CN220434713U - High-pressure-resistant continuous dosing device for oil well cleaning - Google Patents

Abstract

The utility model relates to the technical field of oil exploitation, in particular to a high-pressure-resistant continuous dosing device for oil well cleaning. The technical proposal comprises: sealing shell, piston and spacer sleeve, sealing shell's outside fixed mounting has the connection valve body, and sealing shell's one side connection valve body top fixedly connected with first pipeline valve, and sealing shell's inside sliding is installed the piston, and the sealing shell top in the piston outside has cup jointed the spacer sleeve, and the inside slidable mounting of spacer sleeve has the spacing ring that corresponds with the piston, and the outside screw thread of spacer sleeve installs the adjustment cap that corresponds with the piston, and the top movable mounting of piston has the movable sleeve. According to the utility model, through the mutual matching between the piston and the limiting ring, the dosing operation can be realized without connecting additional conveying equipment, and through the mutual matching between the adjusting cap, the positioning sleeve and the movable sleeve, the dosing amount can be conveniently adjusted, the effective stroke of the piston can be ensured, and the accurate dosing can be realized.

Description

High-pressure-resistant continuous dosing device for oil well cleaning

Technical Field

The utility model relates to the technical field of petroleum exploitation, in particular to a high-pressure-resistant continuous dosing device for cleaning an oil well.

Background

The oil well is used for exploiting petroleum, is an eyelet drilled by a drilling method, is drilled by a well distribution system planned according to oil field development, and is a channel from a bottom of the well to a top of the well, harmful gas is easy to generate in the process of exploiting petroleum in the oil well, medicines are required to be added in the oil well to improve the performance of crude oil and absorb the harmful gas, and when medicines are added in the oil well, the oil well is required to be used for cleaning a high-pressure-resistant continuous medicine adding device.

The existing solution is to add the medicine in the oil well through constantly, and the harmful gas in the oil gas can be absorbed to the medicine of adding, avoids harmful gas to give off, but current dosing device need utilize electric energy drive delivery pump to carry the medicine when adding the medicine, and inconvenient regulation to the quantity of adding the medicine according to the exploitation demand simultaneously causes the condition of a large amount of extravagant medicines easily when constantly adding the medicine.

Disclosure of Invention

The utility model aims to provide a high-pressure-resistant continuous dosing device for oil well cleaning, to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high pressure resistant continuous dosing device of oil well washs, includes seal housing, piston and spacer sleeve, seal housing's outside fixed mounting has the connection valve body, the first pipeline valve of connection valve body top fixedly connected with of seal housing one side, seal housing's inside sliding mounting has the piston, the spacer sleeve has been cup jointed at the seal housing top in the piston outside, the inside slidable mounting of spacer sleeve has the spacing collar that corresponds with the piston, the adjusting cap that corresponds with the piston is installed to the outside screw thread of spacer sleeve, the top movable mounting of piston has the movable sleeve, the top fixedly connected with fixed head of movable sleeve, fixed mounting has thrust spring between fixed head and the piston.

Through when oil exploitation in the oil well, utilize the gravity of beam-pumping unit down, can promote the piston and move down, can compress the medicament in the sealed casing, in injecting the oil well with the medicament, upward move through promoting the spacing ring and reset, can promote the piston in step and reset, can make the piston accomplish the suction of medicine when upwards moving and resetting, need not to connect extra conveying equipment both can realize dosing operation, can conveniently carry out reciprocating motion from top to bottom to the medicine through driving the piston, can conveniently pour into the medicine in succession, through rotating the adjusting cap, can make the adjusting cap reciprocate along the locating sleeve, can adjust the stroke of piston downwardly moving, can adjust the cavity volume that forms in the sealed casing, can conveniently adjust the volume of dosing, when moving the movable sleeve downwardly moving through pressing, utilize thrust action of thrust spring, can compensate the stroke of beam-pumping unit, when making the beam-pumping unit move the skew, still can guarantee the effective stroke of piston, can realize accurate dosing.

Preferably, a connecting seat is fixedly arranged on the inner side of the connecting valve body, and a connecting rod is fixedly connected to the bottom of the connecting seat. The connecting seat can be used for fixing the connecting rod and the connecting valve body, and the connecting seat can be supported by the connecting rod.

Preferably, a second pipeline valve is fixedly arranged at the bottom of the connecting valve body at one side of the sealing shell, and external threads are fixedly connected to the outer sides of the second pipeline valve and the first pipeline valve. The external pipeline can be conveniently connected with the first pipeline valve and the second pipeline valve through the external threads, the first pipeline valve is connected with the external medicine box, and the second pipeline valve is connected with the oil well.

Preferably, the limiting ring and the positioning sleeve are movably arranged through a return spring, and the return spring is positioned at the outer side of the piston. The limiting ring can be pushed to move upwards to reset under the thrust action of the reset spring.

Preferably, the adjusting cap and the positioning sleeve are installed through threads of the thread group, and the adjusting cap and the positioning sleeve are fixed through the fixing disc. Through rotating the adjusting cap, the adjusting cap can move up and down along the locating sleeve by utilizing the meshing between the thread groups, and the adjusting cap and the locating sleeve can be fixed by rotating the fixing disc.

Preferably, both sides of the movable sleeve are provided with sliding grooves, and both sides of the piston are fixedly provided with slide piles corresponding to the sliding grooves. The sliding piles slide up and down along the sliding grooves, so that the movable sleeve can slide up and down conveniently.

Compared with the prior art, the utility model has the beneficial effects that:

1. through being provided with the cooperation between piston and the spacing ring, through when exploiting the oil in the oil well, utilize the gravity of beam-pumping unit decline, can promote the piston and move downwards, can compress the medicament in the sealed casing, in the oil well is annotated to the medicament, utilize reset spring's thrust effect, can promote spacing ring upward movement and reset, can promote the piston in step and reset, can make the piston accomplish the suction of medicine when upwards moving and resetting, need not to connect extra conveying equipment both can realize the dosing operation.

2. Through being provided with the mutually supporting between adjusting cap, spacer bush and the movable sleeve, through rotating the adjusting cap, utilize the meshing between the screw thread group, can make the adjusting cap reciprocate along the spacer bush, can adjust the stroke that the piston moved down, can adjust the cavity volume that forms in the seal housing, can conveniently adjust the volume of dosing, when moving down through pressing movable sleeve, thrust spring elasticity is greater than reset spring, utilize thrust spring's thrust effect, can compensate the stroke of beam-pumping unit, when making the beam-pumping unit operation have the deviation, still can guarantee the effective stroke of piston, can realize accurate dosing.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cut-away view of a movable sleeve according to the present utility model;

FIG. 3 is a cut-away view of a positioning sleeve of the present utility model;

fig. 4 is a cut-away view of the seal housing of the present utility model.

In the figure: 1. a seal housing; 2. a connecting seat; 201. a connecting rod; 3. connecting the valve body; 301. a first pipeline valve; 302. a second pipeline valve; 303. an external thread; 4. a piston; 401. slide piles; 402. a thrust spring; 5. a positioning sleeve; 501. a thread group; 502. a return spring; 503. a limiting ring; 6. an adjustment cap; 601. a fixed plate; 7. a movable sleeve; 701. a chute; 702. the head is fixed.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the high-pressure-resistant continuous dosing device for oil well cleaning provided by the utility model comprises a sealing shell 1, a piston 4 and a positioning sleeve 5, wherein a connecting valve body 3 is fixedly arranged on the outer side of the sealing shell 1, a first pipeline valve 301 is fixedly connected to the top of the connecting valve body 3 on one side of the sealing shell 1, a piston 4 is slidably arranged on the inner side of the sealing shell 1, a positioning sleeve 5 is sleeved on the top of the sealing shell 1 on the outer side of the piston 4, a limiting ring 503 corresponding to the piston 4 is slidably arranged in the positioning sleeve 5, and an adjusting cap 6 corresponding to the piston 4 is arranged on the outer side thread of the positioning sleeve 5;

the top movable mounting of piston 4 has movable sleeve 7, the top fixedly connected with fixed head 702 of movable sleeve 7, fixed mounting has thrust spring 402 between fixed head 702 and the piston 4, the connection valve body 3 bottom fixed mounting of seal housing 1 one side has second pipeline valve 302, and the outside fixedly connected with external screw thread 303 of second pipeline valve 302 and first pipeline valve 301, through reset spring 502 movable mounting between spacing ring 503 and the position sleeve 5, and reset spring 502 is in the outside of piston 4, install through screw thread group 501 screw thread between adjustment cap 6 and the position sleeve 5.

