Method and an apparatus for retrieving a tubing from a well
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 11, 2017
Issued Date -
N/A
app pub date -
Jan 29, 2013
filing date -
Jan 30, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This invention relates to a method and apparatus for retrieving a tubing from a well at least partly filled with a liquid. The tubing has first and second end portions. Method steps include: (a) running a retrieval apparatus using connecting means from a surface into the well, retrieval apparatus including: means for engaging tubing; means for sealing a portion of the bore of tubing; means for injecting a low density fluid into tubing, (b) connecting engagement means to a portion of tubing; (c) activating sealing means to close liquid communication in the bore of tubing between first and second end portions; (d) replacing at least a portion of a volume of liquid defined by sealing means, tubing and second end portion (B-B′) of the tubing by a low density fluid introduced in volume by injection means; and (e) retrieving tubing out of the well using connecting means.
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