Double-walled well casing structure

Details Double-walled well casing structure Double-walled well casing structure

1977-12-13

1978-12-19

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Insulated

138149, 285336, F16L 5914

Patent

active

041303016

ABSTRACT:
A double-walled well casing for use in containing a fluid which is hotter than the ambient. The cavity between the double walls may contain insulation. Seals which maintain the inner and outer pipes in concentric relationship are designed to relieve the axial compressive stress on the inner pipe (resulting from thermal expansion relative to the outer pipe) by being stressed beyond their yield points.

REFERENCES:
patent: 2419278 (1947-04-01), Motsenbocker
patent: 2451146 (1948-10-01), Baker et al.
patent: 2860311 (1958-11-01), Balian
patent: 3275345 (1966-09-01), Waldron et al.
"Double-Walled, Insulated Casing will Protect Permafrost"; Oil & Gas Journal; Jul. 26, 1971.

Affiliated with

Also associated with

Rating

Double-walled well casing structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double-walled well casing structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-walled well casing structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2371236