EP 3450585 A1 20190306 - OIL WELL PIPE FOR EXPANDABLE TUBULAR
Title (en)
OIL WELL PIPE FOR EXPANDABLE TUBULAR
Title (de)
ÖLBOHRLOCHROHR FÜR EXPANDIERBARES ROHR
Title (fr)
TUYAU DE PUITS DE PÉTROLE POUR MATÉRIEL TUBULAIRE EXTENSIBLE
Publication
Application
Priority
JP 2016075364 W 20160830
Abstract (en)
An oil well pipe for expandable tubular, containing, in terms of % by mass: 0.020 to 0.080% of C, 0.50% or less of Si, 0.30 to 1.60% of Mn, 0.030% or less of P, 0.010% or less of S, 0.005 to 0.050% of Ti, and 0.010 to 0.500% of Al, and the balance being Fe and impurities, wherein, in a metallographic microstructure, an area fraction of a first phase composed of ferrite is from 90.0% to 98.0% and an area fraction of a second phase composed of one or more selected from the group consisting of tempered martensite, tempered bainite, and pearlite is from 2.0% to 10.0%.
IPC 8 full level
C22C 38/00 (2006.01); C21D 9/08 (2006.01); C22C 38/14 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 1/18 (2013.01 - EP); C21D 8/105 (2013.01 - US); C21D 9/08 (2013.01 - EP KR); C21D 9/085 (2013.01 - EP US); C22C 38/00 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/08 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP KR US); C22C 38/16 (2013.01 - EP US); C22C 38/20 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/44 (2013.01 - EP); C22C 38/46 (2013.01 - EP); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP); C22C 38/58 (2013.01 - US); C21D 9/08 (2013.01 - US); C21D 2211/002 (2013.01 - US); C21D 2211/005 (2013.01 - KR US); C21D 2211/008 (2013.01 - US); C21D 2211/009 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3450585 A1 20190306; EP 3450585 A4 20200318; CN 109072370 A 20181221; JP WO2018042522 A1 20190328; KR 20190003649 A 20190109; US 2019292637 A1 20190926; WO 2018042522 A1 20180308
DOCDB simple family (application)
EP 16915083 A 20160830; CN 201680085417 A 20160830; JP 2016075364 W 20160830; JP 2018536562 A 20160830; KR 20187034432 A 20160830; US 201616302244 A 20160830