CN208473842U - Oil field casing leak-checking combination tool - Google Patents
Oil field casing leak-checking combination tool Download PDFInfo
- Publication number
- CN208473842U CN208473842U CN201820958735.9U CN201820958735U CN208473842U CN 208473842 U CN208473842 U CN 208473842U CN 201820958735 U CN201820958735 U CN 201820958735U CN 208473842 U CN208473842 U CN 208473842U
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- China
- Prior art keywords
- annular
- sleeve
- oil field
- tube
- fixed seat
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- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 26
- 238000009738 saturating Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a combined tool for leakage detection of an oil field casing, which comprises a central tube with one closed end, wherein the tube wall of the central tube positioned at the middle position in the length direction is provided with a first through hole; the pipe walls adjacent to the two ends of the central pipe are respectively fixedly sleeved with a first annular fixed seat, and a second annular fixed seat is fixedly sleeved between each first annular fixed seat and the first through hole; a rubber cylinder is arranged between the adjacent first annular fixed seat and the second annular fixed seat in a sealing manner, and an annular closed space is formed among the adjacent first annular fixed seat, the second annular fixed seat, the outer wall of the central pipe and the inner wall of the rubber cylinder; each first annular fixing seat is provided with a liquid through hole which is communicated with the corresponding annular closed space. The utility model discloses a cooperation of two rubber cylinders, what can make things convenient for in a flexible way is looked for the sleeve pipe and is leaked, reduces and looks for the hourglass cost, on guaranteeing to look for the basis of leaking the success rate, operates more nimble portably, has alleviateed the extrusion to tubular product, has effectively protected the oil field sleeve pipe.
Description
Technical field
The utility model is that leakage combination work is tested about a kind of oil-gas pipeline leak testing device more particularly to a kind of sleeve in oil field
Tool.
Background technique
With deepening continuously for oil field development, casing damage situation becomes increasingly conspicuous.Before general scene important procedure, all
It needs to carry out casing to test leakage.Existing sleeve in oil field tests the tool for leaking and using as packer, sets reconciliation by packer
Envelope realizes that casing looks for leakage operation.Packer looks for leakage operation technique relative maturity, looks for the success rate of leakage also relatively high.But pass through envelope
Leakage is looked for every device, it is at high cost, it is complicated for operation, it looks for leakage rear sleeve to be easy to appear extrusion deformation, damages tubing, cause to waste.
The present inventor based on years of experience and practice in relevant industries, proposes that a kind of sleeve in oil field tests leakage group as a result,
Conjunction tool, to overcome the deficiencies of existing technologies.
Utility model content
The purpose of this utility model is to provide a kind of sleeve in oil field to test leakage combination tool, is guaranteeing to look for the base for leaking success rate
On plinth, more flexible simplicity is operated, mitigates the extruding to tubing, effective protection casing.
The purpose of this utility model is achieved in that a kind of sleeve in oil field tests leakage combination tool, including closed at one end
Central tube, the tube wall that the central tube is located at length direction middle position are equipped with the first open-work；Neighbouring central tube end positions
Tube wall on respectively fixing sleeve be equipped with first annular fixing seat, between each first annular fixing seat and the first open-work again fix respectively
It is arranged with the second annular fixed seat；Two first annular fixing seats and two second annular fixed seats are respectively symmetrically
Positioned at the two sides of the first open-work；Sealing shroud is equipped with a rubber between adjacent first annular fixing seat and the second annular fixed seat
Cylinder constitutes annular between the adjacent first annular fixing seat, the second annular fixed seat, center pipe outer wall and rubber tube inner wall
Confined space；Each first annular fixing seat is equipped with the liquid-passing hole road of conducting respective annular confined space.
In a better embodiment of the utility model, each first annular fixing seat and/or each second ring
Traveling wheel is provided in shape fixing seat.
In a better embodiment of the utility model, the traveling wheel is magnet pulley.
In a better embodiment of the utility model, the central tube inner sleeve is equipped with support tube, the support tube
It is equipped with the second open-work of conducting corresponding with the first open-work.
