CN217897856U - Pressure gauge support cylinder for oil field logging - Google Patents
Pressure gauge support cylinder for oil field logging Download PDFInfo
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- CN217897856U CN217897856U CN202222286781.8U CN202222286781U CN217897856U CN 217897856 U CN217897856 U CN 217897856U CN 202222286781 U CN202222286781 U CN 202222286781U CN 217897856 U CN217897856 U CN 217897856U
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- pressure gauge
- bushing pipe
- main spring
- joint
- support cylinder
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Abstract
The utility model belongs to the field of oil field downhole testing tools, in particular to a pressure gauge support cylinder for oil field well logging, which comprises an upper joint, a lower joint and a cylinder body, wherein the upper joint and the lower joint are respectively and fixedly connected with the upper end and the lower end of the cylinder body and encapsulate the pressure gauge in the cylinder body, and a main spring playing a role of buffering is respectively arranged between the pressure gauge and the upper joint as well as between the pressure gauge and the lower joint; the outside of pressure gauge is provided with the bushing pipe, and pressure gauge fixed mounting is in the bushing pipe, two main spring set up respectively between bushing pipe and top connection and bushing pipe and lower clutch. The utility model discloses a with pressure gauge fixed mounting in the bushing pipe of suspension, avoided the wearing and tearing of pressure gauge. The utility model discloses a set up main spring, secondary spring, go up slide bar and slide bar isotructure down, can provide the buffering of violently indulging two directions for pressure gauge and bushing pipe to for the pressure gauge provides all-round protection, further prevent that the pressure gauge from damaging.
Description
Technical Field
The utility model belongs to the oil field testing tool field in the pit especially relates to a pressure gauge support cylinder for oil field well logging.
Background
In the oil field production process, the pressure gauge is often required to be used for measuring the underground pressure, however, the pressure gauge used in the underground test belongs to a high-precision instrument, and if protective measures are not taken, the pressure gauge is extremely easy to vibrate and damage in the underground process. In production practice, in order to protect the pressure gauge, the pressure gauge must be housed in a specially made protective device. Among the current protection device, pressure gauge and slidable mounting are provided with the spring in protection device's barrel, the upper and lower both ends of pressure gauge to the impact of buffering in-process of going into the well plays the effect of protection pressure gauge. However, such protection devices have some drawbacks: firstly, in the using process, the pressure gauge and a cylinder body of the protection device rub against each other, so that the surface of the pressure gauge is abraded; second, the prior art protective devices provide only longitudinal cushioning and no lateral cushioning, which can still cause damage to the gauge in complex and special well conditions.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pressure gauge support cylinder for oil field well logging, the purpose is through carrying out more comprehensive protection to the pressure gauge, prevents more reliably that the pressure gauge from damaging because of vibration in the pit to prevent pressure gauge wearing and tearing.
The utility model provides a technical problem adopt following technical scheme to realize:
a pressure gauge support cylinder for oil field well logging comprises an upper joint, a lower joint and a cylinder body, wherein the upper joint and the lower joint are respectively and fixedly connected to the upper end and the lower end of the cylinder body and encapsulate a pressure gauge in the cylinder body;
the outside of pressure gauge is provided with the bushing pipe, and pressure gauge fixed mounting is in the bushing pipe, two main spring set up respectively between bushing pipe and top connection and bushing pipe and lower clutch.
As a preferred scheme, an annular groove is processed on the outer side of the liner tube, a rubber ring is installed in the annular groove, and the cylindrical surface on the outer side of the rubber ring is in sliding fit with the inner wall of the cylinder body.
As a preferred scheme, mounting holes for mounting the main spring are processed on the upper joint and the lower joint and are respectively called as an upper mounting hole and a lower mounting hole, an upper sliding rod is slidably mounted in the upper mounting hole, and a lower sliding rod is slidably mounted in the lower mounting hole;
the upper end and the lower end of a main spring in the upper joint are respectively fixedly connected with the upper joint and the upper sliding rod, and the upper end and the lower end of the main spring in the lower joint are respectively fixedly connected with the lower sliding rod and the lower joint;
the upper end and the lower end of the liner tube are respectively provided with an auxiliary spring, and the liner tube is connected with the upper sliding rod and the lower sliding rod through the auxiliary springs.
Preferably, after the pressure gauge support cylinder for oil field logging is assembled, the main spring and the auxiliary spring are both in a pre-tensioned state.
Preferably, the number of the auxiliary springs at the upper end and the lower end of the liner tube is two, and the included angle between the center lines of the two auxiliary springs at the same end of the liner tube is 60 degrees.
Preferably, the upper end and the lower end of the pressure gauge are provided with cushions.
The beneficial effects of the utility model are that:
1. the utility model discloses a with pressure gauge fixed mounting in the bushing pipe of suspension, avoided the friction between each part in pressure gauge and the protection device to the wearing and tearing of pressure gauge have been avoided.
2. The utility model discloses a set up main spring, secondary spring, go up slide bar and slide bar isotructure down, can provide the buffering of violently indulging two directions for pressure gauge and bushing pipe to for the pressure gauge provides all-round protection, further prevent that the pressure gauge from damaging.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: 1. an upper joint; 2. a barrel; 3. a liner tube; 4. a pressure gauge; 5. a lower joint; 6. a main spring; 7. a soft cushion; 8. a rubber ring; 9. a balance hole; 10. a sliding rod is arranged; 11. a secondary spring; 12. and a lower sliding rod.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, this embodiment includes top connection 1, lower clutch 5 and barrel 2, and top connection 1 and lower clutch 5 are fixed connection respectively at the upper and lower both ends of barrel 2 and encapsulate pressure gauge 4 in barrel 2, respectively are provided with a main spring 6 between pressure gauge 4 and top connection 1 and the lower clutch 5, and two main springs 6 cushion pressure gauge 4 from upper and lower both sides, prevent that pressure gauge 4 from damaging when bearing the axial shock. The above is a conventional structure in the prior art, and is not described in detail here.
As shown in fig. 1, the innovation of the present embodiment is:
the outside of pressure gauge 4 is provided with bushing pipe 3, and the effect of bushing pipe 3 is protection pressure gauge 4, prevents pressure gauge 4 wearing and tearing, and pressure gauge 4 fixed mounting is in bushing pipe 3, two main spring 6 set up respectively between bushing pipe 3 and top connection 1 and bushing pipe 3 and lower clutch 5. When running downhole, the pressure gauge 4 and the liner 3 mounted on its outside do not move relative to each other and therefore do not wear out. In specific implementation, liner 3 can be divided into two parts which can be quickly disassembled and assembled, so that pressure gauge 4 can be quickly installed in liner 3 before testing, and pressure gauge 4 can be quickly installed and removed from liner 3 after testing to conduct data export.
As shown in figure 1, in order to avoid the damage of the pressure gauge 4 under complicated special well conditions, an annular groove is processed on the outer side of the liner tube 3, a rubber ring 8 is installed in the annular groove, and the cylindrical surface on the outer side of the rubber ring 8 is in sliding fit with the inner wall of the cylinder 2. The arrangement of the rubber ring 8 can provide buffer for the radial movement of the pressure gauge 4 and the liner tube 3, thereby protecting the pressure gauge 4 in all directions and ensuring that a protection device of the pressure gauge 4 can play a role in protection more reliably.
It should be noted that in order to allow the downhole pressure to reach the pressure gauge 4, it is necessary to provide balance holes 9 for conducting the pressure on the liner 3 and the cylinder 2, which is conventional and will not be described in detail herein.
Example two
The difference between this embodiment and the first embodiment is:
as shown in fig. 2, mounting holes for mounting the main spring 6 are processed on the upper joint 1 and the lower joint 5, which are respectively called an upper mounting hole and a lower mounting hole, an upper slide bar 10 is slidably mounted in the upper mounting hole, and a lower slide bar 12 is slidably mounted in the lower mounting hole; the upper end and the lower end of a main spring 6 in the upper joint 1 are respectively fixedly connected with the upper joint 1 and the upper sliding rod 10, and the upper end and the lower end of the main spring 6 in the lower joint 5 are respectively fixedly connected with the lower sliding rod 12 and the lower joint 5; the upper end and the lower end of the liner tube 3 are respectively provided with an auxiliary spring 11, and the liner tube 3 is connected with an upper slide bar 10 and a lower slide bar 12 through the auxiliary springs 11.
In the structure, the two main springs 6 still play a role in axial buffering, and the upper and lower pairs of auxiliary springs 11 mainly play a role in radial buffering and can also provide part of axial buffering. The upper slide bar 10 and the lower slide bar 12 are used for limiting the transverse swing of the main spring 6, and no matter how long the main spring 6 is selected, the radial movement amplitude of the liner tube 3 is only related to the rigidity and the elastic modulus of the secondary spring 11 and is not related to the main spring 6, so that the radial movement amplitude of the liner tube 3 is limited, and the liner tube 3 is prevented from colliding with the cylinder 2.
As shown in fig. 2, after the pressure gauge 4 cartridge for oilfield logging is assembled, the main spring 6 and the auxiliary spring 11 are both in a pre-stretched state, and although the pre-stretched state may increase the assembly difficulty, the support strength of the springs on the liner tube 3 may be enhanced, which is beneficial to further exerting the damping effect of each spring.
As shown in fig. 2, the number of the secondary springs 11 at the upper end and the lower end of the liner tube 3 is two, and an included angle between center lines of the two secondary springs 11 at the same end of the liner tube 3 is 60 degrees. By limiting the number and the arrangement direction of the secondary springs 11, the variation curve of the force applied to the liner tube 3 by the secondary springs 11 in the radial movement process of the liner tube 3 can be changed, and the radial shock absorption performance of the pressure gauge 4 is favorably improved.
As shown in fig. 1 or fig. 2, in specific implementation, cushions 7 may be disposed at upper and lower ends of the pressure gauge 4, which is beneficial to preventing collision of the pressure gauge 4 during assembly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pressure gauge support cylinder for oil field well logging, includes top connection (1), lower clutch (5) and barrel (2), top connection (1) and lower clutch (5) respectively fixed connection at the upper and lower both ends of barrel (2) and encapsulate pressure gauge (4) in barrel (2), respectively are provided with a main spring (6) that play cushioning effect between pressure gauge (4) and top connection (1) and lower clutch (5), its characterized in that:
the outside of pressure gauge (4) is provided with bushing pipe (3), and pressure gauge (4) fixed mounting is in bushing pipe (3), two main spring (6) set up respectively between bushing pipe (3) and top connection (1) and bushing pipe (3) and lower clutch (5).
2. The pressure gauge support cylinder for oilfield logging according to claim 1, wherein: an annular groove is processed on the outer side of the liner tube (3), a rubber ring (8) is installed in the annular groove, and the cylindrical surface on the outer side of the rubber ring (8) is in sliding fit with the inner wall of the cylinder body (2).
3. The pressure gauge support cylinder for oilfield logging according to claim 1, wherein: mounting holes for mounting the main spring (6) are formed in the upper connector (1) and the lower connector (5) and are respectively called an upper mounting hole and a lower mounting hole, an upper sliding rod (10) is slidably mounted in the upper mounting hole, and a lower sliding rod (12) is slidably mounted in the lower mounting hole;
the upper end and the lower end of a main spring (6) in the upper joint (1) are respectively and fixedly connected with the upper joint (1) and the upper sliding rod (10), and the upper end and the lower end of the main spring (6) in the lower joint (5) are respectively and fixedly connected with the lower sliding rod (12) and the lower joint (5);
and the upper end and the lower end of the liner tube (3) are respectively provided with an auxiliary spring (11), and the liner tube (3) is connected with the upper sliding rod (10) and the lower sliding rod (12) through the auxiliary springs (11).
4. The pressure gauge holder for oilfield logging according to claim 3, wherein: after the pressure gauge support cylinder for oil field well logging is assembled, the main spring (6) and the auxiliary spring (11) are both in a pre-stretching state.
5. The pressure gauge support cylinder for oilfield logging according to claim 3, wherein: the number of the auxiliary springs (11) at the upper end and the lower end of the liner tube (3) is two, and the included angle of the central lines of the two auxiliary springs (11) at the same end of the liner tube (3) is 60 degrees.
6. A pressure gauge holder for oilfield logging according to any one of claims 1-5, wherein: and the upper end and the lower end of the pressure gauge (4) are provided with cushions (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286781.8U CN217897856U (en) | 2022-08-30 | 2022-08-30 | Pressure gauge support cylinder for oil field logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286781.8U CN217897856U (en) | 2022-08-30 | 2022-08-30 | Pressure gauge support cylinder for oil field logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217897856U true CN217897856U (en) | 2022-11-25 |
Family
ID=84107638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222286781.8U Active CN217897856U (en) | 2022-08-30 | 2022-08-30 | Pressure gauge support cylinder for oil field logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217897856U (en) |
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2022
- 2022-08-30 CN CN202222286781.8U patent/CN217897856U/en active Active
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