CN212265676U

CN212265676U - Screw propulsion type gate slip replacing device

Info

Publication number: CN212265676U
Application number: CN202020210684.9U
Authority: CN
Inventors: 张利阳; 魏攀; 刘金凤; 王德俏; 赵亮亮; 周志超; 沈孝帅; 李梦桃; 柳姝; 曾彦; 韩伟志; 方香; 张航
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-01-01
Anticipated expiration: 2030-02-26

Abstract

The utility model discloses a screw propulsion gate slips changes device, including outer sleeve (1) of establishing from the extroversion in proper order, plug (2) and long connecting rod (3), the one end of outer sleeve (1) is equipped with clamp bulge loop (11) outward, long connecting rod (3) contain the long-rod body (31) and annular aerify rubber pad (36), plug (2) and outer sleeve (1) and the equal threaded connection of long-rod body (31), be equipped with axial gas injection pore (34) in the long-rod body (31), outside the one end of the long-rod body (31) was located to aerify rubber pad (36) cover, aerify rubber pad (36) and be located the outside of clamp bulge loop (11), when to axial gas injection pore (34) interior gas injection, the external diameter of aerifing rubber pad (36) can the grow. The spiral propulsion type gate slip replacing device can replace the gate slips under the low-pressure condition that a well and a pipeline are not stopped.

Description

Screw propulsion type gate slip replacing device

Technical Field

The utility model relates to an oil development equipment field, specific is a device is changed to screw propulsion formula gate slips.

Background

The gate for the oil field is various, has multiple models such as 250, 350, and the wide application is on oil recovery, heat is annotated and oil field admission, gathering and transportation pipeline, nevertheless because long-time operation is in high-pressure saline and alkaline environment, gate and fixed slips can appear the flashboard and close not tightly or slips and lose the phenomenon, bring the difficulty for on-the-spot production management, cause environmental pollution hidden danger. If the gate slips are maintained and replaced, the well and the pipeline need to be stopped, and the normal production of the oil well is influenced.

SUMMERY OF THE UTILITY MODEL

In order to change the gate slips under the circumstances of not stopping the well, stopping the pipeline, the utility model provides a device is changed to screw propulsion formula gate slips, this device is changed to screw propulsion formula gate slips can be in the low pressure circumstances of not stopping the well, stopping the pipeline change the gate slips.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a screw propulsion gate slips changes device, includes the outer sleeve of establishing from the extroversion in proper order, plug and long connecting rod, the one end of outer sleeve is equipped with the clamp bulge loop outward, long connecting rod contains the long rod body and annular inflatable rubber pad, plug and outer sleeve and the equal threaded connection of long rod body, the internal axial gas injection pore that is equipped with of long rod, inflatable rubber pad cover locates outside the one end of the long rod body, inflatable rubber pad is located the outside of clamp bulge loop, when the gas injection in to axial gas injection pore, inflatable rubber pad's external diameter can the grow.

The axis of the outer sleeve, the axis of the screwed plug and the axis of the long rod body are superposed, the screwed plug is sleeved in the other end of the outer sleeve, and an internal thread section is arranged in the other end of the outer sleeve.

The side wall of the outer sleeve is provided with an outer joint which is positioned between the inner thread section and the clamp convex ring.

Two external connectors which are symmetrical up and down are arranged on the side wall of the outer sleeve, and the two external connectors are respectively connected with a pressure gauge and an emptying valve.

The other end overcoat of the long body of rod is equipped with the end cap, is equipped with the gas injection external tapping on the end cap, can be to the interior gas injection of axial gas injection pore through the gas injection external tapping.

The end cap is a cylindrical structure with one end closed and the other end open, the long rod body is in threaded connection with the end cap, and the gas injection external interface is connected with the closed end of the end cap.

The axial line of axial gas injection pore is parallel with the axis of the long rod body, and the distance between the axial line of axial gas injection pore and the axis of the long rod body is 1mm to 10 mm.

One end of the long rod body is in a closed state, an annular baffle is fixedly sleeved outside one end of the long rod body, an annular groove is formed in the outer peripheral surface of the annular baffle, the inflatable rubber pad is sleeved in the annular groove of the annular baffle in a matched mode, and the inflatable rubber pad is connected with the annular baffle in a sealing mode.

A radial outer through hole for communicating the annular groove with the axial gas injection pore passage is arranged in the annular baffle plate, and when the inflatable rubber pad is in an expansion state, the outer diameter of the inflatable rubber pad is larger than that of the annular baffle plate; when the inflatable rubber pad is in a natural state, the outer diameter of the inflatable rubber pad is smaller than or equal to that of the annular baffle.

The utility model has the advantages that:

1. is convenient to carry.

2. The assembly is quick.

3. Without stopping the well.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic view of an outer sleeve.

Fig. 2 is a schematic view of a long link.

Fig. 3 is a schematic view of a screw-propelled gate slip exchanging apparatus.

Fig. 4 is a schematic view showing a state in which the screw propulsion type gate slip replacing device is used.

1. An outer sleeve; 2. plugging with a thread; 3. a long connecting rod; 4. a gate;

11. a hoop convex ring; 12. an outer joint; 13. an internal thread section;

31. a long rod body; 32. an end cap; 33. an air injection external interface; 34. an axial gas injection duct; 35. an annular baffle; 36. an inflatable rubber pad.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The utility model provides a screw propulsion gate slips replacement device, include the outer sleeve 1 of establishing from the extroversion in proper order, plug 2 and long connecting rod 3, the one end of outer sleeve 1 is equipped with clamp bulge loop 11 outward, long connecting rod 3 contains the long body of rod 31 and annular rubber pad 36 that aerifys, plug 2 and outer sleeve 1 and the equal threaded connection of long body of rod 31, be equipped with axial gas injection pore 34 in the long body of rod 31, aerify outside the one end that long body of rod 31 was located to rubber pad 36 cover, aerify the outside that rubber pad 36 is located clamp bulge loop 11, when the gas injection in to axial gas injection pore 34, the external diameter of aerifing rubber pad 36 can the grow, as shown in fig. 1 to fig. 3.

In this embodiment, the outer sleeve 1 has a cylindrical structure with both open ends, the plug 2 has a cylindrical structure with both open ends, and the long rod 31 has a cylindrical structure with one closed end and the other open end. The axis of the outer sleeve 1, the axis of the plug 2 and the axis of the long rod body 31 are superposed, the plug 2 is sleeved in the other end of the outer sleeve 1, and the inner thread section 13 is arranged in the other end of the outer sleeve 1. The inner surface of the plug 2 is provided with internal threads, and the outer surface of the plug 2 is provided with external threads.

In this embodiment, the outer joint 12 is provided on the sidewall of the outer sleeve 1, and the outer joint 12 is located between the inner threaded section 13 and the collar 11. The outer joint 12 communicates the inside and outside of the outer sleeve 1. The internal diameter of outer sleeve 1 is greater than the external diameter of the long body of rod 31, and long body of rod 31 can be the horizontality, forms annular cavity between outer sleeve 1 and the long body of rod 31. Two external joints 12 which are symmetrical up and down are arranged on the side wall of the outer sleeve 1, and the two external joints 12 are respectively connected with a pressure gauge and an emptying valve.

In this embodiment, an end cap 32 is sleeved on the other end of the long rod 31, and an air injection external interface 33 is provided on the end cap 32, so that air can be injected into the axial air injection duct 34 through the air injection external interface 33. The end cap 32 is a cylindrical structure with one end closed and the other end open, the long rod 31 is connected with the end cap 32 in a thread sealing way, and the air injection external interface 33 is connected with the closed end of the end cap 32.

In the present embodiment, the axis of the axial gas injection hole 34 is parallel to the axis of the long rod body 31, the axis of the axial gas injection hole 34 is offset from the axis of the long rod body 31, and the distance between the axis of the axial gas injection hole 34 and the axis of the long rod body 31 may be 1mm to 10 mm.

