EP0183536A3 - Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel - Google Patents

Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel Download PDF

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Publication number
EP0183536A3
EP0183536A3 EP85308615A EP85308615A EP0183536A3 EP 0183536 A3 EP0183536 A3 EP 0183536A3 EP 85308615 A EP85308615 A EP 85308615A EP 85308615 A EP85308615 A EP 85308615A EP 0183536 A3 EP0183536 A3 EP 0183536A3
Authority
EP
European Patent Office
Prior art keywords
drill collar
steel
corrosion resistance
high strength
magnetic steel
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.)
Granted
Application number
EP85308615A
Other versions
EP0183536B1 (en
EP0183536A2 (en
Inventor
Takanori Dainigijutsukenkyusho Nakazawa
Toru Dainigijutsukenkyusho Suzuki
Tetsu Dainigijutsukenkyusho Sakamoto
Isamu Yamauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to AT85308615T priority Critical patent/ATE45991T1/en
Publication of EP0183536A2 publication Critical patent/EP0183536A2/en
Publication of EP0183536A3 publication Critical patent/EP0183536A3/en
Application granted granted Critical
Publication of EP0183536B1 publication Critical patent/EP0183536B1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/16—Drill collars
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

Abstract

A non-magnetic steel alloy having high corrosion resistance and high strength suitable for use as the material of a drill collar which operates under corrosive conditions, particularly under the conditions which cause stress corrosion cracking, and a drill collar made of the steel alloy. The steel alloy has a composition which essentially consists of: not greater than 0.02% of C, not greater than 2.0% of Si, not greater than 2.0% of Mn, 25 to 40% of Ni, 18 to 30% of Cr, 0.1 to 1.5% of A1, 1.5 to 3.0% of Ti, 0.0005 to 0.020% of Ca, not greater than 0.020% of N and the balance Fe and incidental impurities, and a drill collar made of the steel.
EP85308615A 1984-11-30 1985-11-27 Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel Expired EP0183536B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85308615T ATE45991T1 (en) 1984-11-30 1985-11-27 NON-MAGNETIC STEEL WITH HIGH CORROSION RESISTANCE AND HIGH STRENGTH FOR USE IN SAILBAR AND SAILBAR MADE OF THIS MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59251908A JPS61130464A (en) 1984-11-30 1984-11-30 Non-magnetic steel for drill collar having superior corrosion resistance and high strength
JP251908/84 1984-11-30

Publications (3)

Publication Number Publication Date
EP0183536A2 EP0183536A2 (en) 1986-06-04
EP0183536A3 true EP0183536A3 (en) 1987-05-13
EP0183536B1 EP0183536B1 (en) 1989-08-30

Family

ID=17229743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85308615A Expired EP0183536B1 (en) 1984-11-30 1985-11-27 Non-magnetic steel having high corrosion resistance and high strength for use as material of drill collar, and drill collar made of the steel

Country Status (4)

Country Link
EP (1) EP0183536B1 (en)
JP (1) JPS61130464A (en)
AT (1) ATE45991T1 (en)
DE (1) DE3572696D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246092A3 (en) * 1986-05-15 1989-05-03 Exxon Research And Engineering Company Alloys resistant to stress corrosion cracking
DE3907564A1 (en) * 1989-03-09 1990-09-13 Vdm Nickel Tech NICKEL CHROME IRON ALLOY
CN1038353C (en) * 1993-09-11 1998-05-13 中国科学院金属研究所 Steel for high-strength non-magnetic drill collar
JP2963842B2 (en) * 1994-06-15 1999-10-18 大同特殊鋼株式会社 Alloy for exhaust valve
US6012744A (en) * 1998-05-01 2000-01-11 Grant Prideco, Inc. Heavy weight drill pipe
US6372181B1 (en) 2000-08-24 2002-04-16 Inco Alloys International, Inc. Low cost, corrosion and heat resistant alloy for diesel engine valves
US7651575B2 (en) 2006-07-07 2010-01-26 Eaton Corporation Wear resistant high temperature alloy
CN103206175A (en) * 2013-03-15 2013-07-17 山西北方风雷工业集团有限公司 Drill collar with high fatigue resistance
CN103820736A (en) * 2014-01-09 2014-05-28 马鞍山市恒毅机械制造有限公司 Alloy steel material for tap hole drilling bit and preparation method of alloy steel material
CN115011858B (en) * 2022-06-23 2023-03-17 沈阳航空航天大学 High-strength high-plasticity CoCrNiAlTi multi-principal-element alloy and preparation method thereof
CN115466838A (en) * 2022-09-21 2022-12-13 河南中原特钢装备制造有限公司 Cooling method for controlling steel precipitate for non-magnetic drill collar

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803539A (en) * 1954-08-24 1957-08-20 Jessop William & Sons Ltd Fe-cr-ni alloys
DE1261677B (en) * 1959-06-04 1968-02-22 Schoeller Bleckmann Stahlwerke Use of non-magnetizable, austenitic steel alloys for drill collars
US3659882A (en) * 1968-12-02 1972-05-02 Schoeller Bleckman Stahlwerke Nonmagnetic corrosion-resistant drill string members
FR2135963A5 (en) * 1971-04-08 1972-12-22 Ver Deutsche Metallwerke Ag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803539A (en) * 1954-08-24 1957-08-20 Jessop William & Sons Ltd Fe-cr-ni alloys
DE1261677B (en) * 1959-06-04 1968-02-22 Schoeller Bleckmann Stahlwerke Use of non-magnetizable, austenitic steel alloys for drill collars
US3659882A (en) * 1968-12-02 1972-05-02 Schoeller Bleckman Stahlwerke Nonmagnetic corrosion-resistant drill string members
FR2135963A5 (en) * 1971-04-08 1972-12-22 Ver Deutsche Metallwerke Ag

Also Published As

Publication number Publication date
DE3572696D1 (en) 1989-10-05
ATE45991T1 (en) 1989-09-15
EP0183536B1 (en) 1989-08-30
JPH0218381B2 (en) 1990-04-25
JPS61130464A (en) 1986-06-18
EP0183536A2 (en) 1986-06-04

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