JP6456986B2 - 超高強度・超高靱性油井管およびその製造方法 - Google Patents
超高強度・超高靱性油井管およびその製造方法 Download PDFInfo
- Publication number
- JP6456986B2 JP6456986B2 JP2016575505A JP2016575505A JP6456986B2 JP 6456986 B2 JP6456986 B2 JP 6456986B2 JP 2016575505 A JP2016575505 A JP 2016575505A JP 2016575505 A JP2016575505 A JP 2016575505A JP 6456986 B2 JP6456986 B2 JP 6456986B2
- Authority
- JP
- Japan
- Prior art keywords
- ultra
- oil well
- well pipe
- strength
- high strength
- 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.)
- Active
Links
- 239000003129 oil well Substances 0.000 title claims description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 73
- 239000010959 steel Substances 0.000 claims description 73
- 238000000034 method Methods 0.000 claims description 18
- 238000009749 continuous casting Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 13
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 10
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 8
- 229910052729 chemical element Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- -1 C: 0.12 to 0.18% Inorganic materials 0.000 claims 2
- 241001244373 Carex spissa Species 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 21
- 238000005204 segregation Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 7
- 229910000734 martensite Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000005496 tempering Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000002436 steel type Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
- C21D9/085—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Continuous Casting (AREA)
Description
C:0.12〜0.18%;
Si:0.1〜0.4%;
Mn:1.1〜1.6%;
Cr:0.1〜0.4%;
Mo:0.2〜0.5%;
Nb:0.02〜0.04%;
Ti:0.02〜0.05%;
B:0.0015〜0.005%;
Al:0.01〜0.05%;
Ca:0.0005〜0.005%;
N≦0.008%を含有し、
且つ0<(Ti−3.4N)≦0.02%、Ti/B≧10を満足し、
残部がFeおよび他の不可避不純物である。
同時に、BとNがBN脆性相を形成することによって鋼材の靱性指標が低下してしまうことを回避して、TiとNとが十分に結合することを保証するために、Ti、BおよびNは下式をさらに満足する必要である。
また、本発明の前記超高強度・超高靱性油井管はV元素をさらに含有する。V元素範囲は0<V≦0.1wt%である。
下の工程の通りに、実施例A1−A5と比較例B1−B4の油井管を製造した。
5)サイジング:サイジング温度を850〜900℃にした。
比較例B1中のCとMnとの含有量がより低いため、鋼の焼入性が低くなってしまった。図3が示した通りに、比較例B1の金属組織により多いフェライト組織が存在されているため、熱処理後の油井管の強度が不足であり、0°横向衝撃功も高くない。そうすると、超高強度・超高靱性油井管に加工することに適応できない。
Claims (9)
- 化学元素の質量百分率表示で、C:0.12〜0.18%、Si:0.1〜0.4%、Mn:1.1〜1.6%、Cr:0.1〜0.4%、Mo:0.2〜0.5%、Nb:0.02〜0.04%、Ti:0.02〜0.05%、B:0.0015〜0.005%、Al:0.01〜0.05%、Ca:0.0005〜0.005%、N≦0.008%を含有し、且つ0<(Ti−3.4N)≦0.02%、Ti/B≧10を満足し、残部がFeおよび他の不可避不純物であり、
そのミクロ組織が焼戻ソルバイトであることを特徴とし、
その降伏強度が1034〜1241MPaであり、引張強度が1103MPa以上であり、伸び率が20%〜30%であり、0°横向シャルピー衝撃功が120J以上であり、靱脆遷移温度が−70℃以下であることを特徴とする超高強度・超高靱性油井管。 - 化学元素の質量百分率表示で、C:0.12〜0.18%、Si:0.1〜0.4%、Mn:1.1〜1.6%、Cr:0.1〜0.4%、Mo:0.2〜0.5%、Nb:0.02〜0.04%、Ti:0.02〜0.05%、B:0.0015〜0.005%、Al:0.01〜0.05%、Ca:0.0005〜0.005%、N≦0.008%を含有し、且つ0<(Ti−3.4N)≦0.02%、Ti/B≧10を満足し、残部がFeおよび他の不可避不純物であり、
そのミクロ組織が焼戻ソルバイトであることを特徴とし、
その降伏強度が1069〜1276MPaであり、引張強度が1138MPa以上であり、その伸び率が20%〜25%であり、0°横向シャルピー衝撃功が120J以上であり、靱脆遷移温度が−60℃以下であることを特徴とする超高強度・超高靱性油井管。 - V元素を、0<V≦0.1wt%でさらに含有することを特徴とする請求項1または2に記載の超高強度・超高靱性油井管。
- 精錬工程、連続鋳造工程、穿孔工程、圧延工程、サイジング工程、熱処理工程を含むことを特徴とする請求項1〜3のいずれかに記載の超高強度・超高靱性油井管の製造方法。
- 前記連続鋳造工程において、溶鋼の過熱度を30℃の未満にし、連続鋳造の引き上げ速度を1.8〜2.2m/minにすることを特徴とする請求項4に記載の超高強度・超高靱性油井管の製造方法。
- 前記穿孔工程において、連続鋳造工程で得られた丸ビレットを1200〜1240℃の炉内で均一的に加熱して、穿孔温度を1180〜1240℃にすることを特徴とする請求項4に記載の超高強度・超高靱性油井管の製造方法。
- 前記圧延工程において、最終圧延温度を900〜950℃にすることを特徴とする請求項4に記載の超高強度・超高靱性油井管の製造方法。
- 前記サイジング工程において、サイジング温度が850〜900℃であることを特徴とする請求項4に記載の超高強度・超高靱性油井管の製造方法。
- 前記熱処理工程において、オーステナイト化温度を900〜930℃にして、30〜60min保温後に焼入れして、450〜550℃で焼戻して、保温時間を50〜80minにして、最後に400〜550℃で熱サイジングを行うことを特徴とする請求項4に記載の超高強度・超高靱性油井管の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410307023.7 | 2014-06-30 | ||
CN201410307023.7A CN104046910B (zh) | 2014-06-30 | 一种超高强度超高韧性石油套管及其制造方法 | |
PCT/CN2015/070978 WO2016000444A1 (zh) | 2014-06-30 | 2015-01-19 | 一种超高强度超高韧性石油套管及其制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017525844A JP2017525844A (ja) | 2017-09-07 |
JP6456986B2 true JP6456986B2 (ja) | 2019-01-23 |
Family
ID=51500300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016575505A Active JP6456986B2 (ja) | 2014-06-30 | 2015-01-19 | 超高強度・超高靱性油井管およびその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170159157A1 (ja) |
JP (1) | JP6456986B2 (ja) |
DE (1) | DE112015003075T5 (ja) |
WO (1) | WO2016000444A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109136786B (zh) * | 2018-10-31 | 2019-11-22 | 达力普石油专用管有限公司 | 非调质n80钢级石油套管及其制备方法 |
CN113637892B (zh) | 2020-05-11 | 2022-12-16 | 宝山钢铁股份有限公司 | 一种高强度抗挤毁石油套管及其制造方法 |
CN112176241B (zh) * | 2020-09-23 | 2021-11-16 | 达力普石油专用管有限公司 | 一种低合金耐腐蚀油套管材料及其制备方法 |
CN117758157A (zh) * | 2024-01-31 | 2024-03-26 | 延安嘉盛石油机械有限责任公司 | 一种油套管及其制备方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6210241A (ja) * | 1985-07-08 | 1987-01-19 | Sumitomo Metal Ind Ltd | 耐食性と圧潰強度の優れた継目無油井管用鋼 |
JP3249210B2 (ja) * | 1992-12-22 | 2002-01-21 | 新日本製鐵株式会社 | 耐ssc性の優れた低硬度高靭性シームレス鋼管の製造法 |
JPH07331381A (ja) * | 1994-06-06 | 1995-12-19 | Nippon Steel Corp | 高強度高靭性継目無鋼管およびその製造法 |
JPH0920961A (ja) * | 1995-07-04 | 1997-01-21 | Nippon Steel Corp | 低温用シームレス鋼管の製造法 |
JP2000063940A (ja) * | 1998-08-12 | 2000-02-29 | Sumitomo Metal Ind Ltd | 耐硫化物応力割れ性に優れた高強度鋼の製造方法 |
JP3543708B2 (ja) * | 1999-12-15 | 2004-07-21 | 住友金属工業株式会社 | 耐硫化物応力腐食割れ性に優れた油井用鋼材およびそれを用いた油井用鋼管の製造方法 |
CN101413088B (zh) * | 2008-12-02 | 2011-03-23 | 天津商业大学 | 耐硫化氢应力腐蚀的石油套管及其制造方法 |
CN101845586A (zh) * | 2009-03-25 | 2010-09-29 | 宝山钢铁股份有限公司 | 一种石油套管用钢、电阻焊石油套管及其制造方法 |
CN101864542B (zh) * | 2009-04-16 | 2011-09-28 | 上海梅山钢铁股份有限公司 | 高频电阻直缝焊油井管用钢及其制造方法 |
CN101586450A (zh) * | 2009-04-29 | 2009-11-25 | 天津钢管集团股份有限公司 | 具有高强度和高韧性石油套管及其制造方法 |
CN101629476B (zh) * | 2009-08-05 | 2012-05-23 | 天津钢管集团股份有限公司 | 耐-40~-80℃低温的高强高韧性石油套管 |
WO2013007729A1 (en) * | 2011-07-10 | 2013-01-17 | Tata Steel Ijmuiden Bv | Hot-rolled high-strength steel strip with improved haz-softening resistance and method of producing said steel |
CN102747272B (zh) * | 2012-08-01 | 2014-08-27 | 攀枝花贝氏体耐磨管道有限公司 | 一种b-p-t钢管及制备方法 |
US9803256B2 (en) * | 2013-03-14 | 2017-10-31 | Tenaris Coiled Tubes, Llc | High performance material for coiled tubing applications and the method of producing the same |
-
2015
- 2015-01-19 DE DE112015003075.1T patent/DE112015003075T5/de active Pending
- 2015-01-19 US US15/322,683 patent/US20170159157A1/en not_active Abandoned
- 2015-01-19 WO PCT/CN2015/070978 patent/WO2016000444A1/zh active Application Filing
- 2015-01-19 JP JP2016575505A patent/JP6456986B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20170159157A1 (en) | 2017-06-08 |
DE112015003075T5 (de) | 2017-03-23 |
JP2017525844A (ja) | 2017-09-07 |
WO2016000444A1 (zh) | 2016-01-07 |
CN104046910A (zh) | 2014-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6670858B2 (ja) | 超高強度超高靱性ケーシング鋼、オイルケーシング及びその製造方法 | |
KR102263332B1 (ko) | 고경도 열간압연된 강 제품 및 이를 제조하는 방법 | |
WO2019128286A1 (zh) | 一种耐磨钢低成本短生产周期制备方法 | |
CN105441801B (zh) | 一种超高强度超高韧性石油套管及其tmcp制造方法 | |
CN103882330A (zh) | 一种低屈强比超高强度非调质钢板及其生产方法 | |
JP6456986B2 (ja) | 超高強度・超高靱性油井管およびその製造方法 | |
CN102747290A (zh) | 一种经济型耐磨钢管及其制造方法 | |
JP6152375B2 (ja) | 低温靭性及び硫化水素応力腐食割れ抵抗性に優れた圧力容器用鋼材、その製造方法及び深絞り製品の製造方法 | |
CN108624810B (zh) | 一种低成本高强度高抗硫油井管及其制造方法 | |
CA3032502C (en) | Sucker rod steel and manufacturing method thereof | |
CN112708730B (zh) | 一种超高抗挤毁石油套管及其制造方法 | |
CN111607744B (zh) | 一种厚壁高强高韧石油套管及其制造方法 | |
US11519049B2 (en) | Low temperature resistant oil casing having high strength and high toughness, and manufacturing method thereof | |
CN110616365B (zh) | 一种高强度膨胀套管及其制造方法 | |
US11459643B2 (en) | High-strength and high-toughness perforating gun tube and manufacturing method therefor | |
JP7458685B2 (ja) | 高強度の抗崩壊オイルケーシングおよびその製造方法 | |
CN114134387B (zh) | 一种抗拉强度1300MPa级厚规格超高强钢板及其制造方法 | |
CN104372251B (zh) | 一种屈服强度≥500MPa的耐热钢筋及生产方法 | |
JP6303866B2 (ja) | 高強度鋼材およびその製造方法 | |
RU2617070C1 (ru) | Высокопрочная низколегированная конструкционная сталь | |
KR101586883B1 (ko) | 고강도 강판 및 그 제조방법 | |
CN115198186A (zh) | 一种深井用高强度电阻焊石油套管及其制造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20170704 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20180723 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20180731 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20181026 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20181127 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20181219 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6456986 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |