CN213838570U

CN213838570U - Wellhead leakage-proof high-pressure sealing device

Info

Publication number: CN213838570U
Application number: CN202021764260.3U
Authority: CN
Inventors: 张蕊
Original assignee: Tianjin Ziyuan Petroleum Technology Co ltd
Current assignee: Tianjin Ziyuan Petroleum Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-07-30
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a high-pressure seal device is prevented leaking by well head, including backup pad, mounting panel, regulating spindle, deflector and sealed bucket, the backup pad is established altogether two sets ofly, and is two sets of the top welded fastening of backup pad has the mounting panel, the mounting panel internal rotation is connected with the regulating spindle, the regulating spindle is located the threaded groove of having seted up on the outer wall of mounting panel below, the threaded groove external screw thread connection of regulating spindle has adjusting sleeve, adjusting sleeve's bottom welded fastening has the deflector, two sets of screw holes have been seted up to the bottom symmetry of deflector, equal threaded connection has the spliced pole in two sets of threaded holes of deflector bottom, and the bottom of two sets of spliced poles is fixed with sealed bucket. This high-pressure sealing device is prevented leaking by well head not only can guarantee to carry out effectual laminating with the inner wall of well head under the safe prerequisite of operation, carries out effectual sealing to the well head, can carry out effectual fixed and adjustment to sealed bucket according to the user demand moreover.

Description

Wellhead leakage-proof high-pressure sealing device

Technical Field

The utility model belongs to the technical field of the oil well is sealed, concretely relates to high-pressure sealing device is prevented leaking by well head.

Background

At present, blind plate welding seal or threaded casing cap seal is mostly applied to sealing of abandoned and long-stop oil-water well mouths, and is a common sealing mode for abandoned and long-stop oil-water wells. However, in practical field application, in the treatment process of abandoned and long-stop well mouths, due to the defects and limitations of the sealing mode, certain troubles and potential safety hazards are caused to construction. Such as: the well heads of long-stop wells and abandoned wells are not used for a long time, and the oil-water wells sealed by the threaded casing caps are rusted at the connecting positions and cannot be opened; the oil-water well adopting the blind plate sealing mode can not open a well mouth by using a conventional mechanical mode because the blind plate is used for welding and sealing, and the two conditions can only be operated by depending on the welding mode. The electric gas welding operation relates to industrial fire safety, and burn-through and welding leakage are easy to occur in the operation process, so that the sealed oil gas is leaked, a fire disaster is easy to cause, and great potential safety hazards are brought to wellhead equipment and operating personnel.

Therefore, in order to meet the current situation, the design and production of a wellhead leakage-proof high-pressure sealing device are urgently needed to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure seal device is prevented leaking by well head to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-pressure seal device is prevented leaking by well head, includes backup pad, mounting panel, regulating spindle, deflector and sealed bucket, the backup pad is established two sets ofly altogether the top welded fastening of backup pad has the mounting panel, the mounting panel internal rotation is connected with the regulating spindle, the thread groove has been seted up on the outer wall that the regulating spindle is located the mounting panel below, the thread groove external screw thread connection of regulating spindle has the adjusting sleeve, adjusting sleeve's bottom welded fastening has the deflector, two sets of screw holes have been seted up to the bottom symmetry of deflector, equal threaded connection has the spliced pole in two sets of screw holes of deflector bottom, and the bottom of two sets of spliced poles is fixed with sealed bucket, two sets of screw holes and spliced pole threaded connection that set up in addition are passed through at the top of sealed bucket.

Preferably, a first sealing airbag is fixedly bonded to the outer wall of the sealing barrel, a second sealing airbag is fixedly bonded to the outer wall of the sealing barrel below the first sealing airbag, a first inflation tube and a second inflation tube are mounted at the top of the sealing barrel, the first inflation tube extends into the sealing barrel and is communicated with the first sealing airbag, the second inflation tube extends into the sealing barrel and is communicated with the second sealing airbag, and control valves are mounted on the first inflation tube and the second inflation tube.

Preferably, the outer wall of the lower half part of each of the two groups of supporting plates is fixedly welded with a fixing plate, two groups of threaded holes are formed in the two groups of fixing plates, and expansion bolts are connected in the threaded holes in the two groups of fixing plates in a threaded manner.

