The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1996
Filed:
Jul. 28, 1995
Malcolm N Council, Richardson, TX (US);
Carl H Johnson, Carrollton, TX (US);
Halliburton Company, Duncan, OK (US);
Abstract
A twin carriage coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the tubing from the well. The apparatus includes a superstructure with a pair of spaced carriages disposed therein. The carriages each have a gripper chain drive system rotatably mounted thereon and movable therewith. An actuation and linkage system allows the carriage to be moved toward and away from one another in a transverse direction with respect to the superstructure. This movement allows gripper chain systems to be engaged or disengaged from tubing extending through the apparatus. A roller chain system is disposed in each of the carriages and is adapted for engagement and support of the gripper chain systems as the gripper chain systems are engaged with the tubing. A timing gear system may optionally be provided to insure that the rotational speed of the gripper chain systems are substantially constant.