Coiled tubing injector head

Wells – Above ground apparatus – Moving tubing or cable into an existing well

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07857042

ABSTRACT:
An improved coiled tubing injector head, comprising a plurality of powered chain loops, each having one practically straight side adjacent to the other chain loop(s) and biased against a tubing running in-between all the loops so as to grip the tubing and allow its transit into and out of a well. The chain loops are assembled from multifunctional links which both transmit drive and also form carriers for replaceable gripper blocks or are the carriers and gripper blocks combined, without need of a roller link chain or chains in addition to the multifunctional links. Three or more chain loops are provided, and the chain loops are driven by electric motors.

REFERENCES:
patent: 2892535 (1959-06-01), Cullen et al.
patent: 4142596 (1979-03-01), Dressel et al.
patent: 4585061 (1986-04-01), Lyons, Jr. et al.
patent: 5094340 (1992-03-01), Avakov
patent: 5188174 (1993-02-01), Anderson, Jr. et al.
patent: 5309990 (1994-05-01), Lance
patent: 5853118 (1998-12-01), Avakov
patent: 6059029 (2000-05-01), Goode
patent: 6173769 (2001-01-01), Goode
patent: 6189609 (2001-02-01), Shaaban et al.
patent: 6332501 (2001-12-01), Gipson
patent: 6439445 (2002-08-01), De Groot et al.
patent: 6892810 (2005-05-01), Austbo et al.
patent: 2004/0094306 (2004-05-01), Goode et al.
patent: 2004/0188100 (2004-09-01), Austbo et al.
patent: 2005/0224224 (2005-10-01), Martin et al.
patent: 0486324 (1992-05-01), None
patent: 0486324 (1992-05-01), None
International Search Report dated Jul. 25, 2006 for International application No. PCT/GB2006/001200.
PCT International Preliminary Report on Patentability and Written Opinion issued Oct. 3, 2007 for International application No. PCT/GB2006/001200.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coiled tubing injector head does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coiled tubing injector head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coiled tubing injector head will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4206019

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.