Oil well steel pipe for embedding-expanding

Details Oil well steel pipe for embedding-expanding Oil well steel pipe for embedding-expanding

2006-08-01

2006-08-01

Tsay, Frank S. (Department: 3672)

Wells

Expansible anchor or casing

Expansible casing

C148S320000

Reexamination Certificate

active

07082992

ABSTRACT:
An oil well steel pipe for embedding-expanding excellent in the SSC resistance after expanding. The pipe is made of a steel consisting of, by mass %, C: 0.05 to 0.45%, Si: 0.1 to 1.5%, Mn: 0.1 to 3.0%, P: 0.03% or less, S: 0.01% or less, sol.Al: 0.05% or less, and the balance being Fe and impurities, with a soluble N content of 40 ppm or less. The steel can comprise one or more selected from V, Ti, Nb, B, Cr, Mo, Ni, Cu and Ca.

REFERENCES:
patent: RE31251 (1983-05-01), Nakasugi et al.
patent: 5837956 (1998-11-01), Okabe et al.
patent: 6632296 (2003-10-01), Yoshinaga et al.
patent: 6749954 (2004-06-01), Toyooka et al.
patent: 6948649 (2005-09-01), Takahashi et al.
patent: 7-507610 (1995-08-01), None
patent: 10-17982 (1998-01-01), None
patent: 2000-199029 (2000-07-01), None
patent: 2002-266055 (2002-09-01), None

Affiliated with

Also associated with

Rating

Oil well steel pipe for embedding-expanding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil well steel pipe for embedding-expanding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil well steel pipe for embedding-expanding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3708654