CN219654656U - Automatic liquid-discharging well washer - Google Patents
Automatic liquid-discharging well washer Download PDFInfo
- Publication number
- CN219654656U CN219654656U CN202321000597.0U CN202321000597U CN219654656U CN 219654656 U CN219654656 U CN 219654656U CN 202321000597 U CN202321000597 U CN 202321000597U CN 219654656 U CN219654656 U CN 219654656U
- Authority
- CN
- China
- Prior art keywords
- central tube
- sleeved
- sliding sleeve
- tray
- rubber cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007599 discharging Methods 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 11
- 238000011010 flushing procedure Methods 0.000 abstract description 6
- 238000005406 washing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model belongs to the technical field of oilfield equipment, and particularly relates to an automatic liquid-discharging type well washer which comprises a coupling, a central pipe, a baffle plate, a steel ball, a sealing ring, a ball seat, a control ring, a sliding sleeve, a one-way rubber cylinder, a choke ring, a tray, a limiting pin, a spring, a connecting sleeve and a lower joint; the coupling is connected with the central tube; the baffle is provided with four small holes and welded on the upper part of the central tube; the ball seat is welded in the central tube; the control ring is sleeved on the central tube; the lower part of the central tube is provided with a strip hole, the sliding sleeve is sleeved on the lower part of the central tube, the one-way rubber cylinder is sleeved on the sliding sleeve, the choke ring is sleeved in the annular cavity between the one-way rubber cylinder and the sliding sleeve after being coiled into a cylinder shape, the lower end of the one-way rubber cylinder is positioned on the tray, the tray is in threaded connection with the upper end of the connecting sleeve, and the lower end of the connecting sleeve is in threaded connection with the lower joint; the limiting pin is inserted into the pin hole of the tray; the spring is sleeved in the annular cavity of the connecting sleeve and the central tube. The automatic liquid discharging device has the function of automatic liquid discharging in well flushing, and improves the efficiency and quality of well flushing.
Description
Technical Field
The utility model belongs to the technical field of oilfield production equipment, and particularly relates to an automatic liquid-discharging type well washer.
Background
In the production process of the oil pumping well or the screw pump well, wax is often deposited on the inner wall of the oil pipe, and the wax must be removed by a hot water well washing mode, so that a well washer is needed for preventing sewage from entering the stratum. The existing well washer can not realize automatic drainage when repairing the well and lifting the oil pipe.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an automatic liquid-discharging type well washer. Has the function of automatic liquid discharge.
The utility model adopts the technical scheme that: an automatic liquid-discharging type well washer comprises a coupling, a central tube, a baffle plate, a steel ball, a sealing ring, a ball seat, a control ring, a sliding sleeve, a one-way rubber cylinder, a choke ring, a tray, a limit pin, a spring, a connecting sleeve and a lower joint; the coupling is in threaded connection with the upper end of the central tube; four small holes are formed in the baffle plate, the baffle plate is arranged in the central tube, and the baffle plate is fixed on the upper part of the central tube through welding; the ball seat is arranged below the baffle plate, the ball seat is fixed in the central tube through welding, the steel ball is positioned on the ball seat, the ball seat is embedded in the central tube in a tight fit mode, and then two process holes for welding the ball seat are drilled in the central tube; the control ring is sleeved on the central tube; the lower part of the central tube is provided with two strip holes, the sliding sleeve is sleeved at the lower part of the central tube provided with the strip holes, the sliding sleeve is sleeved at the lower end of the central tube and is clamped on a step (the lower part of the central tube is formed by turning a pipeline with the outer diameter of 73mm into a lathe with the outer diameter of 72mm, and a step is reserved), the one-way rubber cylinder is sleeved on the sliding sleeve, the choke ring is fan-shaped after being unfolded, the choke ring is sleeved in an annular cavity between the one-way rubber cylinder and the sliding sleeve after being wound into a cylinder shape, the lower end of the one-way rubber cylinder is positioned on a tray, the tray is in threaded connection with the upper end of the connecting sleeve, and the lower end of the connecting sleeve is in threaded connection with the lower joint; the number of the limit pins is two, and the limit pins are inserted into the pin holes of the tray; the spring is sleeved in the annular cavities of the connecting sleeve and the central tube, the top end of the spring is propped against the sliding sleeve, and the bottom end of the spring is seated on the lower joint.
Further, the ball seat is sealed by a sealing ring.
Further, two long grooves capable of inserting the limit pins are formed in the lower portion of the sliding sleeve.
The utility model has the beneficial effects that: an automatic liquid-discharging well washer is provided. The automatic liquid discharging device has the function of automatic liquid discharging in well flushing, and improves the efficiency and quality of well flushing. The structure design is reasonable, safe and reliable, and economical and applicable.
Drawings
FIG. 1 is a schematic cross-sectional structure of a first embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is an enlarged view of a portion of B in FIG. 1;
FIG. 4 is an enlarged view of a portion of C in FIG. 1;
fig. 5 is a partial enlarged view of D in fig. 1;
FIG. 6 is an expanded view of the blocker ring in accordance with the first embodiment.
