CN209589792U - A kind of full-scale packing element corrosion experiment fixture - Google Patents
A kind of full-scale packing element corrosion experiment fixture Download PDFInfo
- Publication number
- CN209589792U CN209589792U CN201920240592.2U CN201920240592U CN209589792U CN 209589792 U CN209589792 U CN 209589792U CN 201920240592 U CN201920240592 U CN 201920240592U CN 209589792 U CN209589792 U CN 209589792U
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- packing element
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- packer
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Abstract
The utility model discloses a kind of full-scale packing element corrosion experiment fixture, which is made of compression member assembly and annular element.The device can simulate packing element and set situation in the actual of underground.By corrosion damage situation of the test packing element when underground actual sets, foundation is provided for the Optimal Select of packing element.The packing element damage that will not be generated because setting force is big.This device handling ease, assembling are simple.
Description
Technical field
The utility model belongs to petroleum equipment technical field more particularly to a kind of full-scale packing element corrosion experiment folder
Tool.
Background technique
Packer has been widely used in well, reservoir reconstruction and acid fracturing etc. as important oil field downhole tool
In technique, and packer.Packer is to be assembled by metal and rubber compounding, and rubber is used as the core of packer
Part is in underground complex working condition after packer setting, can be to packer rubber when downhole fluid contains corrosive gas and liquid
Cylinder generates certain destruction, it will leads to the failure of the leakproofness of packer, and then would develop into the mistake of entire wellbore integrity
Effect.Therefore simulation underground working corrosion experiment is carried out before entering well before to packer, in the underground working lower packet packing element
Adaptability evaluated, preferably go out suitable for the underground working packing element, ensure the integrality of entire pit shaft just
Just it is particularly important.
Much experimental rigs about packing element are disclosed at present, a kind of such as simulation downhole packer packing element is in high temperature
A kind of packer experimental provision involved in corrosion test method (CN201210401756.8) under high pressure, but the device is integrated
The disadvantage of numerous modules such as temperature setting, control, feedback and pressure perception and device maximum is to tighten sealing and unload
Hydraulic shackling machine or petroleum hydraulic tongs must be used during taking off out packing element, it is special to tighten the equipment used with shackle
One and process it is complicated；Packing element is simulated in the ageing test apparatus (CN201420330225.9) under actual working conditions
It is related to packer rubber high temperature ageing but is not that cannot simulate packing element in practical seat using full-scale packing element
Experimental conditions in the case of envelope；In a kind of contraction type packer simulation test device and test method (CN201510366856.5)
Only relate to examine the sealing situation of packer finished rubber；A kind of experiment detection device and method of high-temperature packer packing element
(CN201510094343.3) rubber high temperature ageing is also only related in and apparatus module is complicated.
To sum up: for the deficiency for the experimental provision for being currently related to packing element, first proposing a kind of full-scale packer rubber
Cylinder corrosion experiment fixture, the processing is simple for the fixture, and assembling is easy, and after packing element is assembled on fixture, is placed directly within one
In kind high-temperature high-pressure multiphase flow corrosion experimental method and device (CN201210154287.4), it can simulate various corrosive environments
In, corrosion condition of the full-scale packing element when actually setting provides foundation for the Optimal Select of packing element.
Utility model content
The utility model discloses a kind of full-scale packing element corrosion experiment fixture, this device handling ease, assemblings
Simply.
The utility model is realized in this way: a kind of full-scale packing element corrosion experiment fixture of, it is characterised in that:
The fixture is made of compression member assembly and annular element；The compression member is by compact heap, nut, packing element A, envelope
It is constituted every device packing element B, packing element C, packing element spacer ring A, packing element spacer ring B, center-pole and pedestal；Described
Annular element has certain wall thickness, and its thickness should be consistent with conventional oil casing wall thickness；The annular element lower part
It is provided with hole A and hole B, hole A and hole B are respectively positioned on the lower section of packing element C, which facilitates contact of the corrosive fluids with packer；
The center-pole top threaded portion is no more than the top of packing element A, and center-pole is from the top every device packing element A to envelope
Every device packing element C portion be smooth shaft.
