CN101934555B - Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe - Google Patents
Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe Download PDFInfo
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- CN101934555B CN101934555B CN2010102567761A CN201010256776A CN101934555B CN 101934555 B CN101934555 B CN 101934555B CN 2010102567761 A CN2010102567761 A CN 2010102567761A CN 201010256776 A CN201010256776 A CN 201010256776A CN 101934555 B CN101934555 B CN 101934555B
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Abstract
The invention discloses a method for toughening ceramic layers at the end parts of a centrifugal self-propagating ceramic lining compound oil pipe, which is characterized by comprising the following steps of: arranging 5-6% of 3mol% yttrium oxide stabilized ZrO2 with granularity of 0.4-0.6 mu m and 95-94% of Al+Fe2O3 thermite mixed powder in 20cm ranges at two ends in the oil pipe, and arranging general Al+Fe2O3 thermite mixed powder in other parts in the oil pipe; and after centrifugal self-propagating high temperature reaction, generating ZrO2 toughened Al2O3 ceramic layers in the 20cm ranges at two ends in the oil pipe, and arranging general alpha-Al2O3 ceramic lining layers in other parts. By the invention, the ceramic layers at the two ends have higher mechanical shock property and fracture toughness; the structure of the ZrO2 toughened Al2O3 ceramic layer comprises Al2O2 particles and ZrO2 at borders and has the hardness of HV1150-1200 and the thickness of 1.7-2.0mm; macrocracks and stripping begin to appear after the ZrO2 toughened Al2O3 ceramic layer is impacted 20-22 times by a 25J drop hammer. The invention has the advantages of simple technical process and high production efficiency, and the ceramic layers at the two ends of a centrifugal self-propagating ceramic lining compound oil pipe, which are produced by the invention, has impact resistance effect obviously superior to that of the alpha-Al2O3 ceramic lining layers.
Description
Technical field
The present invention relates to a kind of centrifugal from spreading the toughness reinforcing method of ceramic liner composite oil pipe two ends ceramic layer.
Background technology
The oil field subsurface environment is very abominable, and the well liquid temp is high and contain H
2S, CO
2Deng corrosive medium, and the eccentric wear between rod string and the oil pipe is very serious in inclined shaft or horizontal well, and therefore corrosion and wearing and tearing are the two big reasons that cause oil pipe initial failure.Consider that from cost of winning oil pick-up tube generally adopts low-cost structure steel oil pipe (models such as N80 and J55) both at home and abroad, the corrosion resistance and the wearability of these oil pipes are barely satisfactory, and the service life under harsh hole condition, average less than was 2 years.Centrifugal self propagating high temperature synthesize ceramic liner composite oil pipe is the desirable approach that solves a common oil pick-up tube corrosion and a wearing and tearing difficult problem.Centrifugal self propagating high temperature synthetic (SHS) technology preparation composite pipe with ceramic lining is a new material synthetic technology of rising in recent years, and major advantage is α-Al
2O
3Ceramic lining has high hardness and chemical stability, and ceramic-lined composite steel tube has great superiority aspect anticorrosion antiwear.Ceramic liner composite oil pipe is in the down-hole operation process; Pipe end often and replacer bump; On this outer tube box cupling in the button process, the matrix steel tube distortion also can and be impacted ceramic-lined generation extruding, can cause ceramic-lined the breaking and collapse porcelain in end; Therefore, the toughness of raising ceramic lining has important engineering significance.
Summary of the invention
The object of the invention provides a kind of centrifugal from spreading the toughness reinforcing method of ceramic liner composite oil pipe two ends ceramic layer, so that the two ends ceramic layer has higher mechanical shock performance and fracture toughness.
