Casing hanger
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 7, 1987
Grant Date -
N/A
app pub date -
Oct 21, 1985
filing date -
Oct 21, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved casing hanger for suspending a pipe string from a casing head at a well head employs a plurality of slip members having a series of teeth which are adapted for frictionally engaging the wedging surface of a slip bowl. The teeth have a profile which gradually tapers in accordance with the distance from a central portion of the slip member. The slip member is deformable from a first configuration wherein the edges of one surface of the slip member engage the pipe string while the central portion of the surface is spaced from the pipe string and the opposite surface of the slip member has a central portion which engages the slip bowl with the ends of the outer surface being spaced therefrom to a loaded configuration wherein the surfaces of the slip member engage the pipe string and the slip bowl along a series of substantially continuous arcuate paths. A deformable wall structure is also disposed adjacent the sealing element so that in the event that the compressive force exerted by the seal element exceeds a pre-established threshold value. The wall deforms to relieve the compressive force exerted by the sealing element.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully