BR112017009762A2 - aço de baixa liga para tubo de poço de óleo e método de fabricação de tubo de poço de óleo de aço de baixa liga - Google Patents

aço de baixa liga para tubo de poço de óleo e método de fabricação de tubo de poço de óleo de aço de baixa liga

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Publication number
BR112017009762A2
BR112017009762A2 BR112017009762-1A BR112017009762A BR112017009762A2 BR 112017009762 A2 BR112017009762 A2 BR 112017009762A2 BR 112017009762 A BR112017009762 A BR 112017009762A BR 112017009762 A2 BR112017009762 A2 BR 112017009762A2
Authority
BR
Brazil
Prior art keywords
oil well
alloy steel
well pipe
low alloy
low
Prior art date
Application number
BR112017009762-1A
Other languages
English (en)
Other versions
BR112017009762B1 (pt
Inventor
Kondo Keiichi
Arari Yuji
Sato Takanori
Original Assignee
Nippon Steel & Sumitomo Metal Corporation
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Nippon Steel & Sumitomo Metal Corporation filed Critical Nippon Steel & Sumitomo Metal Corporation
Publication of BR112017009762A2 publication Critical patent/BR112017009762A2/pt
Publication of BR112017009762B1 publication Critical patent/BR112017009762B1/pt

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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/001Austenite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

trata-se de um aço de baixa liga para tubo de poço de óleo em que altas forças e resistências à ssc satisfatórias podem ser alcançadas de maneira estável. um aço de baixa liga para tubo de poço de óleo tem uma composição química que inclui, por porcentagem em massa, c: mais do que 0,45 e até 0,65%; si: 0,05 a 0,50%, mn: 0,10 a 1,00%; p: até 0,020%; s: até 0,0020%; cu: até 0,1%; cr: 0,40 a 1,50%; ni: até 0,1%; mo: 0,50 a 2,50%; ti: até 0,01%; v: 0,05 a 0,25%; nb: 0,005 a 0,20%; al: 0,010 a 0,100%; b: até 0,0005%; ca: 0 a 0,003%; o: até 0,01%; n: até 0,007%; e outros elementos, sendo que o aço tem uma microestrutura que consiste em martensita temperada e austenita retida em menos do que 2% em fração de volume, sendo que o número de tamanho de grão de cristal é 9,0 ou maior, a densidade de número de inclusões à base de carbonitreto com um diâmetro de grão de 50 µm ou maior é 10 inclusões/100 mm2 ou menor, e o limite de elasticidade é 965 mpa ou maior.
BR112017009762-1A 2014-12-12 2015-12-04 Tubo de poço de óleo de aço de baixa liga e método de fabricação de tubo de poço de óleo de aço de baixa liga BR112017009762B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014-251565 2014-12-12
JP2014251565 2014-12-12
PCT/JP2015/084104 WO2016093161A1 (ja) 2014-12-12 2015-12-04 油井管用低合金鋼及び低合金鋼油井管の製造方法

Publications (2)

Publication Number Publication Date
BR112017009762A2 true BR112017009762A2 (pt) 2018-02-20
BR112017009762B1 BR112017009762B1 (pt) 2021-09-08

Family

ID=56107347

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017009762-1A BR112017009762B1 (pt) 2014-12-12 2015-12-04 Tubo de poço de óleo de aço de baixa liga e método de fabricação de tubo de poço de óleo de aço de baixa liga

Country Status (11)

