CN209510261U - A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube - Google Patents
A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube Download PDFInfo
- Publication number
- CN209510261U CN209510261U CN201920168058.5U CN201920168058U CN209510261U CN 209510261 U CN209510261 U CN 209510261U CN 201920168058 U CN201920168058 U CN 201920168058U CN 209510261 U CN209510261 U CN 209510261U
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- China
- Prior art keywords
- corrosion
- inner tube
- petroleum
- box cupling
- layers
- Prior art date
- 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
- 239000003208 petroleum Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 56
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000011701 zinc Substances 0.000 claims abstract description 21
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 11
- 239000003129 oil well Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 230000000035 biogenic effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to petroleum technology fields, and disclose a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, including inner tube set, fixed block, anti-corrosion zinc layers, internal screw thread, outer tube sleeve, anti-corrosion layers of chrome, cover skin, cushion block, threaded block and oil pipe, the inside of said inner tube set is fixedly connected with fixed block, the outer surface of the fixed block is coated with anti-corrosion zinc layers, said inner tube set inside and be located at fixed block at left and right sides of be equipped with internal screw thread, the internal screw thread is in contact with anti-corrosion zinc layers, the outside of said inner tube set is fixedly connected with outer tube sleeve, the outside of the outer tube sleeve is coated with anti-corrosion layers of chrome, the outside of the anti-corrosion layers of chrome is bonded with set skin, the left and right sides of said inner tube set is bonded with cushion block, the oil pipe is fixedly connected with threaded block towards inner tube set on one side.The dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, realizes the better purpose of Corrosion Protection, prevents the generation of oil well pipe break-off accident.
Description
Technical field
The utility model relates to petroleum technology field, specially a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube.
Background technique
Petroleum, one of main object of geological prospecting are a kind of sticky, dark brown liquid, referred to as " industrial blood
There are petroleum storage in liquid ", upper crustal some areas, and main component is the mixture of various alkane, cycloalkane, aromatic hydrocarbon, petroleum
There is biogenic deposit to become oil and the oily two kinds of theories of petrochemical industry at oil machine reason, the former more widely receives, it is believed that petroleum be ancient times ocean or
Biology in lake is formed by very long evolution, is belonged to biogenic deposit and is become oil, non-renewable；The latter thinks that petroleum is by the earth's crust
Interior carbon itself generates, and unrelated with biology, renewable, petroleum is mainly used as fuel oil and gasoline and many chemical works
Industry product, such as solution, chemical fertilizer, insecticide and plastics raw material.
The existing dedicated box cupling of oil water well tube is mainly used for the connection of oil pipe, solves common box cupling stress concentration and produces easily
The problem of raw fracture tired out, but the etch-proof performance of the dedicated box cupling of existing oil water well tube is inadequate in the actual use process
Good, in oil drilling, oil pipe and box cupling need the erosion outside prolonged receive to will lead to once box cupling is corroded
The generation of oil well pipe break-off accident, so a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube is proposed to solve above-mentioned mentioned
Out the problem of.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube,
Has the more preferable advantage of Corrosion Protection, it is not good enough to solve the etch-proof performance of the dedicated box cupling of existing oil water well tube, in oil
When the drilling well of field, oil pipe and box cupling need the erosion outside prolonged receive to will lead to oil well pipe once box cupling is corroded
The problem of generation of break-off accident.
(2) technical solution
To realize the above-mentioned better purpose of Corrosion Protection, the utility model is provided the following technical solutions: in a kind of petroleum
Serve as a contrast the dedicated box cupling of anti-corrosion oil water well tube, including inner tube set, fixed block, anti-corrosion zinc layers, internal screw thread, outer tube sleeve, anti-corrosion layers of chrome, set
The inside of skin, cushion block, threaded block and oil pipe, said inner tube set is fixedly connected with fixed block, and the outer surface of the fixed block is coated with
There are an anti-corrosion zinc layers, the inside of said inner tube set and is located at left and right sides of fixed block and is equipped with internal screw thread, the internal screw thread and anti-
Rotten zinc layers are in contact, and the outside of said inner tube set is fixedly connected with outer tube sleeve, and the outside of the outer tube sleeve is coated with anti-corrosion layers of chrome,
The outside of the anti-corrosion layers of chrome is bonded with set skin, and the left and right sides of said inner tube set is bonded with cushion block, and the oil pipe is in
Pipe sleeve is fixedly connected with threaded block on one side, and the threaded block is threadedly coupled with internal screw thread.
