Abstract: A coiled tubing injector head comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. A plurality of gripper assemblies are positioned around the middle links of the endless chains. A bearing skate is positioned within the injector head, the bearing skate be comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. An injector head is comprised of a plurality of halves, each of the halves being coupled to a positioning bar, the positioning bar having a plurality of openings formed therein, the openings adapted for use in varying the distance between the first and second halves.
Type:
Grant
Filed:
November 5, 2001
Date of Patent:
August 26, 2003
Assignee:
Drilling & Coiled Technology, Inc., a division of Gotco
International, Inc.
Abstract: The present invention is directed to a coiled tubing injector head comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. The invention further comprises a plurality of gripper assemblies that are positioned around the middle links of the endless chains. The present invention further comprises a bearing skate positioned within the injector head, the bearing skate be comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. The invention further comprises an injector head comprised of a plurality of halves, each of said halves being coupled to a positioning bar, said positioning bar having a plurality of openings formed therein, said openings adapted for use in varying the distance between said first and second halves.
Type:
Application
Filed:
November 5, 2001
Publication date:
April 25, 2002
Applicant:
Drilling & Coiled Technology, Inc. a division of Gotco International, Inc.
Abstract: A coiled tubing injector head is comprised of a plurality of endless chains, each of which are at least three links wide, that are positioned around a plurality of sprockets and/or idler rollers within the injector head. A plurality of gripper assemblies are positioned around the middle links of the endless chains. A bearing skate is positioned within the injector head, the bearing skate being comprised of a plurality of bearings in a staggered configuration, the bearings being adapted for rolling engagement with a portion of the gripper assemblies. An injector head is comprised of a plurality of halves, each of the halves being coupled to a positioning bar, the positioning bar having a plurality of openings formed therein, the openings adapted for use in varying the distance between the first and second halves.
Type:
Grant
Filed:
January 15, 1999
Date of Patent:
February 19, 2002
Assignee:
Drilling & Coiled Technology, Inc., a division of Gotco
International, Inc.