Preferably, two sets of all seted up the guide way on the opposite face of backup pad, the mounting groove has all been seted up on the both sides outer wall of deflector, the mounting groove internal rotation of deflector both sides outer wall is connected with the ball, the ball of deflector both sides extends to in the guide way of backup pad to roll in the guide way of backup pad.

Preferably, a through hole is formed in the middle of the top of the mounting plate, a bearing is welded and fixed in the through hole of the mounting plate, the adjusting shaft penetrates through an inner ring of the bearing and is welded and fixed with the inner ring of the bearing, and a turntable is welded and fixed at the top of the adjusting shaft.

The utility model discloses a technological effect and advantage: according to the wellhead leakage-proof high-pressure sealing device, the sealing barrel below the guide plate enters the wellhead by rotating the adjusting shaft, the first sealing air bag and the second sealing air bag are inflated in two directions through the first inflation pipe and the second inflation pipe, and the first sealing air bag and the second sealing air bag are completely attached to the inner wall of the wellhead, so that the wellhead can be effectively sealed on the premise of not generating potential safety hazards; through fixing expansion bolts on the fixed plate subaerial, thereby can fix the position of sealed bucket, and simultaneously, rotate the regulating spindle, can adjust the position of sealed bucket, thereby can be suitable for the demand and can adjust sealed position, high-pressure sealing device is prevented leaking by this well head, not only can guarantee to carry out effectual laminating with the inner wall of well head under the safe prerequisite of operation, carry out effectual sealing to the well head, and can carry out effectual fixed and adjustment to sealed bucket according to the user demand.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a supporting plate 1, a fixing plate 2, a mounting plate 3, an adjusting shaft 4, an adjusting sleeve 5, a guide plate 6, a sealing barrel 7, a sealing air bag I8, a sealing air bag II 9, an inflation tube I10 and an inflation tube II 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless the direction is defined separately, the directions of up, down, left, right, front, back, etc. referred to herein are the directions of up, down, left, right, front, back, etc. in the drawings of the present invention, and are herein incorporated by reference.

The utility model provides a wellhead anti-leakage high-pressure sealing device as shown in figures 1-3, which comprises a supporting plate 1, a mounting plate 3, an adjusting shaft 4, a guide plate 6 and a sealing barrel 7, the supporting plates 1 are arranged in two groups, the top parts of the two groups of supporting plates 1 are fixedly welded with mounting plates 3, an adjusting shaft 4 is rotatably connected in the mounting plate 3, a thread groove is arranged on the outer wall of the adjusting shaft 4 below the mounting plate 3, the thread groove external thread of the adjusting shaft 4 is connected with an adjusting sleeve 5, the bottom of the adjusting sleeve 5 is fixedly welded with a guide plate 6, two groups of threaded holes are symmetrically formed in the bottom of the guide plate 6, connecting columns are in threaded connection in the two groups of threaded holes in the bottom of the guide plate 6, sealing barrels 7 are fixed at the bottoms of the two groups of connecting columns, the top of the sealing barrel 7 is in threaded connection with the connecting column through two groups of threaded holes additionally formed.

Specifically, it is fixed with sealed gasbag one 8 to bond on the outer wall of sealed bucket 7, it is fixed with sealed gasbag two 9 to bond on the outer wall of sealed bucket 7 of sealed gasbag one 8 below, gas tube one 10 and gas tube two 11 are installed to the top of sealed bucket 7, gas tube one 10 extends to in the sealed bucket 7 and is linked together with sealed gasbag one 8, gas tube two 11 extends to in the sealed bucket 7 and is linked together with sealed gasbag two 9, all install the control valve on gas tube one 10 and the gas tube two 11.

Specifically, two sets of all welded fastening has fixed plate 2 on the lower half outer wall of backup pad 1, and is two sets of all seted up two sets of screw holes on the fixed plate 2, two sets of equal threaded connection has expansion bolts in the screw hole on the fixed plate 2.

Specifically, two sets of all seted up the guide way on the opposite face of backup pad 1, the mounting groove has all been seted up on the both sides outer wall of deflector 6, the mounting groove internal rotation of the outer wall of 6 both sides of deflector is connected with the ball, the ball of 6 both sides of deflector extends to in the guide way of backup pad 1 to roll in the guide way of backup pad 1, can enough inject the position that 6 remove of deflector, can make more smoothly that 6 remove between two sets of backup pads 1 of deflector moreover.

