Sealing arrangements for subsea pipe-in-pipe systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 2019
Grant Date -
Jan 25, 2018
app pub date -
Feb 2, 2016
filing date -
Feb 3, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of sealing an annulus of an electrically trace-heated pipe-in-pipe structure including introducing a flowable filler material to mold a sealing mass in situ is disclosed. The sealing mass closes a restriction at which the annulus is narrowed radially and embeds at least one heating element that extends generally longitudinally through the restriction. The structure includes an inner ring spaced within an outer ring to define the annulus between the rings. The annulus is narrowed radially by one or more projections that extend radially into the annulus from at least one of the rings toward the other of said rings. The restriction may include multiple bores, each of which may contain a sealing mass around a respective heating element in the bore.
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