CN207048691U - A kind of compound oil well pipe of metallurgy type - Google Patents
A kind of compound oil well pipe of metallurgy type Download PDFInfo
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- CN207048691U CN207048691U CN201720833316.8U CN201720833316U CN207048691U CN 207048691 U CN207048691 U CN 207048691U CN 201720833316 U CN201720833316 U CN 201720833316U CN 207048691 U CN207048691 U CN 207048691U
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- pipe
- corrosion resistant
- resistant alloy
- oil pipe
- outer tube
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Abstract
The utility model discloses a kind of compound oil well pipe of metallurgy type, including outer tube, corrosion resistant alloy bushing pipe is arranged with outer tube, brazing layer is provided between corrosion resistant alloy bushing pipe and outer tube；Outer tube includes oil pipe, and the end of oil pipe is connected with corrosion resistant alloy ring by the way of friction welding, and oil pipe and corrosion resistant alloy ring are enclosed on brazing layer outer surface.The utility model is first to weld a corrosion resistant alloy ring for saving dual phase steel in the method for oil pipe pipe end friction welding (FW), corrosion resistant alloy ring uses two-phase steel loop, the purpose is to ensure the intensity of steel loop and the strength matching of oil pipe, so that tube body performance is consistent, then nickel-based solder is wound in lining outer wall, carries out the assembling of base lining, compound and homogeneous tube soldering.
Description
Technical field
It the utility model is related to oil exploration equipment technical field, and in particular to a kind of compound oil well pipe of metallurgy type.
Background technology
Following limitation be present in prior art：On the one hand it is using the corrosion resistant alloy of pure material in the subsurface environment of harshness
Pipe, the limitation of this method is use cost height；On the other hand it is to use mechanical bond multiple tube, while in pipe end built-up welding and base
Pipe is with the corrosion-resistant alloy layer of wall thickness, and this method has both sides limitation, first, pipe end built-up welding realizes that difficulty is larger, because underground
With multiple tube liner layer thickness, thickness is typically in 6mm or so typically after 1mm or so, basic unit, and built-up welding 6mm is thick on 1mm pipe
Overlay cladding when, the deformation of 1mm thickness lining is serious and shaping is bad, in addition easily by harmful member of basic unit in the weld deposit process of root
Element is diluted in lining, reduces the corrosion resisting property of lining；On the other hand it is that mechanical bond multiple tube is easily sent out in down-hole application
Raw lining delamination, influences body service life, increases operating cost.The utility model patent of Application No. 2009203084215,
It is that the method for using pipe end built-up welding ensures end as corrosion-resistant alloy layer, but because lining wall thickness is relatively thin in weld deposit process, very
Hardly possible is realized, and is mechanical bond between lining and basic unit, and lining delamination and drum easily occur during the practicality of underground
The phenomenon of bag, once lining failure occurs, it is necessary to carry well and retube, cause very big cost allowance.
Utility model content
The purpose of this utility model is to provide a kind of compound oil well pipe of metallurgy type, can effectively reduce lining during use
Deform failure phenomenon.
The utility model is the technical scheme adopted is that a kind of compound oil well pipe of metallurgy type, including outer tube, is arranged in outer tube
There is corrosion resistant alloy bushing pipe, brazing layer is provided between corrosion resistant alloy bushing pipe and outer tube；Outer tube includes oil pipe, and the end of oil pipe is connected with
Corrosion resistant alloy ring, oil pipe and corrosion resistant alloy ring are enclosed on brazing layer outer surface.
The characteristics of the utility model, also resides in,
The end of oil pipe is connected with corrosion resistant alloy ring by the way of friction welding.
Corrosion resistant alloy ring is two-phase steel loop.
The length of corrosion resistant alloy ring is 30mm-120mm.
Brazing layer is nickel-based solder layer.
A kind of beneficial effect of the compound oil well pipe of metallurgy type of the present utility model is that compared with the prior art, this practicality is new
Type is first to weld a corrosion resistant alloy ring for saving dual phase steel in the method for oil pipe pipe end friction welding (FW), and the purpose using two-phase steel loop is
Ensure the intensity of steel loop and the strength matching of oil pipe so that tube body performance is consistent, then winds nickel-based solder in lining outer wall, enters
The assembling of row base lining, compound and homogeneous tube soldering.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the compound oil well pipe of metallurgy type of the utility model.
In figure, 1. outer tubes, 2. corrosion resistant alloy bushing pipes, 3. brazing layers；
1-1. oil pipes, 1-2. corrosion resistant alloy rings.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
The compound oil well pipe of a kind of metallurgy type of the present utility model, as shown in figure 1, a kind of compound oil well pipe of metallurgy type, including
Outer tube 1, corrosion resistant alloy bushing pipe 2 is arranged with outer tube 1, brazing layer 3 is provided between corrosion resistant alloy bushing pipe 2 and outer tube 1；Outer tube 1 wraps
Oil pipe 1-1 is included, oil pipe 1-1 end is connected with corrosion resistant alloy ring 1-2, oil pipe 1-1 and corrosion resistant alloy ring 1-2 is enclosed on brazing layer
On 3 outer surfaces.
The characteristics of the utility model, also resides in,
Oil pipe 1-1 end is connected with corrosion resistant alloy ring 1-2 by the way of friction welding.
Corrosion resistant alloy ring 1-2 is two-phase steel loop.
Corrosion resistant alloy ring 1-2 length is 30mm-120mm.
Brazing layer 3 is nickel-based solder layer.
A kind of preparation method of the compound oil well pipe of metallurgy type, comprises the following steps：
Step 1, in the pipe end friction welding corrosion resistant alloy ring (1-2) of oil pipe (1-1), then to the interior table of oil pipe (1-1)
Face carries out abrasive jet cleaning；
Step 2, the outer surface of corrosion resistant alloy bushing pipe (2) is cleared up, then in the outer surface of corrosion resistant alloy bushing pipe (2)
Solder is twined, forms brazing layer (3)；
Step 3, the corrosion resistant alloy bushing pipe (2) that will be treated by the oil pipe (1-1) that step 1 treats with passing through step 2
Detonation is combined into mechanical composite oil pipe；
In step 4 brazing temperature be 1000-1100 DEG C, hardening heat be 790-820 DEG C, hardening media is water, and water temperature needs
Control is below 30 DEG C；Tempering process parameters be temperature be 650-750 DEG C, natural cooling in atmosphere after tempering, cooling
60-90 DEG C of speed/min；Technological parameter requirement is 1000-1100 DEG C of brazing temperature, induction coil voltage 440-460V, transmission electricity
Unit frequency 16.0-16.5Hz, Ar flow 20L/min, 790-820 DEG C of hardening heat, hardening media are water, and water temperature need to be controlled 30
Below DEG C.Secondary heat treatment --- in order to ensure the mechanical property of metallurgy type multiple tube base tube, it is necessary to the pipe after soldering quenching
Son is tempered；Tempering process parameters are 650-750 DEG C of temperature, induction coil voltage 200-260V, transmission electric machine frequency
18.0-18.5Hz, Ar flow 20L/min, natural cooling in atmosphere after tempering, 60-90 DEG C of cooling velocity/min；
Step 5, the metallurgical composite oil pipe cutting thread obtained to step 4；
Step 6, the metallurgical composite oil pipe obtained to step 5 carries out outer preservative treatment.
A kind of the advantages of metallurgy type of the present utility model compound oil well pipe is that compared with the prior art, the utility model is
A corrosion resistant alloy ring for saving dual phase steel first is welded in the method for oil pipe pipe end friction welding (FW), the purpose using two-phase steel loop is to ensure
The intensity of steel loop and the strength matching of oil pipe so that tube body performance is consistent, then winds nickel-based solder in lining outer wall, carries out base
Lining assembling, compound and homogeneous tube soldering.
Claims (5)
1. a kind of compound oil well pipe of metallurgy type, it is characterised in that including outer tube (1), corrosion resistant alloy is arranged with the outer tube (1)
Bushing pipe (2), brazing layer (3) is provided between the corrosion resistant alloy bushing pipe (2) and the outer tube (1)；The outer tube (1) includes oil pipe
(1-1), the end of the oil pipe (1-1) are connected with corrosion resistant alloy ring (1-2), the oil pipe (1-1) and the corrosion resistant alloy ring
(1-2) is enclosed on brazing layer (3) outer surface.
A kind of 2. compound oil well pipe of metallurgy type according to claim 1, it is characterised in that the end of the oil pipe (1-1)
It is connected with the corrosion resistant alloy ring (1-2) by the way of friction welding.
A kind of 3. compound oil well pipe of metallurgy type according to claim 2, it is characterised in that the corrosion resistant alloy ring (1-2)
For two-phase steel loop.
A kind of 4. compound oil well pipe of metallurgy type according to claim 1, it is characterised in that the corrosion resistant alloy ring (1-2)
Length be 30mm-120mm.
5. the compound oil well pipe of a kind of metallurgy type according to claim 1, it is characterised in that the brazing layer (3) is Ni-based
Solder layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833316.8U CN207048691U (en) | 2017-07-11 | 2017-07-11 | A kind of compound oil well pipe of metallurgy type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833316.8U CN207048691U (en) | 2017-07-11 | 2017-07-11 | A kind of compound oil well pipe of metallurgy type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048691U true CN207048691U (en) | 2018-02-27 |
Family
ID=61495449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720833316.8U Active CN207048691U (en) | 2017-07-11 | 2017-07-11 | A kind of compound oil well pipe of metallurgy type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207048691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313724A (en) * | 2017-07-11 | 2017-11-03 | 西安向阳航天材料股份有限公司 | A kind of metallurgy type is combined oil well pipe and its manufacture method |
| CN111975201A (en) * | 2020-06-28 | 2020-11-24 | 武汉钢铁有限公司 | Steel strip threading welding method |
-
2017
- 2017-07-11 CN CN201720833316.8U patent/CN207048691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313724A (en) * | 2017-07-11 | 2017-11-03 | 西安向阳航天材料股份有限公司 | A kind of metallurgy type is combined oil well pipe and its manufacture method |
| CN111975201A (en) * | 2020-06-28 | 2020-11-24 | 武汉钢铁有限公司 | Steel strip threading welding method |
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