Detailed Description
Referring to the figures, the automatic liquid-discharging type well washer comprises a coupling 1, a central tube 2, a baffle 3, a steel ball 4, a sealing ring 5, a ball seat 6, a control ring 7, a sliding sleeve 8, a one-way rubber cylinder 9, a choke ring 10, a tray 11, a limit pin 12, a spring 13, a connecting sleeve 14 and a lower joint 15; the coupling is in threaded connection with the upper end of the central tube; four small holes are formed in the baffle plate, the baffle plate is arranged in the central tube, and the baffle plate is fixed on the upper part of the central tube through welding; the ball seat is arranged below the baffle plate, the ball seat is fixed in the central tube through welding, the steel ball is positioned on the ball seat, the ball seat is embedded in the central tube in a tight fit mode, and then two process holes for welding the ball seat are drilled in the central tube; the control ring is sleeved on the central tube; the lower part of the central tube is provided with two strip holes, the sliding sleeve is sleeved at the lower part of the central tube provided with the strip holes, the sliding sleeve is sleeved at the lower end of the central tube and is clamped on a step (the lower part of the central tube is formed by turning a pipeline with the outer diameter of 73mm into a lathe with the outer diameter of 72mm, and a step is reserved), the one-way rubber cylinder is sleeved on the sliding sleeve, the choke ring is fan-shaped after being unfolded, the choke ring is sleeved in an annular cavity between the one-way rubber cylinder and the sliding sleeve after being wound into a cylinder shape, the lower end of the one-way rubber cylinder is positioned on a tray, the tray is in threaded connection with the upper end of the connecting sleeve, and the lower end of the connecting sleeve is in threaded connection with the lower joint; the number of the limit pins is two, and the limit pins are inserted into the pin holes of the tray; the spring is sleeved in the annular cavities of the connecting sleeve and the central tube, the top end of the spring is propped against the sliding sleeve, and the bottom end of the spring is seated on the lower joint; the ball seat is sealed by a sealing ring; two long grooves capable of inserting the limiting pins are formed in the lower portion of the sliding sleeve, and when the sliding sleeve slides downwards for 30mm, two long strip holes in the central tube are exposed.
The well washer is arranged at the lower end of the lower sieve tube of the oil well pump, and the sieve tube is arranged at the lower end of the well washer. When the well is completed, the control ring, the unidirectional rubber cylinder and the sleeve are in interference fit, so that the control ring, the unidirectional rubber cylinder and the choke ring in the rubber cylinder are stopped at the upper end of the well washer, and do not reciprocate up and down along with the oil pipe when the oil pumping unit works normally. When the well is washed, the well washing liquid descends from the sleeve, the unidirectional rubber cylinder descends under the action of the choke ring and is seated in the tray to realize sealing, and as the built-in check valve is arranged at the upper end of the well washer, the well washing liquid can only enter the pump cylinder from the screen pipe at the upper side to return to the ground, so that the function of a non-pressure oil layer of the well washing is realized, and after the pumping unit is normally started, the control ring and the rubber cylinder are stopped at the upper end of the well washer. When the well is repaired again and the oil pipe is lifted, the main body central tube of the well washer ascends, the rubber cylinder is seated in the tray, the control ring presses the sliding sleeve to descend under the action of the sleeve, the long strip holes on the central tube are exposed, and liquid in the sleeve flows back into the well from the long strip holes through the screen pipe at the lower side, so that the purpose of automatic liquid leakage is achieved. The automatic liquid discharging device has the function of automatic liquid discharging in well flushing, and improves the efficiency and quality of well flushing. The structure design is reasonable, safe and reliable, and economical and applicable.
Claims (3)
1. An automatic liquid-discharging type well washer, which is characterized in that: the automatic liquid-discharging well washer comprises a coupling, a central tube, a baffle plate, a steel ball, a sealing ring, a ball seat, a control ring, a sliding sleeve, a one-way rubber cylinder, a choke ring, a tray, a limit pin, a spring, a connecting sleeve and a lower joint; the coupling is in threaded connection with the upper end of the central tube; four small holes are formed in the baffle plate, the baffle plate is arranged in the central tube, and the baffle plate is fixed on the upper part of the central tube through welding; the ball seat is arranged below the baffle plate, the ball seat is fixed in the central tube through welding, and the steel ball is positioned on the ball seat; the control ring is sleeved on the central tube; the lower part of the central tube is provided with two strip holes, the sliding sleeve is sleeved on the lower part of the central tube provided with the strip holes, the one-way rubber cylinder is sleeved on the sliding sleeve, the choke ring is fan-shaped after being unfolded, the choke ring is sleeved in a ring cavity between the one-way rubber cylinder and the sliding sleeve after being wound into a cylinder shape, the lower end of the one-way rubber cylinder is positioned on the tray, the tray is in threaded connection with the upper end of the connecting sleeve, and the lower end of the connecting sleeve is in threaded connection with the lower joint; the number of the limit pins is two, and the limit pins are inserted into the pin holes of the tray; the spring is sleeved in the annular cavities of the connecting sleeve and the central tube, the top end of the spring is propped against the sliding sleeve, and the bottom end of the spring is seated on the lower joint.
2. An automatic drain well washer according to claim 1, wherein: the ball seat is sealed through a sealing ring.
3. An automatic drain well washer according to claim 1, wherein: two long grooves capable of inserting the limit pins are formed in the lower portion of the sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000597.0U CN219654656U (en) | 2023-04-28 | 2023-04-28 | Automatic liquid-discharging well washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321000597.0U CN219654656U (en) | 2023-04-28 | 2023-04-28 | Automatic liquid-discharging well washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654656U true CN219654656U (en) | 2023-09-08 |
Family
ID=87862084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321000597.0U Active CN219654656U (en) | 2023-04-28 | 2023-04-28 | Automatic liquid-discharging well washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654656U (en) |
-
2023
- 2023-04-28 CN CN202321000597.0U patent/CN219654656U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |