CN220226848U - Go well gauge - Google Patents
Go well gauge Download PDFInfo
- Publication number
- CN220226848U CN220226848U CN202321644430.8U CN202321644430U CN220226848U CN 220226848 U CN220226848 U CN 220226848U CN 202321644430 U CN202321644430 U CN 202321644430U CN 220226848 U CN220226848 U CN 220226848U
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- CN
- China
- Prior art keywords
- diameter gauge
- mandrel
- sleeve
- diameter
- gauge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010008 shearing Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a drift size gauge, and belongs to the technical field of underground special tools. The utility model comprises a mandrel, a diameter gauge sleeve, diameter gauge blocks and shearing pins, wherein the outer peripheral surface of the mandrel is provided with a conical assembly surface, the diameter gauge sleeve is sleeved on the region where the conical assembly surface of the mandrel is located, the diameter gauge sleeve is provided with conical inner holes which are matched with the conical assembly surface of the mandrel, a plurality of radial through holes are arranged at intervals along the circumferential direction of the conical inner holes of the diameter gauge sleeve, the diameter gauge blocks are correspondingly arranged in each radial through hole, the inner ends of the diameter gauge blocks are provided with limiting protrusions which prevent the diameter gauge blocks from separating from the radial through holes, and when the diameter gauge sleeve and the diameter gauge blocks are arranged at set positions on the mandrel, the diameter gauge sleeve is fixedly connected with the mandrel through the shearing pins; when the shear pin breaks and fails, the diameter gauge sleeve and the diameter gauge block can move towards the small end of the conical assembly surface. In the well-dredging process, if the well-dredging gauge is blocked, the shearing pin is broken and invalid by lifting the well-dredging gauge, and blocking can be released.
Description
Technical Field
The utility model relates to a drift size gauge, and belongs to the technical field of underground special tools.
Background
The petroleum gauge block is one of the auxiliary tools necessary for drilling, completing, testing and downhole operations, and is mainly used for ensuring the trafficability of tools in a casing pipe on a certain length and diameter.
A typical conventional gauge block structure is shown in fig. 1, and the conventional gauge block is generally composed of a plurality of cylinders with fixed diameters and certain intervals, and if a blocking clamp such as casing deformation, deposited sundries and the like is encountered in the well-dredging process, the risk of being blocked is caused, so that a well-dredging pipe column cannot be lifted out; once stuck, post-processing is not predictable, both in cost and in duration.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the utility model provides a drift size gauge can remove the card more conveniently when its card dies.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the diameter gauge comprises a mandrel, a diameter gauge sleeve, a diameter gauge block and a shearing pin, wherein the outer peripheral surface of the mandrel is provided with a conical assembly surface, the diameter gauge sleeve is sleeved in the region where the conical assembly surface of the mandrel is located, the diameter gauge sleeve is provided with a conical inner hole matched with the conical assembly surface of the mandrel, a plurality of radial through holes are arranged in the diameter gauge sleeve at intervals along the circumferential direction of the conical inner hole of the diameter gauge sleeve, the diameter gauge block is correspondingly installed in each radial through hole, the inner end of the diameter gauge block is provided with a limiting bulge preventing the diameter gauge block from separating from the radial through hole, the inner end of the diameter gauge sleeve is provided with a containing cavity matched with the limiting bulge, when the diameter gauge sleeve and the diameter gauge block are installed at a set position on the mandrel, the diameter gauge sleeve is fixedly connected with the mandrel through the shearing pin, the outer end surface of the diameter gauge block is positioned on the same cylindrical surface taking the axis of the mandrel as the central axis, and the conical inner end surfaces of the diameter gauge sleeve and the diameter gauge block are contacted with the conical assembly surface of the mandrel; when the shear pin breaks and fails, the diameter gauge sleeve and the diameter gauge block can move towards the small end of the conical assembly surface.
As a further preferable embodiment of the present utility model: the diameter gauge blocks are arranged in a plurality of groups at intervals along the axial direction of the mandrel, and the diameter gauge blocks in each group are uniformly arranged in a plurality of groups at intervals along the circumferential direction of the diameter gauge sleeve; two adjacent groups of diameter gauge blocks are arranged in a staggered way.
As a further preferable embodiment of the present utility model: the shearing pins are uniformly distributed at intervals along the circumference of the diameter sleeve.
As a further preferable embodiment of the present utility model: the mandrel is of a hollow structure; the end part of the mandrel, at the large end of the conical assembly surface, is provided with an internal threaded hole for connecting a drift tube column.
As a further preferable embodiment of the present utility model: the mandrel is provided with an external thread structure at the end of the conical assembly surface where the small end is located.
As a further preferable embodiment of the present utility model: the outer end face of the diameter gauge block is provided with guide inclined planes at the end positions corresponding to the two axial ends of the mandrel.
The beneficial effects of the utility model are as follows: when entering the well, the diameter gauge sleeve and the diameter gauge block are arranged at the set position on the mandrel, the diameter gauge sleeve is fixedly connected with the mandrel through the shearing pin, the outer end face of the diameter gauge block is positioned on the same cylindrical surface taking the axis of the mandrel as the central axis, the conical inner hole of the diameter gauge sleeve and the inner end face of the diameter gauge block are both contacted with the conical assembly surface of the mandrel, and the diameter gauge block is supported and positioned by the conical assembly surface, so that the conventional function of the drift diameter gauge is realized. When entering the well, the small head end of the conical assembly surface of the mandrel faces to the bottom of the well, if a blocking device such as a casing is deformed and deposited sundries is encountered in the well-dredging process, when the well-dredging gauge is blocked, the blocked diameter gauge block transmits the lifting force to a shearing pin with a designed shearing value through the diameter gauge sleeve by lifting the well-dredging gauge block upwards, the shearing pin is broken, and the diameter gauge block and the diameter gauge sleeve can simultaneously move downwards, so that the supported diameter gauge block falls into the smaller diameter of the mandrel from the larger diameter of the mandrel, and the blocking device is released. The utility model can conveniently remove the blocking when the device is blocked. And the diameter gauge block is a detachable mounting structure, and the diameter gauge block with different specifications can be changed within a certain range to be suitable for different casing inner diameters.
Drawings
FIG. 1 is a front view of a prior art semi-cut structure;
FIG. 2 is a schematic perspective view of the present utility model;
FIG. 3 is a front view of a semi-sectional structure of the present utility model;
FIG. 4 is a cross-sectional view of section A-A of FIG. 3;
fig. 5 is a sectional view of fig. 3 at B-B.
Part numbers in the figures: the device comprises a mandrel 1, a diameter gauge sleeve 2, a diameter gauge block 3, a shearing pin 4, an internal threaded hole 11, a limiting protrusion 31 and a guide inclined plane 32.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and examples.
As shown in fig. 2 to 5, the utility model comprises a mandrel 1, a diameter gauge sleeve 2, a diameter gauge block 3 and a shearing pin 4, wherein the outer peripheral surface of the mandrel 1 is provided with a conical assembling surface, the diameter gauge sleeve 2 is sleeved on the region where the conical assembling surface of the mandrel 1 is located, the diameter gauge sleeve 2 is provided with a conical inner hole matched with the conical assembling surface of the mandrel 1, a plurality of radial through holes are circumferentially arranged at intervals along the conical inner hole of the diameter gauge sleeve 2, the diameter gauge block 3 is correspondingly arranged in each radial through hole, the inner end of the diameter gauge block 3 is provided with a limiting protrusion 31 for preventing the diameter gauge block 3 from separating from the radial through hole, the diameter gauge sleeve 2 is provided with a containing cavity matched with the limiting protrusion 31 at the inner end of the radial through hole, when the diameter gauge sleeve 2 and the diameter gauge block 3 are arranged at a set position on the mandrel 1, the diameter gauge sleeve 2 is fixedly connected with the mandrel 1 through the shearing pin 4, at the moment, the outer end surface of the diameter gauge block 3 is positioned on the same cylindrical surface taking the axis of the mandrel 1 as the central axis, the conical assembling surface of the diameter gauge block 3 is contacted with the conical assembling surface of the mandrel 1 (the inner end surface of the diameter gauge block 3 is preferably matched with the conical arc-shaped surface); when the shear pin 4 breaks and fails, the diameter gauge sleeve 2 and the diameter gauge block 3 can move towards the small end of the conical assembly surface.
It will be appreciated that the conical mounting surface has a larger diameter at one end than at the other end, with the larger diameter end being the large head end and the smaller diameter end being the small head end. The "setting position of the diameter gauge sleeve 2 and the diameter gauge block 3 on the mandrel 1" means that the conical inner hole of the diameter gauge sleeve 2 and the inner end surface of the diameter gauge block 3 are both contacted with the conical assembly surface of the mandrel 1, the diameter gauge sleeve 2 and the diameter gauge block 3 are supported and positioned by the conical assembly surface of the mandrel 1, and at the moment, the outer end surface of the diameter gauge block 3 is positioned on the same cylindrical surface taking the axis of the mandrel 1 as the central axis, so that the conventional drift diameter gauge function is realized. When entering the well, the small end of the conical assembly surface of the mandrel 1 faces to the bottom of the well, if a blocking device such as a casing is deformed and deposited sundries is encountered in the well-dredging process, when the well-dredging gauge is blocked, the blocked diameter gauge block 3 transfers the lifting force to the shearing pin 4 with a designed shearing value through the diameter gauge sleeve 2 by lifting the well-dredging gauge block upwards, the shearing pin 4 breaks, the diameter gauge block 3 and the diameter gauge sleeve 2 can move downwards at the same time, so that the supported diameter gauge block 3 falls into the smaller diameter of the mandrel 1 from the larger diameter position on the mandrel 1, the diameter gauge block 3 loses support, and the blocking is released.
One or more groups of diameter gauge blocks 3 can be designed, and in order to achieve a better well dredging effect, the preferable scheme is that the diameter gauge blocks 3 are arranged at intervals along the axial direction of the mandrel 1, and the diameter gauge blocks 3 of each group are uniformly arranged at intervals along the circumferential direction of the diameter gauge sleeve 2; the two adjacent groups of diameter gauge blocks 3 are arranged in a staggered way, namely, the radial section of the mandrel 1 is used as a projection reference plane, and projections formed by the two adjacent groups of diameter gauge blocks 3 are not in a superposition alignment state, but are in a staggered arrangement. The embodiment shown in the figure is designed with two sets of diameter gauge blocks 3, four in each set, evenly spaced.
To make the structure more reliable, the shear pins 4 are uniformly spaced apart in the circumferential direction of the diameter sleeve 2.
In order to be used with the existing drift tube column, the mandrel 1 is of a hollow structure, and an internal threaded hole 11 for connecting the drift tube column is formed in the end portion of the large end portion of the conical assembly surface of the mandrel 1. To facilitate connection with other tools in the tubular string, the mandrel 1 is provided with an external thread formation at the end of the conical fitting surface where the small end is located. It is to be understood that in the alternative, it is also possible to design the fixed rod body or the fixed tube body directly on the mandrel as an operating rod.
Preferably, the outer end surface of the gauge block 3 is provided with guiding inclined surfaces 32 at end positions corresponding to the two axial ends of the mandrel 1, so that the gauge can be conveniently introduced or led out.
Claims (6)
1. Go well gauge, its characterized in that: the automatic cutting device comprises a mandrel (1), a diameter gauge sleeve (2), diameter gauge blocks (3) and a shearing pin (4), wherein the outer peripheral surface of the mandrel (1) is provided with a conical assembly surface, the diameter gauge sleeve (2) is sleeved in an area where the conical assembly surface of the mandrel (1) is located, the diameter gauge sleeve (2) is provided with a conical inner hole matched with the conical assembly surface of the mandrel (1), a plurality of radial through holes are arranged at intervals along the circumferential direction of the conical inner hole of the diameter gauge sleeve (2), the diameter gauge blocks (3) are correspondingly arranged in each radial through hole, the inner ends of the diameter gauge blocks (3) are provided with limit protrusions (31) for preventing the diameter gauge blocks from separating from the radial through holes, the inner ends of the diameter gauge sleeve (2) are provided with accommodating cavities matched with the limit protrusions (31), and when the diameter gauge sleeve (2) and the diameter gauge blocks (3) are arranged at set positions on the mandrel (1), the diameter gauge sleeve (2) and the mandrel (1) are fixedly connected through the shearing pin (4), and the outer end surfaces of the diameter gauge blocks (3) are positioned on the same cylindrical surface which takes the axis of the mandrel (1) as the central shaft, and the inner end surfaces of the diameter gauge blocks (2) are in contact with the conical inner hole surfaces (1); when the shear pin (4) breaks and fails, the diameter gauge sleeve (2) and the diameter gauge block (3) can move towards the small end of the conical assembly surface.
2. A gauge as defined in claim 1, wherein: the diameter gauge blocks (3) are arranged in a plurality of groups at intervals along the axial direction of the mandrel (1), and the diameter gauge blocks (3) of each group are uniformly arranged in a plurality of groups at intervals along the circumferential direction of the diameter gauge sleeve (2); two adjacent groups of diameter gauge blocks (3) are arranged in a staggered way.
3. A gauge as defined in claim 1, wherein: the shearing pins (4) are uniformly distributed at intervals along the circumference of the diameter gauge sleeve (2).
4. A gauge tool according to any one of claims 1 to 3, wherein: the mandrel (1) is of a hollow structure; the mandrel (1) is provided with an internal threaded hole (11) for connecting a drift tube column at the end part of the conical assembly surface where the big end part is located.
5. A gauge as defined in claim 4, wherein: the mandrel (1) is provided with an external thread structure at the end part of the conical assembly surface where the small end part is located.
6. A gauge tool according to any one of claims 1 to 3, wherein: the outer end surfaces of the diameter gauge blocks (3) are provided with guide inclined planes (32) at the end positions corresponding to the two axial ends of the mandrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644430.8U CN220226848U (en) | 2023-06-27 | 2023-06-27 | Go well gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321644430.8U CN220226848U (en) | 2023-06-27 | 2023-06-27 | Go well gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220226848U true CN220226848U (en) | 2023-12-22 |
Family
ID=89187666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321644430.8U Active CN220226848U (en) | 2023-06-27 | 2023-06-27 | Go well gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220226848U (en) |
-
2023
- 2023-06-27 CN CN202321644430.8U patent/CN220226848U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |