Apparatus for inserting and withdrawing coiled tubing with respect to a well

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO

4585061

SERIAL NO

06543091

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Apparatus for injecting tubing into a subterranean well comprising a support frame for a pair of opposed endless conveyor chains fitted with tubing gripper blocks for gripping and conveying the tubing into and out of the well. The conveyor chains are supported by movable ramp members which are each connected to opposed hydraulic cylinder actuators hydraulically interconnected in parallel so that the ramp members may be moved toward and away from each other to uniformly vary the gripping force of the conveyor chains on the tubing. The endless conveyor chains are trained over idler sprockets which are interconnected by opposed hydraulic cylinder actuators for tensioning the chains with substantially equal tensioning forces. The conveyor assembly is mounted on a frame comprising two spaced apart metal plates which are reinforced by spaced apart vertical column members supported on a base. A guide mechanism for the tubing approaching the apparatus from a supply reel is provided with a series of spaced apart guide roller assemblies which are adapted to guide the tubing in both horizontal and vertical planes. The guide mechanism includes a support boom which is connected to the frame for swivelling movement to align the support boom with the injection tubing as it is paid out or back onto a supply reel. The conveyor chains are driven by sprockets connected to hydraulic motors connected in parallel.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HYDRA RIG, INC.FORT WORTH, TX0
HYDRA-RIG, A CORP OF TXFORT WORTH, TX0
LOYOLA UNIVERSITY OF CHICAGO, AN IL NOT FOR-FOR-PROFIT CORPORATIONCHICAGO, IL0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lyons, Jr Robert A Carrollton, TX 2 83
Maschek, Jr Johnnie B Fort Worth, TX 1 76

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NABORS CANADA (1)
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Other [Check patent profile for assignment information] (8)
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* 5836385 Apparatus for deploying wireline 3 1997
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8491430 Roller chain assembly 0 2010
 
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Superior Services, LLC (1)
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NATIONAL OILWELL VARCO, L.P. (6)
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* 2013/0175,048 BOOM MOUNTED COILED TUBING GUIDE AND METHOD FOR RUNNING COILED TUBING 2 2013
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9151122 Coiled tubing injector with limited slip chains 0 2013
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ASEP Holding BV (2)
7857042 Coiled tubing injector head 3 2006
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Enlink Geoenergy Services, Inc. (2)
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AUTOMATED RIG TECHNOLOGIES LTD. (1)
7318482 Balanced continuous well string injection unit 0 2005
 
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* 2004/0244,993 Three in one combined power unit for nitrogen system, fluid system, and coiled tubing system 4 2003
 
BAKER HUGHES INCORPORATED (7)
* 5738173 Universal pipe and tubing injection apparatus and method 30 1996
* 5850874 Drilling system with electrically controlled tubing injection system 22 1996
* 6116345 Tubing injection systems for oilfield operations 41 1997
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Camco International Inc. (1)
* 5413170 Spoolable coiled tubing completion system 44 1994
 
VARCO I/P, INC. (4)
* 5309990 Coiled tubing injector 61 1991
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NLB Corp. (1)
* 2010/0300,498 EASY CHANGE TUBE CLEANING SYSTEM 1 2009
* Cited By Examiner