In a better embodiment of the utility model, link block is provided between the central tube and support tube.
It is in be bonded to be arranged in a better embodiment of the utility model, between the central tube and support tube.
In a better embodiment of the utility model, the other end of the central tube is equipped with ring flange.
In a better embodiment of the utility model, between described central tube one end and the first open-work, and neighbouring the
A baffle is equipped in the pipeline of one open-work position.
In a better embodiment of the utility model, a fluid-through tube road is connected on each liquid-passing hole road.
From the above mentioned, the sleeve in oil field of the utility model tests leakage combination tool, passes through the cooperation of two rubber tubes, Neng Goufang
Just flexibly casing is carried out looking for leakage, leakage cost is looked in reduction, on the basis of guaranteeing to look for leakage success rate, operates more flexible letter
Just, the extruding to tubing is alleviated, effective protection sleeve in oil field.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1: the structural schematic diagram of leakage combination tool is tested for the utility model sleeve in oil field.
Drawing reference numeral:
100, sleeve in oil field tests leakage combination tool；
1, central tube；
11, the first open-work；
2, first annular fixing seat；
21, liquid-passing hole road；
22, fluid-through tube road；
3, the second annular fixed seat；
4, rubber tube；
5, annular sealed space；
6, traveling wheel；
7, support tube；
71, the second open-work；
72, link block；
8, ring flange；
9, baffle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In addition to non-individual defines the direction pointed out, the left and right equal directions being referred to herein are with the utility model
Shown in subject to left and right equal directions in Fig. 1, illustrate in this together.
As shown in Figure 1, the utility model proposes a kind of sleeve in oil field to test leakage combination tool 100, in closed at one end
Heart pipe 1, the tube wall that the central tube 1 is located at length direction middle position are equipped with the first open-work 11；Neighbouring 1 both ends of central tube position
Fixed respectively on the tube wall set be arranged (such as: welding) has a first annular fixing seat 2, and each first annular fixing seat 2 and first is saturating
Fixing sleeve is equipped with the second annular fixed seat 3 respectively again between hole 11；Two first annular fixing seats 2 and two described second
Annular fixed seat 3 respectively symmetrically is located at the two sides of the first open-work 11, it may be assumed that two first annular fixing seats 2 and two institutes
The second annular fixed seat 3 is stated to be symmetrical set using the cross section in the middle position of the length direction of central tube 1 as the plane of symmetry；Phase
Sealing shroud is equipped with a rubber tube 4 between adjacent first annular fixing seat 2 and the second annular fixed seat 3, it may be assumed that 11 left side of the first open-work
First annular fixing seat 2 and the second annular fixed seat 3 between sealing shroud be equipped with a rubber tube 4, the of the right side of the first open-work 11
Sealing shroud is equipped with another rubber tube 4 between one annular fixed seat 2 and the second annular fixed seat 3；The rubber tube is greater than by diameter
The high-pressure hose of center pipe diameter is constituted, and the high-pressure hose is identical as the rubber tube material that water injection hole packer uses, it is ensured that is used
Quality；Structure between the adjacent first annular fixing seat 2,4 inner wall of the second annular fixed seat 3,1 outer wall of central tube and rubber tube
Circularize confined space 5；Each first annular fixing seat 2 is equipped with the liquid-passing hole road 21 of conducting respective annular confined space 5.
When in use, sleeve in oil field is tested leakage combination tool 100 to be placed in the sleeve in oil field of leakage to be tested, two the first rings
Liquid-passing hole road 21 in shape fixing seat 2 connects hydraulic system (not shown), injects respectively into two annular sealed spaces 5
Liquid, liquid jacks up two rubber tubes 4 respectively and fits closely with sleeve in oil field inner wall, then (i.e. attached from the central tube other end
Left side in Fig. 1) nozzle injected clear water, clear water enters empty by the sealing formed between two rubber tubes and sleeve in oil field inner wall
Intracavitary, in the presence of hydraulic pressure, the leakage scenarios by observing sleeve in oil field outer wall clear water examine sleeve in oil field.It is inspected
Afterwards, liquid is released from two annular sealed spaces 5, clear water is released out of central tube 1, then central tube 1 is moved to next
Position repeats above-mentioned movement and looks for leakage to the remaining tube wall of oil field pipe.It is above-mentioned test leakage operation can be in the sleeve in oil field of leakage to be tested
It carries out, can also be carried out in the case where not removing sleeve in oil field in the case where being removed from well.
