CN205743780U

CN205743780U - Double-layer injection pumping device

Info

Publication number: CN205743780U
Application number: CN201620503302.5U
Authority: CN
Inventors: 费克林; 胡梦祈; 成心建
Original assignee: Luzhou Changjiang Petroleum Engineering Machinery Co Ltd
Current assignee: Luzhou Changjiang Petroleum Engineering Machinery Co Ltd
Priority date: 2016-05-30
Filing date: 2016-05-30
Publication date: 2016-11-30
Anticipated expiration: 2026-05-30

Abstract

The utility model discloses a kind of double-layer injection pumping device, including inner tube, outer tube with beat blocking sprayer, it it is the annular space of back-end closure between inner tube and outer tube, beat blocking sprayer and include upper connecting tube, conduit, connecting tube, transition conduit, sleeve pipe and nozzle boss, inner pipe joint it is installed with in upper connecting tube, outer tube front end couples with upper connecting tube, and inner tube front end couples with inner pipe joint；The front end of inner pipe joint is positioned at conduit, and conduit is communicated with its cylindrical and the outage of upper connecting tube endoporus front end；One feed liquor set is placed on outside catheter proximal end and transition conduit rear end, and feed liquor is arranged with radially inlet opening, sets axially extending bore and push rod, is provided with ram seat between conduit and transition conduit, be provided with back-moving spring between conduit and ram seat in transition conduit；Check valve it is provided with between sleeve pipe and nozzle boss；Shower nozzle it is associated with on nozzle boss；Outer tube is connected with discharging tube；This utility model has the advantage that equipment cost is low, impurities removal efficiency is high, and can once complete to spray drawing liquid, improves work efficiency.

Description

Double-layer injection pumping device

Technical field

This utility model relates to a kind of double-layer injection pumping device, especially for gas well or the bilayer of airtight Pressure Vessel Injection pumping device.

Background technology

For the gas well that taps natural gas in use for some time, the sand in well easily deposits, blocks hoistway, now needs Sand setting to be extracted out, to ensure being smoothed out of gas production；Being presently used for the sand mode of taking out of gas well mainly has gaslift to take out sand and bubble row takes out Two kinds of sand, the former squeezes into liquid nitrogen or compressed gas in well by choke manifold, takes sand out of from oil pipe after gas expansion；The latter By roller of continuous oil pipe and driving means, coiled tubing, water pump, injection is first-class sends in well by coiled tubing, notes in well Enter foam discharging agent, after forming foam, by air compressor machine, foam is blown out, reach the purpose of sediment outflow；Both modes are sand washing and row During sand, using different parts respectively, not only equipment cost is higher, and sand washing and sediment outflow are carried out respectively, and operation is many, efficiency is low, And the amount of discharge impurity is uncontrollable, impurities removal limited efficacy.

Summary of the invention

The purpose of this utility model is for deficiencies of the prior art, it is provided that a kind of double-layer injection drawing liquid dress Put, equipment cost is low, impurities removal efficiency is high advantage that it has, and can once complete to spray drawing liquid, improve work efficiency.

For reaching above-mentioned purpose, double-layer injection pumping device of the present utility model, including inner tube, outer tube with beat blocking sprayer, It is annular space between inner tube and outer tube, the back-end closure of annular space, it is characterised in that beat blocking sprayer and include being equipped with endoporus and consolidating successively Upper connecting tube, conduit, connecting tube, transition conduit, sleeve pipe and the nozzle boss of connection, is installed with the inner pipe joint of hollow, outward in upper connecting tube Pipe front end couples with upper connecting tube, and inner tube front end couples with inner pipe joint；The front end of inner pipe joint is positioned at conduit, and conduit is provided with even Its cylindrical logical and the outage of upper connecting tube endoporus front end；What one feed liquor set slided is placed on outside catheter proximal end and transition conduit rear end, enters Liquid is arranged with the radial direction inlet opening being positioned at outage front, is additionally provided with axially extending bore in transition conduit, slides in axially extending bore It is provided with push rod, between conduit and transition conduit, is provided with the ram seat connected firmly with feed liquor set, be provided with multiple between conduit and ram seat Position spring；Endoporus between sleeve pipe and nozzle boss is provided with check valve；The nozzle boss first line of a couplet is connected to the shower nozzle communicated with its endoporus； Outer tube is connected with the discharging tube communicated with annular space；