In this embodiment, the one end of the long rod 31 is further fixedly sleeved with an annular baffle 35, the outer peripheral surface of the annular baffle 35 is provided with an annular groove, the inflatable rubber pad 36 is sleeved in the annular groove of the annular baffle 35 in a matching manner, and the inflatable rubber pad 36 is connected with the annular baffle 35 in a sealing manner. The long rod 31 is connected with the ring-shaped baffle 35 in a sealing way, for example, the long rod 31 is welded with the ring-shaped baffle 35. The function of the annular baffle 35 is to axially position the pneumatic rubber pad 36. The outer diameter of the annular baffle 35 is less than or equal to the inner diameter of the outer sleeve 1.

In this embodiment, a radial outer through hole is formed in the annular baffle 35, a radial inner through hole is formed in the side wall of the long rod body 31, and the annular groove of the annular baffle 35 is communicated with the axial gas injection duct 34 through the radial outer through hole and the radial inner through hole in sequence. When high-pressure gas is injected into the axial gas injection duct 34, the inflatable rubber cushion 36 expands radially, and the inflatable rubber cushion 36 is in an expanded state. When high-pressure gas is not injected into the axial gas injection duct 34 (or the air pressure in the axial gas injection duct 34 is a standard atmospheric pressure), the inflatable rubber gasket 36 does not expand or contract radially, and the inflatable rubber gasket 36 is in a natural state.

When the inflatable rubber pad 36 is in the expanded state, the outer diameter of the inflatable rubber pad 36 is larger than the outer diameter of the annular baffle 35, and the inner diameter of the inflatable rubber pad 36 is smaller than the outer diameter of the annular baffle 35; when the pneumatic rubber pad 36 is in a natural state, the outer diameter of the pneumatic rubber pad 36 is smaller than or equal to the outer diameter of the annular baffle 35.

Screw propulsion formula gate slips is changed entry end and the exit end of oil field gate that device is directed against all are equipped with the flange, for example 250, 350 type well head gate. The outer diameter of the clamp convex ring 11 is approximately equal to that of an outlet end flange of the oilfield gate. The outside diameter of the annular baffle 35 is approximately equal to the inside diameter of the inlet end of the oilfield gate. The length of the long connecting rod 3 is more than 1.5 to 2 times of the length of the gate, and the length of the long connecting rod 3 is more than 1.5 to 2 times of the length from the inlet end to the outlet end of the gate.

The operation of the screw propulsion type gate slip replacing device will be described.

1. The collar 11 of the outer sleeve 1 is first fixed to the outlet flange of the gate 4 to be replaced (e.g. a 250-well gate).

2. 2 external joints 12 are respectively connected with a pressure gauge and an emptying valve.

3. The annular baffle 35 of the long link 3 is placed inside the outer sleeve 1.

4. The pipe plug 2 is sleeved outside the long connecting rod 3.

5. The outer sleeve 1 is sleeved with the plug 2 and the long connecting rod 3.

6. The end cap 32 of the upper long link 3 is mounted and then rotated to push the long link 3 inward (i.e., move in the right direction in fig. 3), opening the shutter of the shutter 4.

7. After the ring-shaped baffle 35 of the long connecting rod 3 is predicted to pass through the gate to reach the other side pipeline or the inlet end of the gate 4, high-pressure gas is filled into the axial gas injection pore passage 34 through the gas injection external interface 33, so that the gas-filled rubber pad 36 is inflated to expand radially and set. As shown in fig. 4, the left and right sides are sealed off by the pneumatic rubber gasket 36.

8. The slips of the lower gate 4 are removed and replaced with a wrench or the like.

9. After the replacement is finished, the air pressure in the axial air injection pore canal 34 is removed, the long connecting rod 3 is lifted, namely, the long connecting rod 3 moves leftwards in the figure 4, and at the moment, the emptying valve on the outer joint 12 is opened, and the internal oil-gas-water mixed liquid is discharged.