The working principle of the oil well cleaning high-pressure-resistant continuous dosing device based on the embodiment 1 is as follows: the external pipeline can be conveniently connected with the first pipeline valve 301 and the second pipeline valve 302 by utilizing the external threads 303, the first pipeline valve 301 is connected with an external medicine box, and the second pipeline valve 302 is connected with an oil well;

when petroleum in an oil well is mined, the piston 4 can be pushed to move downwards by utilizing the gravity of the descending of the pumping unit, the medicament in the sealing shell 1 can be compressed, the medicament is injected into the oil well, the limiting ring 503 can be pushed to move upwards to reset by utilizing the thrust action of the reset spring 502, the piston 4 can be synchronously pushed to reset, the piston 4 can finish the suction of the medicament when moving upwards to reset, the medicament adding operation can be realized without connecting additional conveying equipment, and the continuous injection of the medicament can be conveniently carried out by driving the piston 4 to reciprocate up and down;

through rotating adjusting cap 6, utilize the meshing between the screw thread group 501, can make adjusting cap 6 reciprocate along locating sleeve 5, can adjust the stroke that piston 4 moved down, can adjust the cavity volume that forms in the sealed casing 1, can conveniently adjust the volume of dosing, when moving down through pressing movable sleeve 7, thrust spring 402 elasticity is greater than reset spring 502, utilize thrust spring 402's thrust effect, can compensate the stroke of beam-pumping unit, when making the beam-pumping unit operation have the deviation, still can guarantee the effective stroke of piston 4, can realize accurate dosing, can contact with fixed head 702 when moving up and down through the beam-pumping unit, can press fixed head 702 to move down.

Example two

As shown in fig. 1 and fig. 2, the present utility model provides a high pressure resistant continuous chemical feeding device for cleaning an oil well, which further includes: the inside of the connecting valve body 3 is fixedly provided with a connecting seat 2, the bottom of the connecting seat 2 is fixedly connected with a connecting rod 201, the adjusting cap 6 and the positioning sleeve 5 are fixed through a fixed disc 601, sliding grooves 701 are formed in the two sides of the movable sleeve 7, and slide piles 401 corresponding to the sliding grooves 701 are fixedly arranged in the two sides of the piston 4.

In this embodiment, as shown in fig. 1, the connecting seat 2 can fix the connecting rod 201 and the connecting valve body 3, and the connecting seat 2 can be supported by the connecting rod 201; as shown in fig. 1, the adjustment cap 6 and the positioning sleeve 5 can be fixed by rotating the fixing plate 601; as shown in fig. 2, the slide pile 401 slides up and down along the slide groove 701, so that the movable sleeve 7 can slide up and down conveniently.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (1)

1. The utility model provides a high pressure resistant continuous dosing device of oil well washs, includes seal housing (1), piston (4) and spacer sleeve (5), its characterized in that: the sealing device comprises a sealing shell (1), wherein a connecting valve body (3) is fixedly arranged on the outer side of the sealing shell (1), a first pipeline valve (301) is fixedly connected to the top of the connecting valve body (3) on one side of the sealing shell (1), a piston (4) is slidingly arranged on the inner side of the sealing shell (1), a positioning sleeve (5) is sleeved on the top of the sealing shell (1) on the outer side of the piston (4), a limiting ring (503) corresponding to the piston (4) is slidingly arranged in the positioning sleeve (5), an adjusting cap (6) corresponding to the piston (4) is arranged on the outer side of the positioning sleeve (5) in a threaded manner, a movable sleeve (7) is movably arranged on the top of the piston (4), a fixed head (702) is fixedly connected to the top of the movable sleeve (7), and a thrust spring (402) is fixedly arranged between the fixed head (702) and the piston (4);

a connecting seat (2) is fixedly arranged on the inner side of the connecting valve body (3), and a connecting rod (201) is fixedly connected to the bottom of the connecting seat (2);

a second pipeline valve (302) is fixedly arranged at the bottom of the connecting valve body (3) at one side of the sealing shell (1), and external threads (303) are fixedly connected to the outer sides of the second pipeline valve (302) and the first pipeline valve (301);

the limiting ring (503) and the positioning sleeve (5) are movably arranged through a return spring (502), and the return spring (502) is positioned at the outer side of the piston (4);

the adjusting cap (6) and the positioning sleeve (5) are installed through threads of the thread group (501), and the adjusting cap (6) and the positioning sleeve (5) are fixed through the fixing disc (601);

sliding grooves (701) are formed in two sides of the movable sleeve (7), and slide piles (401) corresponding to the sliding grooves (701) are fixedly arranged on two sides of the piston (4).