During use: the inner and outer tubes beating blocking sprayer and front end are sent in gas well or airtight Pressure Vessel；By water under high pressure It is passed through inner pipe joint, conduit, connecting tube, transition conduit, sleeve pipe through inner tube, pushes check valve open, through shower nozzle injection water under high pressure to preshoot Dissipate impurity or tamper；Owing to check valve can form back pressure in sleeve pipe, water under high pressure also promotes push rod to be moved rearwards by, and push rod drives Ram seat and feed liquor set are moved rearwards by, and radially inlet opening and outage are connected, in gas well or in airtight Pressure Vessel containing miscellaneous liquid Enter the annular space between inner tube and outer tube in well or under the effect of airtight Pressure Vessel inner high voltage gas, discharging tube discharge； As stopped being passed through inner tube water under high pressure, the hydraulic pressure in sleeve pipe disappears, and check valve and feed liquor set reset, and stop injection and containing miscellaneous liquid Enter annular space；

This utility model injection, beat stifled while complete drawing liquid, impurities removal, once complete two operations, there is equipment one-tenth The advantage that this is low, work efficiency is high, and the amount discharging impurity is controlled, impurities removal efficiency is high；

As further improvement of the utility model, it is externally provided with the check-valves being positioned at upper connecting tube, non-return at inner pipe joint Valve include the non-return valve seat being installed in outside inner pipe joint, slide be located on the inner pipe joint of non-return valve seat rear non-return valve core, set Compression spring between non-return valve core and the shaft shoulder of inner pipe joint, non-return valve seat is provided with axial liquid-through hole, non-return valve seat with Non-return valve core is provided with the sealing cone matched；Once stopping being passed through inner tube water under high pressure, check-valves resets, stop containing miscellaneous liquid from Ring air leakage, it is adaptable to inner and outer tubes are the operating mode that longitudinal state uses；

As further improvement of the utility model, described check valve includes one-way valve seat, the slip being fixed in sleeve pipe Being located at the nonreturn valve core in one-way valve seat endoporus, be coupled to the valve gap of nonreturn valve core front end, valve gap is positioned at outside one-way valve seat, at valve gap It is provided with compression spring in the nozzle boss in front；End face and the rear inlet opening of endoporus thereafter it is communicated with in one-way valve seat, unidirectional Spool is communicated with the advance water hole of its cylindrical and front end face, and rear inlet opening partly overlaps in the axial direction with advance water hole；Unidirectional Spool pressurized moves forward, and when rear inlet opening overlaps in radial direction with advance water hole, water route is connected, realized injection；This constitution water Road does not haves pulse phenomenon after connecting, it is ensured that the pressure of injection continuously；

As further improvement of the utility model, in the compression spring in valve gap front, it is provided with prelocalization set；Can be to list Stroke when spool is opened is accurately positioned；

As further improvement of the utility model, positioning sleeve after being cased with outside the connecting tube at ram seat rear, described multiple Position spring is between conduit and rear positioning sleeve；Journey of can dividing a word with a hyphen at the end of a line after overlapping feed liquor is accurately positioned, it is achieved radially inlet opening and row The maximum diameter of fluid apertures；

In sum, this utility model has an advantage that equipment cost is low, impurities removal efficiency is high, and can once complete injection and take out Liquid, improves work efficiency.

Accompanying drawing explanation

Fig. 1 is the front view of this utility model embodiment.

Fig. 2 is the enlarged drawing of non-return valve seat in Fig. 1.

Fig. 3 is the enlarged drawing of non-return valve core in Fig. 1.

Fig. 4 is the enlarged drawing of conduit in Fig. 1.

Fig. 5 is the enlarged drawing of feed liquor set in Fig. 1.

Fig. 6 is the enlarged drawing of transition conduit in Fig. 1.

Fig. 7 is the enlarged drawing of push rod in Fig. 1.

Fig. 8 is the enlarged drawing of one-way valve seat in Fig. 1.

Fig. 9 is the enlarged drawing of nonreturn valve core in Fig. 1.

Figure 10 is the enlarged drawing of valve gap in Fig. 1.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is described in further detail.

As shown in Figures 1 to 10, the double-layer injection pumping device of this embodiment, including inner tube 7, outer tube 8 with beat blocking sprayer 9, it is annular space between inner tube 7 and outer tube 8, the rear end of annular space is coated with inner tube 7 by outer tube 8 and closes, and beats blocking sprayer 9 and includes being equipped with Endoporus also passes sequentially through upper connecting tube 10, conduit 11, connecting tube 12, transition conduit 13, sleeve pipe 14 and the nozzle boss 15 that screw thread connects firmly, Being installed with the inner pipe joint 16 of hollow in upper connecting tube 10, outer tube 8 front end couples with upper connecting tube 10, inner tube 7 front end and inner pipe joint 16 couple；Be externally provided with the check-valves being positioned at upper connecting tube 10 at inner pipe joint 16, described check-valves includes being installed in inner pipe joint Non-return valve seat 17 outside 16, slide be located on non-return valve seat 17 rear inner pipe joint 16 non-return valve core 18, be located at non-return valve core Compression spring 19 between 18 and the shaft shoulder of inner pipe joint 16, non-return valve seat 17 is provided with axial liquid-through hole 20, non-return valve seat 17 It is provided with the sealing cone matched with non-return valve core 18；The front end of inner pipe joint 16 is positioned at conduit 11, and conduit 11 is communicated with Its cylindrical and the outage 21 of upper connecting tube endoporus front end；What one feed liquor set 22 slided is placed on conduit 11 front end and transition conduit 12 rear end Outward, feed liquor set 22 is provided with the radial direction inlet opening 23 being positioned at outage 21 front, is additionally provided with axially extending bore 24, at axle in transition conduit 13 That slides in through hole 24 is provided with push rod 25, is provided with and is connected firmly by screw 27 with feed liquor set 22 between conduit 11 and transition conduit 13 Ram seat 26, positioning sleeve 28 after being cased with outside the connecting tube 12 at ram seat 26 rear, between conduit 11 and rear positioning sleeve 28 It is provided with back-moving spring 29；Being provided with check valve in endoporus between sleeve pipe 14 and nozzle boss 15, described check valve includes being fixed on One-way valve seat 30 in sleeve pipe 14, slide be located in one-way valve seat 30 endoporus nonreturn valve core 31, be coupled to check valve by screw thread The valve gap 32 of core 31 front end, valve gap 32 is positioned at outside one-way valve seat 30, is provided with compression spring in the nozzle boss 15 in valve gap 32 front 33, in the compression spring 33 in valve gap 32 front, it is provided with prelocalization set 34；One section of connection its rear end it is provided with in one-way valve seat 30 Face and the rear inlet opening 35 of endoporus, nonreturn valve core 31 is provided with one section and connects its cylindrical and the advance water hole 36 of front end face, intakes afterwards Hole 35 partly overlaps in the axial direction with advance water hole 36；Nozzle boss 15 first line of a couplet is connected to the rotating sprinkler 37 communicated with its endoporus； Outer tube 8 is connected with the discharging tube 38 communicated with annular space；