The beneficial effects of the utility model are:
1. the processing is simple, assembling is easy: group wants component only two, annular element directly using the casing of Cementing just
Can, the oil pipe that petroleum also can be used directly in compression member is directly processed.
2. applicability is wide: the fixture is suitable for common three Tubing Packer, also can be used for two Tubing Packers and single glue
Cylinder packer, and processing adjustment can be carried out for the packing element of different-thickness and height.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram when packing element is not set in laboratory holder in the present invention.
Attached drawing 2 is structural schematic diagram when packing element sets rear in laboratory holder in the present invention.
In figure: 1- compact heap, 2- nut, 3- packing element A, 4- packing element B, 5- packing element C, 6- compression
Component assembly, the hole 7- A, 8- hole B, 9- packing element spacer ring A, 10- packing element spacer ring B, 11- annular element, in 12-
Core bar.
Specific embodiment
The embodiments of the present invention are further described with reference to the accompanying drawing:
Below by taking three Tubing Packers as an example.
Step 1, it assembles: by three packing elements according to shown in attached drawing 1, being fitted into polished rod in order；
Step 2, compress: by tightening nuts, compact heap is moving downward compression packer packing element, contracting packing element by
It is gradually compressed into and is contacted with the inner wall of annular element, the compression for being compressed to packing element setting is compressed away from stopping, after compression is good
Schematic diagram it is as shown in Fig. 2；
Step 3, corrosion experiment: fixture of the compression after good is put into corrosion experimental device, will be heated up after deoxygenation in device
To experiment preset temperature value, then it is passed through carbon dioxide and hydrogen sulfide corrosion gas thereto, experiment took out packer after 168 hours
Packing element carries out Damage Evaluation.
The above does not impose any limitation on the present invention, although the utility model passed through it is above-mentioned
Embodiment discloses, however is not intended to limit the utility model, any person skilled in the art, practical not departing from
In new technique aspects, is made when the technology contents using the disclosure above and change or be modified to a bit the equivalent of equivalent variations
Embodiment, but all contents without departing from technical solutions of the utility model, according to the technical essence of the utility model to the above reality
Any simple modification, equivalent change and modification made by example are applied, are still within the scope of the technical solutions of the present invention.
Claims (1)
1. a kind of full-scale packing element corrosion experiment fixture, it is characterised in that: the fixture is by compression member assembly (6) and ring
Shape component (11) is constituted；The compression member assembly (6) is by compact heap (1), nut (2), packing element A (3), packer
Packing element B (4), packing element C (5), packing element spacer ring A (9), packing element spacer ring B (10), center-pole (12) and bottom
Seat (13) is constituted；The annular element (11) has certain wall thickness, and its thickness should be with conventional oil casing wall thickness one
It causes；Described annular element (11) lower part is provided with hole A (7) and hole B (8), and hole A (7) and hole B (8) are respectively positioned on packing element C
(5) lower section；Center-pole (12) the top threaded portion is no more than the top of packing element A (3), and center-pole (12)
It is partially smooth shaft from the top of packing element A (3) to packing element C (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240592.2U CN209589792U (en) | 2019-02-25 | 2019-02-25 | A kind of full-scale packing element corrosion experiment fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240592.2U CN209589792U (en) | 2019-02-25 | 2019-02-25 | A kind of full-scale packing element corrosion experiment fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209589792U true CN209589792U (en) | 2019-11-05 |
Family
ID=68356355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920240592.2U Expired - Fee Related CN209589792U (en) | 2019-02-25 | 2019-02-25 | A kind of full-scale packing element corrosion experiment fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209589792U (en) |
-
2019
- 2019-02-25 CN CN201920240592.2U patent/CN209589792U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20210225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |