CN112662950A - Oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide and production process thereof - Google Patents
Oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide and production process thereof Download PDFInfo
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- CN112662950A CN112662950A CN202011484024.0A CN202011484024A CN112662950A CN 112662950 A CN112662950 A CN 112662950A CN 202011484024 A CN202011484024 A CN 202011484024A CN 112662950 A CN112662950 A CN 112662950A
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Abstract
The invention belongs to the technical field of steel production, and particularly relates to an oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide, which comprises the following components in percentage by weight: 0.25-0.27% of C, 0.25-0.35% of Si, 0.7-0.8% of Mn, 0.9-1.0% of Cr, 0.15-0.25% of Mo, less than or equal to 0.003% of S, less than or equal to 0.01% of P, less than or equal to 0.2% of Ni, less than or equal to 0.2% of Cu, and the balance of Fe and impurities. The product has the characteristics of stronger stability and longer service cycle; the yield strength is 552-655 MPa, the tensile strength is more than or equal to 655MPa, the minimum elongation after fracture is more than or equal to 14 percent, the grain size is more than or equal to 7 grade, and the hardness is less than or equal to 241 HBW. The strength, toughness and impact energy of the seamless steel tube are obviously improved through a smelting process, a seamless tube rolling process and a quenching and tempering heat treatment process, so that the product has the capability of resisting the corrosion of carbon dioxide and hydrogen sulfide.
Description
The technical field is as follows:
the invention belongs to the technical field of steel production, and particularly relates to an oil casing pipe resistant to carbon dioxide and hydrogen sulfide corrosion and a production process thereof.
Background art:
with the continuous development and progress of modern oil exploitation technology, the corrosion prevention requirement of the petroleum casing pipe on the market is higher and higher, in order to adapt to the continuously developing market demand, the production method and components of the petroleum casing pipe are continuously improved, the comprehensive performance of the product is greatly improved through quenching and tempering processes, and the purpose of resisting the corrosion of carbon dioxide and hydrogen sulfide can be achieved. Therefore, it is very necessary to design an oil casing capable of resisting carbon dioxide and hydrogen sulfide corrosion.
The invention content is as follows:
the invention aims to provide an oil casing pipe capable of resisting carbon dioxide and hydrogen sulfide corrosion. The stability of the product is improved, and the corrosion resistance requirement of the oil well pipe is met.
The technical scheme adopted by the invention is as follows: the carbon dioxide and hydrogen sulfide corrosion resistant oil casing comprises the following components in percentage by weight: 0.25-0.27% of C, 0.25-0.35% of Si, 0.7-0.8% of Mn, 0.9-1.0% of Cr, 0.15-0.25% of Mo, less than or equal to 0.003% of S, less than or equal to 0.01% of P, less than or equal to 0.2% of Ni, less than or equal to 0.2% of Cu, and the balance of Fe and impurities.
Further, the oil bushing comprises the following components in percentage by weight: 0.25% of C, 0.25% of Si, 0.7% of Mn, 0.9% of Cr, 0.15% of Mo, 0.001% of S, 0.004% of P, 0.06% of Ni, 0.06% of Cu, and 97.625% of Fe and impurities.
Further, the oil bushing comprises the following components in percentage by weight: 0.26% of C, 0.3% of Si, 0.75% of Mn, 0.95% of Cr, 0.2% of Mo, 0.002% of S, 0.007% of P, 0.13% of Ni, 0.13% of Cu, 97.271% of Fe and impurities.
Further, the oil bushing comprises the following components in percentage by weight: 0.27% of C, 0.35% of Si, 0.8% of Mn, 1.0% of Cr, 0.25% of Mo, 0.003% of S, 0.01% of P, 0.2% of Ni, 0.2% of Cu, 96.917% of Fe and impurities.
Further, the production process comprises the following steps: smelting, seamless pipe rolling and quenching and tempering heat treatment.
Further, the quenching and tempering heat treatment adopts a quenching and tempering process, and the lowest tempering temperature is 566 ℃.
The invention has the beneficial effects that: provides an oil casing pipe capable of resisting carbon dioxide and hydrogen sulfide corrosion. The stability of the product is improved, and the corrosion resistance requirement of the oil well pipe is met. Narrow control of metal harmful elements is realized on chemical components; the product has the characteristics of stronger stability and longer service cycle; the yield strength is 552-655 MPa, the tensile strength is more than or equal to 655MPa, the minimum elongation after fracture is more than or equal to 14 percent, the grain size is more than or equal to 7 grade, and the hardness is less than or equal to 241 HBW. The strength, toughness and impact energy of the seamless steel tube are obviously improved through a smelting process, a seamless tube rolling process and a quenching and tempering heat treatment process, so that the product has the capability of resisting the corrosion of carbon dioxide and hydrogen sulfide.
The specific implementation mode is as follows:
example one
The carbon dioxide and hydrogen sulfide corrosion resistant oil casing comprises the following components in percentage by weight: 0.25% of C, 0.25% of Si, 0.7% of Mn, 0.9% of Cr, 0.15% of Mo, 0.001% of S, 0.004% of P, 0.06% of Ni, 0.06% of Cu, and 97.625% of Fe and impurities.
Example two
The carbon dioxide and hydrogen sulfide corrosion resistant oil casing comprises the following components in percentage by weight: 0.26% of C, 0.3% of Si, 0.75% of Mn, 0.95% of Cr, 0.2% of Mo, 0.002% of S, 0.007% of P, 0.13% of Ni, 0.13% of Cu, 97.271% of Fe and impurities.
EXAMPLE III
The carbon dioxide and hydrogen sulfide corrosion resistant oil casing comprises the following components in percentage by weight: 0.27% of C, 0.35% of Si, 0.8% of Mn, 1.0% of Cr, 0.25% of Mo, 0.003% of S, 0.01% of P, 0.2% of Ni, 0.2% of Cu, 96.917% of Fe and impurities.
Example four
A production process of an oil casing pipe capable of resisting carbon dioxide and hydrogen sulfide corrosion comprises the following steps: smelting, seamless pipe rolling and quenching and tempering heat treatment; quenching and tempering processes are adopted in the quenching and tempering heat treatment, and the lowest tempering temperature is 566 ℃.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, which are not to be construed as limiting the invention to the specific embodiments described above. Numerous other simplifications or substitutions may be made without departing from the spirit of the invention as defined in the claims and the general concept thereof, which shall be construed to be within the scope of the invention.
Claims (6)
1. The utility model provides an anti carbon dioxide, hydrogen sulfide corrosion oil sleeve which characterized in that: the oil casing comprises the following components in percentage by weight: 0.25-0.27% of C, 0.25-0.35% of Si, 0.7-0.8% of Mn, 0.9-1.0% of Cr, 0.15-0.25% of Mo, less than or equal to 0.003% of S, less than or equal to 0.01% of P, less than or equal to 0.2% of Ni, less than or equal to 0.2% of Cu, and the balance of Fe and impurities.
2. The carbon dioxide, hydrogen sulfide corrosion resistant oil casing according to claim 1, wherein: the oil casing comprises the following components in percentage by weight: 0.25% of C, 0.25% of Si, 0.7% of Mn, 0.9% of Cr, 0.15% of Mo, 0.001% of S, 0.004% of P, 0.06% of Ni, 0.06% of Cu, and 97.625% of Fe and impurities.
3. The carbon dioxide, hydrogen sulfide corrosion resistant oil casing according to claim 1, wherein: the oil casing comprises the following components in percentage by weight: 0.26% of C, 0.3% of Si, 0.75% of Mn, 0.95% of Cr, 0.2% of Mo, 0.002% of S, 0.007% of P, 0.13% of Ni, 0.13% of Cu, 97.271% of Fe and impurities.
