CN205741244U - A kind of wear-and corrosion-resistant drilling rod - Google Patents
A kind of wear-and corrosion-resistant drilling rod Download PDFInfo
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- CN205741244U CN205741244U CN201620527913.3U CN201620527913U CN205741244U CN 205741244 U CN205741244 U CN 205741244U CN 201620527913 U CN201620527913 U CN 201620527913U CN 205741244 U CN205741244 U CN 205741244U
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- corrosion
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- wear
- nickel coating
- drilling rod
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Abstract
The utility model discloses a kind of wear-and corrosion-resistant drilling rod, it includes the metal composite layer that tubular body and multiple layer metal are closely composited, described metal composite layer at least includes the basic unit that bonds, intermediate layer and wear-and corrosion-resistant layer, described bonding basic unit is shaggy first nickel coating, described intermediate layer is copper coating, described wear-and corrosion-resistant layer is compact crystallization, ganoid second nickel coating, described first nickel coating is attached on the inwall of tubular body and/or the surface of outer wall, described copper coating is electroplated on described first nickel coating, described second nickel coating is electroplated on described copper coating.Wear-and corrosion-resistant drilling rod of the present utility model, has the performances such as good corrosion resistance, wearability, antiscour, Wax proofing and good antiscale property, and can anti-CO2、H2The gas attacks such as S, heat resistance reaches 300 DEG C.
Description
Technical field
This utility model relates to a kind of wear-and corrosion-resistant drilling rod.
Background technology
Drilling rod is the afterbody steel pipe with a chain for binding criminals stricture of vagina, be used for connecting rig landscape apparatus and be positioned at drilling well bottom bore mill equipment or
Bottom outlet device.The purposes of drilling rod is that drilling mud is transported to drill bit, and improves, reduces or rotate bottom outlet dress together with drill bit
Put.Drilling rod allows for bearing huge interior external pressure, distorts, bends and vibrate.In the exploitation and extractive process of oil gas, drilling rod
Can be used for multiple times.
Due to the difference of geological conditions, the quality of mud oil is uneven, most containing substantial amounts of silt, impurity
And sandstone, in drilling process, drilling rod to be on active service in High Temperature High Pressure, high corrosion and in the environment of sandstone washes away rapidly, this
Plant severe use environment, greatly reduce the service life of drilling rod.The main cause of drilling rod corrosion does not scrapes mud when being and pull out of hole,
Stick to the mud film moisture evaporation process in atmosphere of drilling-rod external wall and being formed just stay after mud cake shell Iron Ore Powder, barite,
Soil powder, Paris white etc., as the solid formation of skeleton, are referred to as dirt layer.Dirt layer contact with drilling rod surface, produce three kinds interrelated
Local corrosion, i.e. oxygen supply difference micro-cell corrosion, galvanic corrosion and crevice corrosion.
At present, the means of defence used drilling rod both at home and abroad is mainly coating anticorrosive coat, thus extends the use longevity of drilling rod
Life.The shortcoming of coating anticorrosive coat is: anticorrosive coat also exists pore (pin hole) or leak source, and also can produce one in production process
A little damaged, such corrosive medium can carry out corrosion reaction by pore or leak source on the interface of anticorrosive coat and metal, makes
Locally anticorrosive coat preferentially comes off, and uses the prolongation of time, the most under the high temperature conditions, anticorrosive coat in aqueous along with anticorrosive coat
This failure mode and the order of severity more and more significant.
Along with drilling environment is more and more harsher, the drill footage degree of depth is increasingly deeper, causes drilling rod corrosion increasingly severe, existing
Some coating drilling rods can not meet the demand of onsite application, seeks a kind of novel drilling rod process for treating surface more and more urgent
Cut.
Utility model content
In place of above-mentioned the deficiencies in the prior art, this utility model provides a kind of wear-and corrosion-resistant drilling rod.
This utility model provides a kind of wear-and corrosion-resistant drilling rod, and it includes the gold that tubular body and multiple layer metal are closely composited
Belonging to composite bed, described metal composite layer at least includes bond basic unit, intermediate layer and wear-and corrosion-resistant layer, and described bonding basic unit is surface
The first coarse nickel coating, described intermediate layer is copper coating, and described wear-and corrosion-resistant layer is compact crystallization, ganoid second nickel
Coating, described first nickel coating is attached on the inwall of tubular body and/or the surface of outer wall, and the plating of described copper coating is described the
On one nickel coating, described second nickel coating is electroplated on described copper coating.
The thickness of described first nickel coating is 5-10 μm.
The thickness of described copper coating is 20-40 μm.
The thickness of described second nickel coating is 5-10 μm.
Described metal composite layer can also include plating layers of chrome on described second nickel coating.
Compared with prior art, this utility model has the advantage that
(1) wear-and corrosion-resistant drilling rod of the present utility model, the metal composite layer being closely composited due to multiple layer metal, at electricity
During plating, two kinds of coating can form two kinds of atomic arrangement, intersects and hides, there's almost no leak source, stopped pin between crystal
The appearance in hole, antiseptic effect is greatly promoted.Furthermore, the first nickel coating, copper coating and second is at least included due to metal composite layer
Nickel coating, is protected the tubular body of drilling rod by multiple layer metal, even if there is breakage, is also at nickel coating and copper
Forming electrochemical corrosion between coating, nickel coating is first corroded, so that the tubular body of drilling rod is protected, reaches anticorrosion mesh
's.
(2) wear-and corrosion-resistant drilling rod of the present utility model, the first nickel coating and drilling rod have the best adhesion, and copper coating
The thickness of overall coating can be significantly increased, and the second nickel coating has the best wearability so that metal composite layer has
There is extraordinary wear-resisting, anticorrosion overall performance.
(3) wear-and corrosion-resistant drilling rod of the present utility model, has good corrosion resistance, wearability, antiscour, Wax proofing and prevents
The performances such as fouling, and can anti-CO2、H2The gas attacks such as S, heat resistance reaches 300 DEG C.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of wear-and corrosion-resistant drilling rod of the present utility model；
Reference: 1-tubular body, 2-the first nickel coating, 3-copper coating, 4-the second nickel coating.
Detailed description of the invention
Further illustrate wear-and corrosion-resistant drilling rod of the present utility model below by embodiment, but it is not considered that this practicality is new
Type is limited only in below example.
As it is shown in figure 1, wear-and corrosion-resistant drilling rod of the present utility model includes what tubular body 1 and multiple layer metal were closely composited
Metal composite layer, metal composite layer at least includes bond basic unit, intermediate layer and wear-and corrosion-resistant layer, and bonding basic unit is rough surface
, hardness is relatively low, turn white and extraordinary first nickel coating 2 of basal body binding force, intermediate layer is copper coating 3, and wear-and corrosion-resistant layer is
The second nickel coating 4 that compact crystallization, smooth surface, hardness are high, on the surface of the inwall that the first nickel coating 2 is attached to tubular body 1,
Copper coating 3 is electroplated on the first nickel coating 2, and the second nickel coating 4 is electroplated on copper coating 3.As disposable embodiment, the
On the surface of the outer wall that one nickel coating 2 is attached to tubular body 1, the first nickel coating 2 is attached to the table of the inner and outer wall of tubular body 1
On face.
The thickness of the first nickel coating 2 is 5-10 μm.
The thickness of copper coating 3 is 20-40 μm.
The thickness of the second nickel coating 4 is 5-10 μm.
The preparation technology of this utility model wear-and corrosion-resistant drilling rod:
(1) quartz sand and steel sand by specific mesh number are mixed by 1:1, eliminate rust drilling rod tubular body 1 inwall,
Then clean water；
(2) carrying out the plating of the first nickel coating 2 the most again, the temperature of plating 55 DEG C, electric current are 550A, obtain surface thick
Rough, hardness is relatively low, turn white and extraordinary first nickel coating 2 of basal body binding force.After the plating of the first nickel coating 2 completes, with clear
Water cleans, dries up；
(3) plating of copper coating 3, after having electroplated, by clean water, dries up；
(4) carrying out the plating of the second nickel coating 4 the most again, the temperature of plating 55 DEG C, electric current are 500A, obtain crystallization and cause
The second nickel coating 4(hardness that close, bright, hardness is high is more than the first nickel coating 2).After the plating of the second nickel coating 4 completes, with clear
Water cleans, dries up.
Claims (4)
1. a wear-and corrosion-resistant drilling rod, it is characterised in that it includes that the metal that tubular body and multiple layer metal are closely composited is multiple
Closing layer, described metal composite layer at least includes bond basic unit, intermediate layer and wear-and corrosion-resistant layer, and described bonding basic unit is rough surface
The first nickel coating, described intermediate layer is copper coating, described wear-and corrosion-resistant layer be compact crystallization, ganoid second nickel plating
Layer, described first nickel coating is attached on the inwall of tubular body and/or the surface of outer wall, and described copper coating is electroplated described first
On nickel coating, described second nickel coating is electroplated on described copper coating.
Drilling rod the most according to claim 1, it is characterised in that: the thickness of described first nickel coating is 5-10 μm.
Drilling rod the most according to claim 1 and 2, it is characterised in that: the thickness of described copper coating is 20-40 μm.
Drilling rod the most according to claim 1 and 2, it is characterised in that: the thickness of described second nickel coating is 5-10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620527913.3U CN205741244U (en) | 2016-06-02 | 2016-06-02 | A kind of wear-and corrosion-resistant drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620527913.3U CN205741244U (en) | 2016-06-02 | 2016-06-02 | A kind of wear-and corrosion-resistant drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205741244U true CN205741244U (en) | 2016-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620527913.3U Active CN205741244U (en) | 2016-06-02 | 2016-06-02 | A kind of wear-and corrosion-resistant drilling rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN205741244U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119297A (en) * | 2017-04-28 | 2017-09-01 | 胜利油田胜鑫防腐有限责任公司 | A kind of oil field tube and its electro-plating method and plating materials |
| CN112901086A (en) * | 2021-02-05 | 2021-06-04 | 中国石油天然气集团有限公司 | Erosion-resistant composite aluminum alloy drill rod and manufacturing process thereof |
-
2016
- 2016-06-02 CN CN201620527913.3U patent/CN205741244U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107119297A (en) * | 2017-04-28 | 2017-09-01 | 胜利油田胜鑫防腐有限责任公司 | A kind of oil field tube and its electro-plating method and plating materials |
| CN107119297B (en) * | 2017-04-28 | 2018-09-25 | 胜利油田胜鑫防腐有限责任公司 | A kind of oil field tube and its electro-plating method and plating materials |
| CN112901086A (en) * | 2021-02-05 | 2021-06-04 | 中国石油天然气集团有限公司 | Erosion-resistant composite aluminum alloy drill rod and manufacturing process thereof |
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