Specifically, the through-hole has been seted up to the top intermediate position of mounting panel 3, welded fastening has the bearing in the through-hole of mounting panel 3, regulating spindle 4 passes the inner circle of bearing to with the inner circle welded fastening of bearing, the top welded fastening of regulating spindle 4 has the carousel, regulating spindle 4 passes through the bearing and is connected with mounting panel 3 rotation, can guarantee that regulating spindle 4 does not change at the position of mounting panel 3 when regulating spindle 4 rotates.

The working principle of the wellhead anti-leakage high-pressure sealing device is that when the wellhead anti-leakage high-pressure sealing device is used, the sealing device is moved to a wellhead position, the sealing barrel 7 is enabled to be over against the wellhead, the expansion bolts on the fixing plate 2 are fixed in the ground on two sides of the wellhead, the sealing device is fixed, external pipelines for inflation are respectively fixed on the inflation tube I10 and the inflation tube II 11, the control valves on the inflation tube I10 and the inflation tube II 11 are opened, the adjusting shaft 4 is rotated through the turntable, the adjusting shaft 4 is rotated to drive the adjusting sleeve 5 and the guide plate 6 to descend, the sealing barrel 7 is enabled to descend to a specified position in the wellhead, the inflation tube I10 and the inflation tube II 11 are inflated through the pipelines for inflation, the inflation tube I10 and the inflation tube II 11 respectively convey gas into the sealing air bag I8 and the sealing air bag II 9, so that the gas is tightly attached to the inner wall of the wellhead, and after the wellhead is sealed, and closing the control valves on the first inflation tube 10 and the second inflation tube 11, and taking the external pipeline for inflation down from the first inflation tube 10 and the second inflation tube 11.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a high pressure seal device is prevented leaking by well head, includes backup pad (1), mounting panel (3), regulating spindle (4), deflector (6) and sealed bucket (7), its characterized in that: establish two sets ofly altogether backup pad (1), two sets of the top welded fastening of backup pad (1) has mounting panel (3), mounting panel (3) internal rotation is connected with regulating spindle (4), threaded groove has been seted up on the outer wall that regulating spindle (4) are located mounting panel (3) below, the threaded groove external screw thread connection of regulating spindle (4) has adjusting sleeve (5), the bottom welded fastening of adjusting sleeve (5) has deflector (6), two sets of screw holes have been seted up to the bottom symmetry of deflector (6), equal threaded connection has the spliced pole in two sets of threaded hole of deflector (6) bottom, and the bottom of two sets of spliced poles is fixed with sealed bucket (7), two sets of screw holes and spliced pole threaded connection seted up in addition are passed through at the top of sealed bucket (7).

2. A wellhead leak-proof high pressure seal device as claimed in claim 1, wherein: bonding is fixed with sealed gasbag (8) on the outer wall of sealed bucket (7), bonding is fixed with sealed gasbag two (9) on the outer wall of sealed bucket (7) of sealed gasbag (8) below, gas tube one (10) and gas tube two (11) are installed at the top of sealed bucket (7), gas tube one (10) extend to in sealed bucket (7) and are linked together with sealed gasbag one (8), gas tube two (11) extend to in sealed bucket (7) and are linked together with sealed gasbag two (9), all install the control valve on gas tube one (10) and gas tube two (11).

3. A wellhead leak-proof high pressure seal device as claimed in claim 1, wherein: two sets of all welded fastening has fixed plate (2) on the lower half outer wall of backup pad (1), and is two sets of all seted up two sets of screw holes on fixed plate (2), two sets of equal threaded connection has expansion bolts in the screw hole on fixed plate (2).

4. A wellhead leak-proof high pressure seal device as claimed in claim 1, wherein: two sets of all seted up the guide way on the opposite face of backup pad (1), the mounting groove has all been seted up on the both sides outer wall of deflector (6), the mounting groove internal rotation of deflector (6) both sides outer wall is connected with the ball, the ball of deflector (6) both sides extends to the guide way of backup pad (1) in to roll in the guide way of backup pad (1).

5. A wellhead leak-proof high pressure seal device as claimed in claim 1, wherein: the through-hole has been seted up to the top intermediate position of mounting panel (3), welded fastening has the bearing in the through-hole of mounting panel (3), regulating spindle (4) pass the inner circle of bearing to with the inner circle welded fastening of bearing, the top welded fastening of regulating spindle (4) has the carousel.