Country Link
US (1) US11060160B2 (pt)
EP (1) EP3231884B1 (pt)
JP (1) JP6160785B2 (pt)
CN (1) CN107002201B (pt)
AR (1) AR102961A1 (pt)
AU (1) AU2015361346B2 (pt)
BR (1) BR112017009762B1 (pt)
CA (1) CA2970271C (pt)
MX (1) MX2017007583A (pt)
RU (1) RU2673262C1 (pt)
WO (1) WO2016093161A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR101200A1 (es) * 2014-07-25 2016-11-30 Nippon Steel & Sumitomo Metal Corp Tubo de acero de baja aleación para pozo de petróleo
CN106555042A (zh) * 2015-09-24 2017-04-05 宝山钢铁股份有限公司 一种有效细化晶粒的无缝钢管在线控制冷却工艺及制造方法
JP6680142B2 (ja) * 2016-08-22 2020-04-15 日本製鉄株式会社 高強度継目無油井管およびその製造方法
JP6798559B2 (ja) 2016-10-06 2020-12-09 日本製鉄株式会社 鋼材、油井用鋼管、及び、鋼材の製造方法
MX2019003100A (es) 2016-10-17 2019-06-10 Jfe Steel Corp Tubo de acero sin soldadura de alta resistencia para tubos para la industria del petroleo, y metodo para producir el mismo.
JP6801376B2 (ja) * 2016-11-01 2020-12-16 日本製鉄株式会社 高強度低合金油井用継目無鋼管及びその製造方法
CN110234779A (zh) * 2017-01-24 2019-09-13 日本制铁株式会社 钢材和钢材的制造方法
CN107829040A (zh) * 2017-10-24 2018-03-23 潍坊友容实业有限公司 高强度抗盐碱金属管材及其制备方法
JP6947012B2 (ja) * 2017-12-25 2021-10-13 日本製鉄株式会社 鋼材、油井用鋼管、及び、鋼材の製造方法
AR114708A1 (es) * 2018-03-26 2020-10-07 Nippon Steel & Sumitomo Metal Corp Material de acero adecuado para uso en entorno agrio
AR115003A1 (es) * 2018-04-05 2020-11-18 Nippon Steel & Sumitomo Metal Corp Material de acero adecuado para uso en entorno agrio
WO2019198460A1 (ja) * 2018-04-09 2019-10-17 日本製鉄株式会社 鋼管、及び、鋼管の製造方法
JP2021522416A (ja) * 2018-04-27 2021-08-30 ヴァルレック オイル アンド ガス フランス 硫化物応力割れ耐性を有する鋼、そのような鋼から形成された管状製品、そのような管状製品の製造プロセス、およびその使用
JP7256371B2 (ja) * 2019-03-14 2023-04-12 日本製鉄株式会社 鋼材の製造方法、及び、焼戻し設備
WO2021009543A1 (en) * 2019-07-16 2021-01-21 Arcelormittal Method for producing a steel part and steel part
CN114395696B (zh) * 2022-02-28 2024-05-24 衡阳华菱钢管有限公司 一种油井管用钢、其制备方法和油井管

