Apparatus and method for hanging coiled tubing in wells
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United States of America Patent
Stats
-
Nov 21, 1995
Grant Date -
N/A
app pub date -
Oct 31, 1994
filing date -
Oct 5, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dognut for use in the installation of a string of coiled tubing in an oil or gas well features a construction and assembly which enables the dognut to be installed on the tubing, the dognut and tubing to be landed in place in the tubing spool, the dognut seal to be activated and the assembly of the dognut, dognut seal, tubing and tubing spool to be pressure tested for leakage prior to cutting the coiled tubing above the dognut and putting the wellhead under pressure from the producing formation. This dognut installation adds to the safety and ease of completing the coiled tubing installation in oil or gas wells.
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