Linear coiled tubing injector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 25, 2001
Grant Date -
N/A
app pub date -
May 12, 2000
filing date -
Feb 3, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An injector is provided for injecting and withdrawing large diameter coiled tubing comprising a linear section of gripping blocks driven on an endless chain conveyor. The coiled tubing is forced into frictional engagement with the blocks by a corresponding linear array of rollers. The arrangement is gentle on the coiled tubing. The injector is not restricted in length and thus provides a linear driving section of configurable length for providing superior injection and pulling capacities. In combination with the strong draw works, the mast and rotary table of a conventional rig enables making up both sectional tubing for assembling BHA's, drilling surface hole and making up to non-rotating coiled tubing from the injector. Using a mast having two open sides and with dual draw works, increased functionality is provided and less serial handling.
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