10. After the long connecting rod 3 is pulled out of the gate 4, the gate plate of the gate 4 is closed, the outer sleeve 1 is disassembled, the outer sleeve 1 is separated from the gate 4, and the operation is finished.

In addition, the screw-type gate slip replacing device can replace other components (except slips) on the gate 4 without stopping the well, and the screw-type gate slip replacing device can be also called as a screw-type gate maintenance device. The screw-propelled gate slip replacing device, which may also be referred to as a "screw-propelled gate slip replacing device", may replace even the entire gate without stopping the well.

The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.

Claims

1. The utility model provides a device is changed to screw propulsion gate slips, a serial communication port, device is changed to screw propulsion gate slips includes outer sleeve (1), plug (2) and long connecting rod (3) of establishing from the extroversion in proper order to the cover, the one end of outer sleeve (1) is equipped with clamp bulge loop (11) outward, long connecting rod (3) contain the long body of rod (31) and annular inflatable rubber pad (36), plug (2) and outer sleeve (1) and the equal threaded connection of long rod (31), be equipped with axial gas injection pore (34) in long rod (31), inflatable rubber pad (36) cover is located outside the one end of long rod (31), inflatable rubber pad (36) are located the outside of clamp bulge loop (11), when gas injection in to axial gas injection pore (34), the external diameter of inflatable rubber pad (36) can the grow.

2. The screw-propelling type gate slip replacing device according to claim 1, wherein the axis of the outer sleeve (1), the axis of the plug (2) and the axis of the long rod body (31) are coincident, the plug (2) is sleeved in the other end of the outer sleeve (1), and the inner thread section (13) is arranged in the other end of the outer sleeve (1).

3. A screw-propelled gate slip replacement device according to claim 2, wherein the outer joint (12) is provided on the side wall of the outer sleeve (1), the outer joint (12) being located between the inner threaded section (13) and the collar (11).

4. A screw-propelling gate slip replacing device according to claim 3, wherein the side wall of the outer sleeve (1) is provided with two outer connectors (12) which are symmetrical up and down, and the two outer connectors (12) are respectively connected with a pressure gauge and a vent valve.

5. The screw-propelled gate slip replacing device according to claim 1, wherein an end cap (32) is sleeved outside the other end of the long rod body (31), an air injection external interface (33) is arranged on the end cap (32), and air can be injected into the axial air injection pore canal (34) through the air injection external interface (33).

6. The screw-propelled gate slip exchanging device according to claim 5, wherein the end cap (32) is a cylindrical structure with one end closed and the other end open, the long rod body (31) is in threaded connection with the end cap (32), and the air injection external port (33) is connected with the closed end of the end cap (32).

7. The screw-propelled gate slip replacement device according to claim 1, wherein the axis of the axial gas injection hole (34) is parallel to the axis of the long rod (31), and the distance between the axis of the axial gas injection hole (34) and the axis of the long rod (31) is 1mm to 10 mm.

8. The screw-propelling gate slip replacing device according to claim 1, wherein one end of the long rod (31) is in a closed state, an annular baffle (35) is fixedly sleeved outside the one end of the long rod (31), an annular groove is formed in the outer peripheral surface of the annular baffle (35), the inflatable rubber gasket (36) is sleeved in the annular groove of the annular baffle (35) in a matching manner, and the inflatable rubber gasket (36) is connected with the annular baffle (35) in a sealing manner.

9. The screw-propelled gate slip replacing device according to claim 8, wherein a radial outer through hole communicating the annular groove and the axial gas injection hole (34) is formed in the annular baffle (35), and when the inflatable rubber gasket (36) is in an expanded state, the outer diameter of the inflatable rubber gasket (36) is larger than that of the annular baffle (35); when the inflatable rubber pad (36) is in a natural state, the outer diameter of the inflatable rubber pad (36) is smaller than or equal to that of the annular baffle (35).