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333700A (en) 1976-09-10 1978-03-29 Laurel Bank Machine Co Device for indicating kinds of packaged coins
JPS5522322A (en) 1978-08-04 1980-02-18 Sumitomo Cement Co Ltd Method of heating powder material and device therefor
JPS6086216A (ja) * 1983-10-19 1985-05-15 Kawasaki Steel Corp 耐硫化物応力腐食割れ性を改善した電気抵抗溶接鋼管用鋼の製造方法
JPS6254021A (ja) 1985-05-23 1987-03-09 Kawasaki Steel Corp 耐硫化物応力腐食割れ性に優れる高強度継目無鋼管の製造方法
JPS63203748A (ja) 1987-02-19 1988-08-23 Kawasaki Steel Corp 耐硫化物応力腐食割れ性に優れた高強度鋼
JPH01259125A (ja) * 1988-04-11 1989-10-16 Sumitomo Metal Ind Ltd 耐食性に優れた高強度油井管の製造方法
JPH01283322A (ja) * 1988-05-10 1989-11-14 Sumitomo Metal Ind Ltd 耐食性に優れた高強度油井管の製造方法
DK0828007T3 (da) * 1995-05-15 2002-02-25 Sumitomo Metal Ind Fremgangsmåde til fremstilling af sømløst stålrør med høj styrke og fremragende sulfidspændingsrevnebestandighed
JPH09249935A (ja) * 1996-03-13 1997-09-22 Sumitomo Metal Ind Ltd 耐硫化物応力割れ性に優れる高強度鋼材とその製造方法
JP3864921B2 (ja) 2002-03-29 2007-01-10 住友金属工業株式会社 低合金鋼
CA2477420C (en) * 2002-03-29 2007-09-25 Sumitomo Metal Industries, Ltd. Low alloy steel
JP4008391B2 (ja) * 2003-07-11 2007-11-14 株式会社神戸製鋼所 耐水素脆化特性に優れた高強度鋼およびその製造方法
JP4135691B2 (ja) * 2004-07-20 2008-08-20 住友金属工業株式会社 窒化物系介在物形態制御鋼
JP4609138B2 (ja) * 2005-03-24 2011-01-12 住友金属工業株式会社 耐硫化物応力割れ性に優れた油井管用鋼および油井用継目無鋼管の製造方法
JP4792778B2 (ja) 2005-03-29 2011-10-12 住友金属工業株式会社 ラインパイプ用厚肉継目無鋼管の製造方法
JP4725437B2 (ja) * 2006-06-30 2011-07-13 住友金属工業株式会社 厚鋼板用連続鋳造鋳片及びその製造方法並びに厚鋼板
EA012501B1 (ru) * 2007-03-30 2009-10-30 Сумитомо Метал Индастриз, Лтд. Низколегированная сталь для нефтегазопромысловых труб и бесшовная стальная труба
FR2942808B1 (fr) * 2009-03-03 2011-02-18 Vallourec Mannesmann Oil & Gas Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures.
JP5728836B2 (ja) * 2009-06-24 2015-06-03 Jfeスチール株式会社 耐硫化物応力割れ性に優れた油井用高強度継目無鋼管の製造方法
FR2960883B1 (fr) 2010-06-04 2012-07-13 Vallourec Mannesmann Oil & Gas Acier faiblement allie a limite d'elasticite elevee et haute resistance a la fissuration sous contrainte par les sulfures
JP2013129879A (ja) 2011-12-22 2013-07-04 Jfe Steel Corp 耐硫化物応力割れ性に優れた油井用高強度継目無鋼管およびその製造方法
ES2755750T3 (es) * 2012-03-07 2020-04-23 Nippon Steel Corp Método para producir tubería de acero sin juntas que tiene elevada resistencia y excelente resistencia a la fisuración por tensión de sulfuro
US10407758B2 (en) * 2012-06-20 2019-09-10 Nippon Steel Corporation Steel for oil country tubular goods and method of producing the same
ES2690085T3 (es) * 2012-11-05 2018-11-19 Nippon Steel & Sumitomo Metal Corporation Acero de baja aleación para productos tubulares para pozos de petróleo con excelente resistencia al agrietamiento bajo tensión por sulfuro, y método de fabricación del mismo
JP5958450B2 (ja) * 2012-11-27 2016-08-02 Jfeスチール株式会社 耐硫化物応力腐食割れ性に優れた油井用低合金高強度継目無鋼管およびその製造方法
AR096965A1 (es) * 2013-07-26 2016-02-10 Nippon Steel & Sumitomo Metal Corp Tubo de acero de baja aleación para pozo petrolero y método para la manufactura del mismo
AR101200A1 (es) 2014-07-25 2016-11-30 Nippon Steel & Sumitomo Metal Corp Tubo de acero de baja aleación para pozo de petróleo
EP3222740B1 (en) * 2014-11-18 2020-03-11 JFE Steel Corporation High-strength seamless steel pipe for oil wells and method for producing same

Also Published As

Publication number Publication date
AR102961A1 (es) 2017-04-05
EP3231884B1 (en) 2021-08-18
US20170362674A1 (en) 2017-12-21
AU2015361346A1 (en) 2017-06-29
AU2015361346B2 (en) 2019-02-28
EP3231884A1 (en) 2017-10-18
US11060160B2 (en) 2021-07-13
WO2016093161A1 (ja) 2016-06-16
CA2970271A1 (en) 2016-06-16
MX2017007583A (es) 2017-09-07
BR112017009762B1 (pt) 2021-09-08
RU2673262C1 (ru) 2018-11-23
JPWO2016093161A1 (ja) 2017-04-27
CN107002201A (zh) 2017-08-01
JP6160785B2 (ja) 2017-07-12
EP3231884A4 (en) 2018-06-06
CA2970271C (en) 2020-02-18
CN107002201B (zh) 2019-06-11

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