During use: the inner tube 7 and outer tube 8 of beating blocking sprayer 9 and front end are sent in gas well or airtight Pressure Vessel；By high pressure Water is passed through inner pipe joint 16, conduit 11, connecting tube 12, transition conduit 13, sleeve pipe 14 through inner tube 7, and nonreturn valve core 31 is by hydraulic pressure forward Mobile, when the rear inlet opening 35 of one-way valve seat 30 overlaps in radial direction with advance water hole 36, water route is connected, is opened check valve, warp Shower nozzle 37 sprays water under high pressure and breaks up forward impurity or tamper；Owing to check valve can form back pressure in sleeve pipe 14, water under high pressure is also Promoting push rod 25 to be moved rearwards by, push rod 25 drives ram seat 26 and feed liquor set 22 to be moved rearwards by so that radially inlet opening 23 and row Fluid apertures 21 is connected, broken up that impurity formed in gas well or in airtight Pressure Vessel containing miscellaneous liquid in well or in airtight Pressure Vessel The effect undershoot of gases at high pressure opens non-return valve core 18, the annular space entered between inner tube 7 and outer tube 8, discharging tube 38 discharge；As stopped Inner tube 7 is only passed through water under high pressure, and the hydraulic pressure in sleeve pipe 14 disappears, makes list under the effect of compression spring 33 and back-moving spring 29 Overlapping 22 resets to spool 31 and feed liquor, stop injection and enter annular space containing miscellaneous liquid, non-return valve core 18 also resets, stop containing miscellaneous liquid from Ring air leakage, it is adaptable to inner tube 7 and outer tube 8 are the operating mode that longitudinal state uses；

This utility model injection, beat stifled while complete drawing liquid, impurities removal, once complete two operations, there is equipment one-tenth The advantage that this is low, work efficiency is high, and the amount discharging impurity is controlled, impurities removal efficiency is high.

Claims

1. a double-layer injection pumping device, including inner tube, outer tube with beat blocking sprayer, is annular space between inner tube and outer tube, annular space Back-end closure, it is characterised in that beat blocking sprayer and include being equipped with endoporus the upper connecting tube connected firmly successively, conduit, connecting tube, mistake Crossing pipe, sleeve pipe and nozzle boss, be installed with the inner pipe joint of hollow in upper connecting tube, outer tube front end couples with upper connecting tube, before inner tube End couples with inner pipe joint；The front end of inner pipe joint is positioned at conduit, and conduit is communicated with its cylindrical and upper connecting tube endoporus front end Outage；What one feed liquor set slided is placed on outside catheter proximal end and transition conduit rear end, and feed liquor is arranged with and is positioned at outage front Radially inlet opening, is additionally provided with axially extending bore in transition conduit, that slides in axially extending bore is provided with push rod, conduit and transition conduit it Between be provided with the ram seat connected firmly with feed liquor set, between conduit and ram seat, be provided with back-moving spring；Between sleeve pipe and nozzle boss Endoporus in be provided with check valve；The nozzle boss first line of a couplet is connected to the shower nozzle communicated with its endoporus；Outer tube is connected with and communicates with annular space Discharging tube.

2. double-layer injection pumping device as claimed in claim 1, it is characterised in that be externally provided with at inner pipe joint and be positioned at upper connecting tube Interior check-valves, check-valves includes the non-return valve seat being installed in outside inner pipe joint, slides and be located at non-return valve seat rear inner pipe joint On non-return valve core, the compression spring be located between non-return valve core and the shaft shoulder of inner pipe joint, non-return valve seat is provided with axial logical Fluid apertures, non-return valve seat is provided with the sealing cone matched with non-return valve core.

3. double-layer injection pumping device as claimed in claim 1, it is characterised in that described check valve includes being fixed in sleeve pipe One-way valve seat, slide the nonreturn valve core being located in one-way valve seat endoporus, the valve gap that is coupled to nonreturn valve core front end, valve gap is positioned at list Outside valve seat, in the nozzle boss in valve gap front, it is provided with compression spring；End face and endoporus thereafter it is communicated with in one-way valve seat Rear inlet opening, nonreturn valve core is communicated with the advance water hole of its cylindrical and front end face, and rear inlet opening and advance water hole are axially Upper part is overlapping.

4. double-layer injection pumping device as claimed in claim 3, it is characterised in that be provided with in the compression spring in valve gap front Prelocalization set.

5. the double-layer injection pumping device as described in Claims 1-4 is arbitrary, it is characterised in that in the connecting tube at ram seat rear Being cased with outward rear positioning sleeve, described back-moving spring is between conduit and rear positioning sleeve.