CN217030308U

CN217030308U - Anticorrosive seal structure suitable for oil testing tool

Info

Publication number: CN217030308U
Application number: CN202220628091.3U
Authority: CN
Inventors: 张海滨; 寇治梅; 边鑫; 张怀; 王敬禹; 付秋生; 程绍鹏
Original assignee: Daqing Borui Ji Machinery Equipment Manufacturing Co ltd
Current assignee: Daqing Borui Ji Machinery Equipment Manufacturing Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses an anti-corrosion sealing structure suitable for a test oil testing tool, which comprises an upper joint, a lower joint, a sealing assembly and an external monitoring assembly. The utility model utilizes the sealing component to realize double sealing treatment at the joint of the upper joint and the lower joint, solves the sealing problems of high temperature resistance, high pressure resistance, corrosion resistance and the like in a fluid sealing system, solves the problem that the leakage is easily generated by the traditional design of adopting a single sealing ring, and is provided with the reinforced sealing piece at the joint of the upper joint and the lower joint.

Description

Anticorrosive seal structure suitable for oil testing tool

Technical Field

The utility model relates to the technical field related to oil testing tools, in particular to an anti-corrosion sealing structure suitable for an oil testing tool.

Background

The oil testing tools in oil and gas fields all need to use sealing structures, such as a ground measuring tester and a data acquisition system, while some underground instruments (a sampler, an underground pressure gauge and a liquid monitoring head PR testing tool) are always in extremely severe fluid environments, so that the sealing requirements are higher, and rubber is a sealing material widely used in the modern petroleum industry.

With the continuous deepening of oil and gas resource development, the exploitation depth is continuously improved, and the underground working condition is increasingly severe. Harsh working conditions such as high temperature, high pressure, high sulfur content and the like in actual operation provide great challenges for rubber sealing materials, and once sealing failure occurs, not only can the production cost be increased, but also harmful substances can be leaked, and even the personal safety can be threatened.

The prior art has the following defects: the existing sealing structure of the testing tool is simple, does not have good reinforcing and sealing treatment, so the integrity is poor, the leakage condition is easy to occur, the existing sealing structure does not have an external monitoring function, the state of a joint cannot be monitored in real time, even the perfluoro rubber with the best high temperature resistance and chemical resistance often has the sealing leakage problem in the harsh fluid environment of an oil and gas field, particularly, each oil field or even each well has different fluid components and environments, and the selection of a sealing mode and the performance of a sealing material are seriously tested.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-corrosion sealing structure suitable for a testing tool for testing oil, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an anticorrosive seal structure suitable for formation testing tool, includes top connection, lower clutch, seal assembly and outside monitoring subassembly, top connection, lower clutch are connected with equipment respectively, seal assembly installs top connection, lower clutch junction department, the sealed cover of outside monitoring subassembly is established in top connection, lower clutch junction department.

As a further preferred aspect of the present technical solution, the upper joint and the lower joint are correspondingly disposed, and the lower joint is correspondingly inserted into the upper joint in a sealing manner.

As a further preferred of this technical scheme, seal assembly includes two sets of seal ring grooves, two sets of sealing washer, and two sets of seal ring groove symmetries are seted up in top connection inner wall front end both sides, the fixed cover of sealing washer is established in the outside front end both sides of bottom connection, and the sealing washer corresponds sealed assembly in the seal ring inslot.

As a further preferred aspect of the present technical solution, the sealing ring is installed in the sealing ring groove in an expanding manner, and the sealing ring is made of a perfluororubber material.

As a further preferred of the technical solution, the sealing device further comprises a reinforcing sealing member, wherein the reinforcing sealing member is assembled at the joint of the upper joint and the lower joint in an expansion mode, and the reinforcing sealing member is positioned on one side of the sealing ring.

As a further preferred aspect of the present invention, the reinforcing seal is made of a metal steel wire, and the cross-sectional shape of the reinforcing seal is a C-shaped structure.

As a further preferred aspect of this technical scheme, the external monitoring subassembly includes a semicircle lantern ring, No. two semicircle lantern rings, two sets of extension plates, two sets of semicircle reinforcing rings, alarm and multiunit liquid monitoring head, the symmetrical laminating of semicircle reinforcing ring is installed in semicircle lantern ring both sides wall No. one, the symmetrical laminating of semicircle reinforcing ring is installed in semicircle lantern ring both sides wall No. two, No. one the extension plate symmetry is installed in semicircle lantern ring top both sides, No. two the extension plate symmetry is installed in semicircle lantern ring top both sides No. two, and a semicircle lantern ring, No. two semicircle lantern rings are circular through extension plate, No. two extension plate concatenations, a semicircle lantern ring, No. two semicircle lantern ring correspond the sealed cover and establish at top connection, lower joint junction, and a semicircle lantern ring, No. two semicircle lantern ring inner walls have all been seted up built-in chamber, liquid monitoring head evenly distributed is in built-in chamber, the alarm is installed on a semicircle lantern ring upper surface, and alarm and liquid monitoring head electric connection.

The utility model provides an anti-corrosion sealing structure suitable for a testing tool for oil testing, which has the following beneficial effects:

(1) the utility model realizes the two-time sealing at the joint of the upper joint and the lower joint by the sealing connection of the sealing rings and the sealing ring grooves by arranging the sealing component, arranging two groups of sealing ring grooves in the upper joint and arranging two groups of sealing rings on the lower joint, solving the sealing problems of high temperature resistance, high pressure resistance, corrosion resistance and the like in a fluid sealing system, solving the problem that the leakage is easy to occur in the traditional design of adopting a single sealing ring, and a reinforced sealing element is arranged at the joint of the upper joint and the lower joint, the section of the reinforced sealing element is of a C-shaped structure, so that the elastic deformation of the sealing element is reinforced, in the compression process, the reinforced sealing element and the sealing surface are tightly combined in a line sealing mode, the contact pressure between the reinforced sealing ring and the rigid body is formed under the action of the internal pressure of a medium, during use, such compressive stresses are supplemented by system pressures that lift the reinforced seal by providing additional stress loads.

(2) According to the utility model, the external monitoring assembly is arranged, and the first extension plate and the second extension plate are locked, so that the first semicircular lantern ring and the second semicircular lantern ring can be spliced into a circular shape and are sleeved at the joint of the upper joint and the lower joint, the external sealing treatment of the joint of the upper joint and the lower joint is realized, when the leakage condition occurs at the joint, the leaked liquid flows into the built-in cavity for collection, the condition that the leaked liquid leaks out in a large amount is avoided, the liquid in the built-in cavity is monitored by the liquid monitoring head, and the alarm is started for alarming after the leaked liquid occurs, so that the working personnel can be reminded in time, and the condition that a large amount of leakage occurs is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a reinforced seal according to the present invention;

FIG. 3 is a cross-sectional view of the fluid monitoring head of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of the external monitoring assembly installation of the present invention;

FIG. 5 is a schematic view of an external monitoring assembly according to the present invention;

fig. 6 is an enlarged view of the liquid monitoring head of fig. 1 according to the present invention.

In the figure: 1. an upper joint; 2. a lower joint; 3. a seal assembly; 4. an external monitoring component; 5. sealing the ring groove; 6. a seal ring; 7. a reinforcing seal; 8. a first semicircular lantern ring; 9. a second semicircular lantern ring; 10. a first extension plate; 11. a second extension plate; 12. a first semicircular reinforcing ring; 13. a second semicircular reinforcing ring; 14. an alarm; 15. a liquid monitoring head; 16. a cavity is built in.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 6, the present invention provides the technical solutions: the utility model provides an anticorrosive seal structure suitable for oil test testing tool, includes top connection 1, lower clutch 2, seal assembly 3 and outside monitoring subassembly 4, top connection 1, lower clutch 2 are connected with equipment respectively, seal assembly 3 installs at top connection 1, lower clutch 2 junction, the sealed cover of outside monitoring subassembly 4 is established at top connection 1, lower clutch 2 junction.

In this embodiment, specifically: the upper joint 1 and the lower joint 2 are correspondingly arranged, and the lower joint 2 is correspondingly sealed and inserted into the upper joint 1.

In this embodiment, specifically: the sealing component 3 comprises two groups of sealing ring grooves 5, two groups of sealing rings 6, wherein the two groups of sealing ring grooves 5 are symmetrically arranged on the front end of the inner wall of the upper joint 1, the two sides of the front end of the outer part of the lower joint 2 are respectively provided with the sealing rings 6, the sealing rings 6 are correspondingly assembled in the sealing ring grooves 5 in a sealing manner, the two groups of sealing rings 6 are arranged on the lower joint 2, the sealing connection of the sealing rings 6 and the sealing ring grooves 5 is utilized to realize the twice sealing of the joints of the upper joint 1 and the lower joint 2, and the sealing problems of high temperature resistance, high pressure resistance, corrosion resistance and the like in a fluid sealing system are solved.

In this embodiment, specifically: the sealing ring 6 is arranged in the sealing ring groove 5 in an expanding mode, and the sealing ring 6 is made of a perfluoro rubber material.

In this embodiment, specifically: the sealing device further comprises a reinforcing sealing element 7, wherein the reinforcing sealing element 7 is assembled at the joint of the upper joint 1 and the lower joint 2 in an expansion mode, and the reinforcing sealing element 7 is located on one side of the sealing ring 6.

In this embodiment, specifically: the reinforcing sealing element 7 is made of metal steel wires, and the cross section of the reinforcing sealing element 7 is of a C-shaped structure.

In this embodiment, specifically: the external monitoring component 4 comprises a first semicircular lantern ring 8, a second semicircular lantern ring 9, two groups of first extension plates 10, two groups of second extension plates 11, two groups of first semicircular reinforcing rings 12, two groups of second semicircular reinforcing rings 13, an alarm 14 and a plurality of groups of liquid monitoring heads 15, wherein the first semicircular reinforcing rings 12 are symmetrically attached to two side walls of the first semicircular lantern ring 8, the second semicircular reinforcing rings 13 are symmetrically attached to two side walls of the second semicircular lantern ring 9, the first extension plates 10 are symmetrically installed on two sides of the top of the first semicircular lantern ring 8, the second extension plates 11 are symmetrically installed on two sides of the top of the second semicircular lantern ring 9, the first semicircular lantern ring 8 and the second semicircular lantern ring 9 are spliced into a circle through the first extension plate 10 and the second extension plates 11, the first semicircular lantern ring 8 and the second semicircular lantern ring 9 are correspondingly sleeved on the joint of the upper joint 1 and the lower joint 2 in a sealing manner, and built-in chamber 16 has all been seted up to semicircle lantern ring 8, No. two semicircle lantern ring 9 inner walls, liquid monitoring head 15 evenly distributed is in built-in chamber 16, alarm 14 is installed on 8 upper surfaces of semicircle lantern ring, and alarm 14 and liquid monitoring head 15 electric connection, and after the leakage situation appears in the junction, the leakage liquid flows and collects in built-in chamber 16, avoids the situation of leaking a large amount of outer hourglass of liquid to monitor liquid in built-in chamber 16 through liquid monitoring head 15, starts alarm 14 and carries out alarm work after the leakage liquid appears, can in time remind the staff.

The working principle is that when in use, the upper joint 1 and the lower joint 2 are correspondingly clamped for preliminary sealing connection, two groups of sealing ring grooves 5 are arranged in the upper joint 1 by arranging the sealing component 3, two groups of sealing rings 6 are arranged on the lower joint 2, and the twice sealing of the joint of the upper joint 1 and the lower joint 2 is realized by utilizing the sealing connection of the sealing rings 6 and the sealing ring grooves 5, so that the sealing problems of high temperature resistance, high pressure resistance, corrosion resistance and the like in a fluid sealing system are solved, the overall sealing integrity is improved, the condition that the leakage is easily generated by the traditional design of adopting a single sealing ring 6 is solved, the reinforced sealing piece 7 is arranged at the joint of the upper joint 1 and the lower joint 2, the elastic deformation of the reinforced sealing piece 7 is enhanced due to the C-shaped cross section of the reinforced sealing piece 7, and the reinforced sealing piece 7 and a sealing face are tightly combined in a line sealing mode in the compression process, the pressure sensor is characterized in that contact pressure between a reinforced seal ring 6 and a rigid body is formed under the action of medium internal pressure, during the use period, the pressure stress can be supplemented from system pressure, the system pressure is improved by providing additional stress load to reinforce a seal member 7, the reinforced seal member 7 is made of stainless steel wires, the normal working state can be kept generally under the environments of high vacuum, high and low temperature, strong radiation and various corrosiveness, the reinforced seal member 7 has the characteristics of wide use temperature range, high pressure bearing capacity, corrosion resistance and the like, the pressure sensor has the advantages of high sealing strength, good effect, reusability and the like, and the first and

second extension plates

10 and 11 are used for locking through the arrangement of an external monitoring assembly 4, so that a first semicircular lantern ring 8 and a second semicircular lantern ring 9 can be quickly spliced to form a circular sleeve at the joint of an upper joint 1 and a lower joint 2, and the upper joint 1 and the lower joint 2 are connected to realize the connection, The outside seal of 2 junctions of lower clutch handles, the top connection 1 has further been promoted, the stability of 2 junctions of lower clutch, and at semicircle lantern ring 8 No. one, No. two semicircle lantern rings 9 have seted up built-in chamber 16, after the situation of leaking appears in the junction, the leakage liquid stream is collected in built-in chamber 16, avoid leaking the situation that the liquid leaked a large amount of outer, and monitor liquid in built-in chamber 16 through liquid monitoring head 15, start alarm 14 and carry out alarm work after the liquid that leaks appears, can in time remind the staff, the situation of a large amount of leakages avoids appearing, the stationarity of whole operation has been promoted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anticorrosive seal structure suitable for test oil testing tool, its characterized in that, includes top connection (1), lower clutch (2), seal assembly (3) and outside monitoring subassembly (4), top connection (1), lower clutch (2) are connected with equipment respectively, seal assembly (3) are installed at top connection (1), lower clutch (2) junction, top connection (1), lower clutch (2) junction are established to outside monitoring subassembly (4) sealed cover.

2. The corrosion-resistant sealing structure suitable for the oil testing tool according to claim 1, characterized in that: the upper joint (1) and the lower joint (2) are correspondingly arranged, and the lower joint (2) is correspondingly inserted into the upper joint (1) in a sealing manner.

3. The anti-corrosion sealing structure suitable for the oil testing tool according to claim 1, characterized in that: seal assembly (3) include two sets of seal ring groove (5), two sets of sealing washer (6), and upper joint (1) inner wall front end both sides are seted up to two sets of seal ring groove (5) symmetry, sealing washer (6) are fixed to be established in lower clutch (2) outside front end both sides, and sealing washer (6) correspond sealed assembly in seal ring groove (5).

4. The corrosion-resistant sealing structure suitable for the oil testing tool according to claim 3, characterized in that: the sealing ring (6) is arranged in the sealing ring groove (5) in an expanding mode, and the sealing ring (6) is made of a perfluoro rubber material.

5. The corrosion-resistant sealing structure suitable for the oil testing tool according to claim 1, characterized in that: still include and strengthen sealing member (7), strengthen sealing member (7) inflation assembly at top connection (1), lower clutch (2) junction, and strengthen sealing member (7) and be located sealing washer (6) one side.

6. The anti-corrosion sealing structure suitable for the oil testing tool according to claim 5, characterized in that: the reinforcing sealing element (7) is made of metal steel wires, and the cross section of the reinforcing sealing element (7) is of a C-shaped structure.

7. The anti-corrosion sealing structure suitable for the oil testing tool according to claim 1, characterized in that: the external monitoring assembly (4) comprises a first semicircular sleeve ring (8), a second semicircular sleeve ring (9), two groups of first extension plates (10), two groups of second extension plates (11), two groups of first reinforcing rings (12), two groups of second reinforcing rings (13), an alarm (14) and a plurality of groups of liquid monitoring heads (15), wherein the first semicircular reinforcing rings (12) are symmetrically attached to the two side walls of the first semicircular sleeve ring (8), the second semicircular reinforcing rings (13) are symmetrically attached to the two side walls of the second semicircular sleeve ring (9), the first extension plates (10) are symmetrically arranged on the two sides of the top of the first semicircular sleeve ring (8), the second extension plates (11) are symmetrically arranged on the two sides of the top of the second semicircular sleeve ring (9), and the first semicircular sleeve ring (8) and the second semicircular sleeve ring (9) are spliced into a circle through the first extension plates (10) and the second extension plates (11), semicircular ring (8), No. two semicircular ring (9) correspond the sealing sleeve and establish at top connection (1), lower clutch (2) junction, and semicircular ring (8), No. two semicircular ring (9) inner walls have all seted up built-in chamber (16), liquid monitoring head (15) evenly distributed is in built-in chamber (16), alarm (14) are installed at semicircular ring (8) upper surface, and alarm (14) and liquid monitoring head (15) electric connection.