For realizing above-mentioned purpose; It is a kind of centrifugal from spreading ceramic liner composite oil pipe end ceramic layer method for toughening that the present invention provides; It is characterized in that: when filling with substance, arrange that weight percent content is that the yttrium of 3mol% of the 0.4-0.6 μ m granularity of 5%-6% is stablized ZrO in the oil pipe in each 20 centimetre length scope of two ends
2With weight percent content be the Al+Fe of 94%-95%
2O
3The thermite mixed powder, remainder is still arranged common Al+Fe in the pipe
2O
3The thermite mixed powder after the centrifugal self propagating high temperature reaction, generates the Zirconia reinforced alumina ceramic layer in each 20 centimetre length of composite oil pipe two ends, remainder still is common α-Al
2O
3Ceramic lining.
3mol% in the yttria-stabilized zirconia of 3mol% is meant zirconic content, is a kind of product specification.
The present invention makes the two ends ceramic layer have higher mechanical shock performance and fracture toughness through in each 20 centimetre length of two ends, forming the structural design of Zirconia reinforced alumina ceramic layer, and the tissue of Zirconia reinforced alumina ceramic layer is by Al
2O
3Particle be positioned at ZrO on the border
2Form, hardness is HV1150-1200, and thickness is 1.7-2.0mm, adopts the 25J drop impact to begin for 20-22 time macroscopic cracking to occur or peel off; Technical process is simple, and production efficiency is high; The impulse-durability effect of the ceramic liner composite oil pipe two ends ceramic layer of the present invention's preparation obviously is superior to α-Al
2O
3Ceramic lining.
Description of drawings
Fig. 1 is the centrifugal ceramic liner composite oil pipe one end ceramic layer structure sketch map that spreads certainly;
Fig. 2 is the microscopic structure of Zirconia reinforced alumina ceramic layer;
Fig. 3 is the X ray diffracting spectrum of Zirconia reinforced alumina ceramic layer.
The specific embodiment
Among Fig. 1: tube material 1, iron layer 2, Zirconia reinforced alumina ceramic layer 3, common aluminium oxide ceramic layer 4.
1, batch mixing
By 6% weight percent content the yttrium of the 3mol% of 0.3-0.5 μ m granularity is stablized ZrO
2The Al+Fe of powder and 94% weight percent content
2O
3The thermite powder fully mixed 1 hour in batch mixer;
2, charging
With loader batch mixing is arranged in each 20 centimetre length of oil pipe two ends of horizontal positioned, remainder is arranged common Al+Fe in the oil pipe
2O
3The thermite powder, two ends install helmet additional then;
3, centrifugal synthetic from spreading
Referring to ZL200710055681.1.The steel pipe that installs reactant is snapped on the centrifuge, starts centrifuge, reach desired speed after, the end ignition reaction thing at pipe after the cooling, promptly respectively has the Zirconia reinforced alumina ceramic layer of 20 centimeter length at the composite oil pipe two ends.
Embodiment 2
1, batch mixing
By 5% weight percent content the yttrium of the 3mol% of 0.3-0.5 μ m granularity is stablized ZrO
2The Al+Fe of powder and 95% weight percent content
2O
3The thermite powder fully mixed 1 hour in batch mixer;
2, charging
Batch mixing is arranged in oil pipe two ends 20 centimetre lengths of horizontal positioned with loader, remainder is arranged common Al+Fe in the oil pipe
2O
3The thermite powder, two ends install helmet additional then;
3, centrifugal synthetic from spreading
The steel pipe that installs reactant is snapped on the centrifuge, starts centrifuge, reach desired speed after, the end ignition reaction thing at pipe after the cooling, promptly respectively has the Zirconia reinforced alumina ceramic layer of 20 centimeter length at the composite oil pipe two ends.
Test Example 1
Adopt the N80 ceramic liner composite oil pipe two ends of the Φ 73mm of method for preparing to carry out the 25J falling weight impact test, on average impact 20 times after, ceramic layer cracking or avalanche, the fracture toughness value that adopts 10Kg load indentation method to measure ceramic layer is 5MPam
-1/2Under 25J falling weight impact test condition, the N80 ceramic liner composite oil pipe ceramic layer of common Φ 73mm, ceramic layer cracking or avalanche after on average impacting 6 times, the fracture toughness value that indentation method is measured ceramic layer is 1.3MPam
-1/2
Test Example 2
Adopt the J55 ceramic liner composite oil pipe two ends of the Φ 73mm of method for preparing to carry out the 25J falling weight impact test, on average impact 22 times after, ceramic layer cracking or avalanche, the fracture toughness value that adopts 10Kg load indentation method to measure ceramic layer is 5.3MPm
-1/2Under 25J falling weight impact test condition, the J55 ceramic liner composite oil pipe ceramic layer of common Φ 73mm, ceramic layer cracking or avalanche after on average impacting 3 times, the fracture toughness value that indentation method is measured ceramic layer is 1.5MPam
-1/2
Claims (1)
- One kind centrifugal from spreading ceramic liner composite oil pipe end ceramic layer method for toughening; It is characterized in that: when filling with substance, arrange that weight percent content is that the yttrium of 3mol% of the 0.4-0.6 μ m granularity of 5%-6% is stablized ZrO in the oil pipe in each 20 centimetre length scope of two ends 2With weight percent content be the Al+Fe of 94%-95% 2O 3The thermite mixed powder, remainder is still arranged common Al+Fe in the pipe 2O 3The thermite mixed powder after the centrifugal self propagating high temperature reaction, generates the Zirconia reinforced alumina ceramic layer in each 20 centimetre length of composite oil pipe two ends, remainder still is common α-Al 2O 3Ceramic lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102567761A CN101934555B (en) | 2010-08-19 | 2010-08-19 | Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102567761A CN101934555B (en) | 2010-08-19 | 2010-08-19 | Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101934555A CN101934555A (en) | 2011-01-05 |
| CN101934555B true CN101934555B (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102567761A Expired - Fee Related CN101934555B (en) | 2010-08-19 | 2010-08-19 | Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406258B (en) * | 2022-01-25 | 2024-04-30 | 华清平耐磨科技(苏州)有限公司 | Thermite reduction reaction powder coated ZTA ceramic particles and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3137068B2 (en) * | 1998-03-25 | 2001-02-19 | 日本電気株式会社 | Optical burst signal repeater |
| CN1844037A (en) * | 2006-04-30 | 2006-10-11 | 太原理工大学 | Multi-layered composite tube with ceramic lining and preparation method thereof |
| CN1317235C (en) * | 2005-11-07 | 2007-05-23 | 北京科技大学 | Production process of thin-wall steel pipe with ceramic lining |
| CN100482861C (en) * | 2006-09-08 | 2009-04-29 | 鞍山科技大学 | Manufacture method of ceramic lining composite square steel tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284242A (en) * | 1988-06-16 | 1990-03-26 | Nippon Steel Corp | Manufacture of complexed material of ceramic and metal |
| JP2694028B2 (en) * | 1989-10-20 | 1997-12-24 | 新日本製鐵株式会社 | Composite pipe and powder injection nozzle |
-
2010
- 2010-08-19 CN CN2010102567761A patent/CN101934555B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3137068B2 (en) * | 1998-03-25 | 2001-02-19 | 日本電気株式会社 | Optical burst signal repeater |
| CN1317235C (en) * | 2005-11-07 | 2007-05-23 | 北京科技大学 | Production process of thin-wall steel pipe with ceramic lining |
| CN1844037A (en) * | 2006-04-30 | 2006-10-11 | 太原理工大学 | Multi-layered composite tube with ceramic lining and preparation method thereof |
| CN100482861C (en) * | 2006-09-08 | 2009-04-29 | 鞍山科技大学 | Manufacture method of ceramic lining composite square steel tube |
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| CN101934555A (en) | 2011-01-05 |
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Application publication date: 20110105 Assignee: Songyuandaduo Oil Field Supporting Industry Co., Ltd. Assignor: Yang Yongli Contract record no.: 2014220000016 Denomination of invention: Method for toughening ceramic layers at end parts of centrifugal self-propagating ceramic lining compound oil pipe Granted publication date: 20120314 License type: Exclusive License Record date: 20140307 |
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