressure hydrogenerator is convenient for transportation, assembly and installation with multiple hydroimpulse effects on the bottomhole formation zone.

Claims (1)

An implosion pressure hydrogenerator comprising an intake pipe with holes for supplying formation pressure of a wellbore fluid, an implosion chamber cylinder, an adapter connecting an intake pipeline to an implosion chamber cylinder, a plunger connected to a boom, a working chamber consisting of a cylinder with windows, pressure concentrators, a shut-off valve characterized in that the cylinder of the implosion chamber is made collapsible, consisting of several parts interconnected by couplings, in the upper and the bottom parts of which are made holes designed to accommodate the connected parts of the cylinder of the implosion chamber, the holes dm are made between the holes, which is the inner diameter of the coupler and designed to accommodate the plunger with the outer diameter dp, and dm> dп + 2δ, where dp - the outer diameter of the plunger, dm is the inner diameter of the coupling, δ is the radial clearance between the outer diameter of the plunger and the inner diameter of the coupling equal to 0.01 cm, and the length of the inner diameter of the coupling Lm> Lп, where Lm is the length of the inner diameter of the coupling, i.e. the distance between the two parts of the connected cylinder of the implosion chamber, Lп - length of the plunger.

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