4. The carbon dioxide, hydrogen sulfide corrosion resistant oil casing according to claim 1, wherein: the oil casing comprises the following components in percentage by weight: 0.27% of C, 0.35% of Si, 0.8% of Mn, 1.0% of Cr, 0.25% of Mo, 0.003% of S, 0.01% of P, 0.2% of Ni, 0.2% of Cu, 96.917% of Fe and impurities.
5. The production process of the oil casing pipe resistant to carbon dioxide and hydrogen sulfide corrosion, according to claim 1, is characterized in that: the production process comprises the following steps: smelting, seamless pipe rolling and quenching and tempering heat treatment.
6. The production process of the oil casing pipe resistant to carbon dioxide and hydrogen sulfide corrosion according to claim 5, characterized in that: the quenching and tempering heat treatment adopts a quenching and tempering process, and the lowest tempering temperature is 566 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484024.0A CN112662950A (en) | 2020-12-16 | 2020-12-16 | Oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011484024.0A CN112662950A (en) | 2020-12-16 | 2020-12-16 | Oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112662950A true CN112662950A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011484024.0A Pending CN112662950A (en) | 2020-12-16 | 2020-12-16 | Oil casing pipe capable of resisting corrosion of carbon dioxide and hydrogen sulfide and production process thereof |
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| CN (1) | CN112662950A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0221129D0 (en) * | 2002-09-12 | 2002-10-23 | Corus Uk Ltd | Corrosion resistant steels |
| CN1587432A (en) * | 2004-07-05 | 2005-03-02 | 刘岩 | Oil pumping rod steel and proces for producing super high strength oil pumping rod |
| CN101353765A (en) * | 2007-07-23 | 2009-01-28 | 宝山钢铁股份有限公司 | Steel for CT80 grade coiled tubing, and manufacturing method and use thereof |
| CN101440460A (en) * | 2008-12-10 | 2009-05-27 | 山东墨龙石油机械股份有限公司 | Medium and high strength oil casing for resisting sulfurated hydrogen corrosion and manufacturing method thereof |
| CN102140611A (en) * | 2011-03-18 | 2011-08-03 | 上海海隆石油管材研究所 | 135 steel-level drill rod connector and heat treatment process thereof |
| CN102277534A (en) * | 2011-07-29 | 2011-12-14 | 攀钢集团有限公司 | Hot rolled steel section for gas cylinders and production method thereof |
| CN105088078A (en) * | 2014-05-22 | 2015-11-25 | 宁波瑞亚紧固件制造有限公司 | Anchor bolt material and preparation method thereof |
-
2020
- 2020-12-16 CN CN202011484024.0A patent/CN112662950A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0221129D0 (en) * | 2002-09-12 | 2002-10-23 | Corus Uk Ltd | Corrosion resistant steels |
| CN1587432A (en) * | 2004-07-05 | 2005-03-02 | 刘岩 | Oil pumping rod steel and proces for producing super high strength oil pumping rod |
| CN101353765A (en) * | 2007-07-23 | 2009-01-28 | 宝山钢铁股份有限公司 | Steel for CT80 grade coiled tubing, and manufacturing method and use thereof |
| CN101440460A (en) * | 2008-12-10 | 2009-05-27 | 山东墨龙石油机械股份有限公司 | Medium and high strength oil casing for resisting sulfurated hydrogen corrosion and manufacturing method thereof |
| CN102140611A (en) * | 2011-03-18 | 2011-08-03 | 上海海隆石油管材研究所 | 135 steel-level drill rod connector and heat treatment process thereof |
| CN102277534A (en) * | 2011-07-29 | 2011-12-14 | 攀钢集团有限公司 | Hot rolled steel section for gas cylinders and production method thereof |
| CN105088078A (en) * | 2014-05-22 | 2015-11-25 | 宁波瑞亚紧固件制造有限公司 | Anchor bolt material and preparation method thereof |
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Application publication date: 20210416 |
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