Preferably, the thickness of the anti-corrosion zinc layers is no more than two millimeters, and the thickness of the anti-corrosion layers of chrome is no more than three millimeters.
Preferably, the set skin is rubber, and said inner tube set is N80 petroleum steel pipe, and the outer tube sleeve is L80 petroleum steel
Pipe.
Preferably, the quantity of the internal screw thread is two, and the quantity of the oil pipe and threaded block is two.
Preferably, the cushion block is circular ring shape, the cushion block with a thickness of one millimeter, the internal screw thread and threaded block phase
Match.
Preferably, the width of the oil pipe is greater than the width of inner tube set, and the length of the oil pipe is greater than the length of inner tube set.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, has
Below the utility model has the advantages that
The dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, it is further to reinforce by fixing inner tube set and outer tube sleeve
The intensity of box cupling reduces the hidden danger of box cupling fracture, and the anti-corrosion zinc layers that the outer surface of fixed block is coated with have excellent anticorrosion
Performance, corrosion when reducing transporting petroleum to fixed block, the anti-corrosion layers of chrome being in addition coated with outside outer tube sleeve is likewise supplied with excellent
Anti-corrosion capability, engagement sleeves skin are bonded in the surface of anti-corrosion layers of chrome, have thickeied etch-proof defence line, so that etch-proof performance obtains
After passing through threaded block and internal screw thread connection further to be promoted, and between oil pipe and inner tube set, after cushion block is extruded, in oil
Further lift-off seal effect, realizes the better purpose of Corrosion Protection between pipe and inner tube set, prevents oil well pipe disconnected
The generation of de- accident.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the attachment structure schematic diagram of internal screw thread and anti-corrosion zinc layers in the utility model.
In figure: 1 inner tube set, 2 fixed blocks, 3 anti-corrosion zinc layers, 4 internal screw threads, 5 outer tube sleeves, 6 anti-corrosion layers of chrome, 7 sets of skins, 8 cushion blocks,
9 threaded blocks, 10 oil pipes.
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.
A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube referring to FIG. 1-2, including inner tube set 1, fixed block 2, anti-corrosion
Zinc layers 3, internal screw thread 4, outer tube sleeve 5, anti-corrosion layers of chrome 6, set skin 7, cushion block 8, threaded block 9 and oil pipe 10, the inside of inner tube set 1 are fixed
It is connected with fixed block 2, the outer surface of fixed block 2 is coated with anti-corrosion zinc layers 3, the inside of inner tube set 1 and the left and right for being located at fixed block 2
Two sides are equipped with internal screw thread 4, and internal screw thread 4 is in contact with anti-corrosion zinc layers 3, internal screw thread 4 and anti-corrosion zinc layers 3 can by plating or
The method of hot dip is formed, and the outside of inner tube set 1 is fixedly connected with outer tube sleeve 5, and the outside of outer tube sleeve 5 is coated with anti-corrosion layers of chrome 6, is prevented
The thickness of rotten zinc layers 3 is no more than two millimeters, and the thickness of anti-corrosion layers of chrome 6 is no more than three millimeters, and the outside of anti-corrosion layers of chrome 6 is bonded with set
Skin 7, set skin 7 are rubber, and inner tube set 1 is N80 petroleum steel pipe, and outer tube sleeve 5 is L80 petroleum steel pipe, and the left and right sides of inner tube set 1 is equal
It is bonded with cushion block 8, oil pipe 10 is fixedly connected with threaded block 9 towards inner tube set 1 on one side, and the quantity of internal screw thread 4 is two, oil pipe
10 and the quantity of threaded block 9 be two, threaded block 9 is threadedly coupled with internal screw thread 4, and cushion block 8 is circular ring shape, the thickness of cushion block 8
It is one millimeter, internal screw thread 4 matches with threaded block 9, and the width of oil pipe 10 is greater than the width of inner tube set 1, and the length of oil pipe 10 is big
In the length of inner tube set 1, by the way that inner tube set 1 and outer tube sleeve 5 is fixed, it is disconnected to reduce box cupling for the intensity of further buttress coupling
The hidden danger split, and the anti-corrosion zinc layers 3 that the outer surface of fixed block 2 is coated with have excellent Corrosion Protection, when reducing transporting petroleum
Corrosion to fixed block 2, the anti-corrosion layers of chrome 6 being in addition coated with outside outer tube sleeve 5 are likewise supplied with excellent anti-corrosion capability, engagement sleeves
Skin 7 is bonded in the surface of anti-corrosion layers of chrome 6, has thickeied etch-proof defence line, so that etch-proof performance is further promoted,
And after being connected between oil pipe 10 and inner tube set 1 by threaded block 9 and internal screw thread 4, after cushion block 8 is extruded, in oil pipe 10 and interior
Further lift-off seal effect, realizes the better purpose of Corrosion Protection, prevents oil well pipe break-off accident between pipe sleeve 1
Generation.
In conclusion the dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, by the way that inner tube set 1 and outer tube sleeve 5 is fixed, into
The intensity of the buttress coupling of one step reduces the hidden danger of box cupling fracture, and the anti-corrosion zinc layers 3 that the outer surface of fixed block 2 is coated with have
Excellent Corrosion Protection, corrosion when reducing transporting petroleum to fixed block 2, the anti-corrosion layers of chrome 6 being in addition coated with outside outer tube sleeve 5
It is likewise supplied with excellent anti-corrosion capability, engagement sleeves skin 7 is bonded in the surface of anti-corrosion layers of chrome 6, has thickeied etch-proof defence line, has made
It obtains etch-proof performance further to be promoted, and is connected between oil pipe 10 and inner tube set 1 by threaded block 9 and internal screw thread 4
Later, after cushion block 8 is extruded, further lift-off seal effect, realizes Corrosion Protection between oil pipe 10 and inner tube set 1
Better purpose prevents the generation of oil well pipe break-off accident.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube, including it is inner tube set (1), fixed block (2), anti-corrosion zinc layers (3), interior
Screw thread (4), outer tube sleeve (5), anti-corrosion layers of chrome (6), set skin (7), cushion block (8), threaded block (9) and oil pipe (10), it is characterised in that:
It is fixedly connected on the inside of said inner tube set (1) fixed block (2), the outer surface of the fixed block (2) is coated with anti-corrosion zinc layers
(3), the inside of said inner tube set (1) and be located at fixed block (2) at left and right sides of be equipped with internal screw thread (4), the internal screw thread (4)
It is in contact, is fixedly connected on the outside of said inner tube set (1) outer tube sleeve (5) with anti-corrosion zinc layers (3), outside the outer tube sleeve (5)
Portion is coated with anti-corrosion layers of chrome (6), and the outside of the anti-corrosion layers of chrome (6) is bonded with set skin (7), the left and right two of said inner tube set (1)
Side is bonded with cushion block (8), and the oil pipe (10) is fixedly connected with threaded block (9), the screw thread towards inner tube set (1) on one side
Block (9) is threadedly coupled with internal screw thread (4).
2. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube according to claim 1, it is characterised in that: the anti-corrosion
The thickness of zinc layers (3) is no more than two millimeters, and the thickness of the anti-corrosion layers of chrome (6) is no more than three millimeters.
3. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube according to claim 1, it is characterised in that: the set skin
It (7) is rubber, said inner tube set (1) is N80 petroleum steel pipe, and the outer tube sleeve (5) is L80 petroleum steel pipe.
4. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube according to claim 1, it is characterised in that: the interior spiral shell
The quantity of line (4) is two, and the quantity of the oil pipe (10) and threaded block (9) is two.
5. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube according to claim 1, it is characterised in that: the cushion block
(8) be circular ring shape, the cushion block (8) with a thickness of one millimeter, the internal screw thread (4) matches with threaded block (9).
6. a kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube according to claim 1, it is characterised in that: the oil pipe
(10) width is greater than the width of inner tube set (1), and the length of the oil pipe (10) is greater than the length of inner tube set (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168058.5U CN209510261U (en) | 2019-01-30 | 2019-01-30 | A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168058.5U CN209510261U (en) | 2019-01-30 | 2019-01-30 | A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510261U true CN209510261U (en) | 2019-10-18 |
Family
ID=68203545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920168058.5U Expired - Fee Related CN209510261U (en) | 2019-01-30 | 2019-01-30 | A kind of dedicated box cupling of petroleum inside lining anti-corrosive oil water well tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510261U (en) |
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2019
- 2019-01-30 CN CN201920168058.5U patent/CN209510261U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 |