From the above mentioned, the sleeve in oil field of the utility model tests leakage combination tool, passes through the cooperation of two rubber tubes, Neng Goufang
Just flexibly casing is carried out looking for leakage, leakage cost is looked in reduction, on the basis of guaranteeing to look for leakage success rate, operates more flexible letter
Just, the extruding to tubing is alleviated, effective protection sleeve in oil field.
Above-mentioned two first annular fixing seat 2 and two second annular fixed seats 3 respectively symmetrically are located at the
The two sides of one open-work 11 can make two 4 uniform forces of rubber tube, seal up sleeve in oil field inner wall.
First annular fixing seat 2 and the shape of the second annular fixed seat 3 can be adapted with sleeve in oil field inner wall, with convenient
Central tube is mobile.
Further, in the present embodiment, each first annular fixing seat 2 and/or each second annular fixed seat 3
On be provided with traveling wheel 6, the traveling wheel 6 is magnet pulley, so that traveling wheel 6 is fitted closely sleeve in oil field inner wall, improves
Sleeve in oil field tests the stability that leakage combination tool is run in sleeve in oil field；Sleeve in oil field is facilitated to test leakage combination tool as a result,
Mobile, leakage efficiency is looked in raising, can be further reduced the extruding force to casing, while traveling wheel being avoided to be infiltrated by liquid, is effectively protected
Protect traveling wheel.
As shown in Figure 1, in the present embodiment, in order to enhance the hydraulic bearing ability of central tube, keeping central tube more steady
It reinforces and leans on, 1 inner sleeve of central tube is equipped with support tube 7, and the support tube 7 is metal tube, and the support tube 7 is equipped with and the
Second open-work 71 of the corresponding conducting of one open-work 11.
The set-up mode of support tube 7 can be that there are gap, the central tube 1 and branch between support tube 7 and central tube 1
Multiple link blocks 72 are provided between stay tube 7；Each link block 72 is welded and fixed with central tube 1 and support tube 7 respectively；
The set-up mode of support tube 7 can also be, be arranged between central tube 1 and support tube 7 in being bonded, the two is stationary fit
Connection.
Further, sealing shroud can equipped with a rubber tube 4 between the first annular fixing seat 2 and the second annular fixed seat 3
To be realized there are many in a manner of, such as: screw connection, or clamping, splicing, clip etc. can be with, in actual use cooperation oil sealing,
The components such as gasket play sealing function.
As shown in Figure 1, in the present embodiment, the other end of the central tube 1 is equipped with ring flange 8, ring flange 8 is existing
Ring flange is threadedly coupled with central tube 1, and centre is equipped with through-hole, enters clear water in central tube 1.
Between described 1 one end of central tube and the first open-work 11, and a gear is equipped in the pipeline of neighbouring first open-work, 11 position
Plate 9；Baffle cross section is circle, and baffle can block the clear water in left side, be that clear water is flowed out from the first open-work 11, enter by two
In the sealing cavity formed between a rubber tube 4 and sleeve in oil field inner wall, in the presence of hydraulic pressure, to pass through observation oil field set
The leakage scenarios of pipe outer wall clear water examine sleeve in oil field.
As shown in Figure 1, in the present embodiment, a fluid-through tube road 22 is threadedly coupled on each 21 outer end of liquid-passing hole road, it is hydraulic
System can be tightly connected by the fluid-through tube road 22 with liquid-passing hole road 21.
Compared with prior art, the utility model sleeve in oil field, which tests the beneficial effect of leakage combination tool, is:
1. passing through the cooperation of two rubber tubes, convenient, flexible casing can be carried out looking for leakage, leakage cost is looked in reduction, is mitigated
It looks for leakage to the extruding force of tubing, reduces the damage looked for and leaked to casing, effective protection sleeve in oil field.
2. being provided with traveling wheel 6 on first annular fixing seat or the second annular fixed seat, sleeve in oil field is facilitated to test leakage combination
The movement of tool, raising look for leakage efficiency, further reduce the extruding force to casing, while traveling wheel being avoided to be infiltrated by liquid,
Effective protection traveling wheel.
3. traveling wheel is magnet pulley, so that traveling wheel is fitted closely sleeve in oil field inner wall, improve sleeve in oil field and test leakage
The stability that combination tool is run in sleeve in oil field.
4. support tube plays a supporting role to central tube, so that central tube more consolidates firm, hydraulic bearing ability is into one
Step enhancing.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.
Claims (9)
1. a kind of sleeve in oil field tests leakage combination tool, which is characterized in that including central tube closed at one end, the central tube is located at
The tube wall in length direction middle position is equipped with the first open-work；Fixing sleeve is equipped with respectively on the tube wall of neighbouring central tube end positions
First annular fixing seat, fixing sleeve is equipped with the second annular fixed seat respectively again between each first annular fixing seat and the first open-work；
Two first annular fixing seats and two second annular fixed seats respectively symmetrically are located at the two sides of the first open-work；Phase
Sealing shroud is equipped with a rubber tube between adjacent first annular fixing seat and the second annular fixed seat, and adjacent is described first annular solid
Annular sealed space is constituted between reservation, the second annular fixed seat, center pipe outer wall and rubber tube inner wall；Each first annular fixation
Seat is equipped with the liquid-passing hole road of conducting respective annular confined space.
2. sleeve in oil field as described in claim 1 tests leakage combination tool, which is characterized in that each first annular fixing seat
And/or traveling wheel is provided on each second annular fixed seat.
3. sleeve in oil field as claimed in claim 2 tests leakage combination tool, which is characterized in that the traveling wheel is magnet pulley.
4. sleeve in oil field as described in claim 1 tests leakage combination tool, which is characterized in that the central tube inner sleeve is equipped with branch
Stay tube, the support tube are equipped with the second open-work of conducting corresponding with the first open-work.
5. sleeve in oil field as claimed in claim 4 tests leakage combination tool, which is characterized in that between the central tube and support tube
It is provided with link block.
6. sleeve in oil field as claimed in claim 4 tests leakage combination tool, which is characterized in that between the central tube and support tube
It is arranged in fitting.
7. sleeve in oil field as described in claim 1 tests leakage combination tool, which is characterized in that the other end of the central tube is equipped with
Ring flange.
8. sleeve in oil field as described in claim 1 tests leakage combination tool, which is characterized in that described central tube one end is saturating with first
Between hole, and a baffle is equipped in the pipeline of neighbouring first open-work position.
9. sleeve in oil field as described in claim 1 tests leakage combination tool, which is characterized in that connect a logical liquid on each liquid-passing hole road
Pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958735.9U CN208473842U (en) | 2018-06-21 | 2018-06-21 | Oil field casing leak-checking combination tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958735.9U CN208473842U (en) | 2018-06-21 | 2018-06-21 | Oil field casing leak-checking combination tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473842U true CN208473842U (en) | 2019-02-05 |
Family
ID=65214363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958735.9U Active CN208473842U (en) | 2018-06-21 | 2018-06-21 | Oil field casing leak-checking combination tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208473842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894559A (en) * | 2019-05-06 | 2020-11-06 | 中国石油化工股份有限公司 | Inner channel decompression restrictor |
-
2018
- 2018-06-21 CN CN201820958735.9U patent/CN208473842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894559A (en) * | 2019-05-06 | 2020-11-06 | 中国石油化工股份有限公司 | Inner channel decompression restrictor |
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| GR01 | Patent grant |