Coil tubing injector unit
Patent
·
OSTI ID:6994283
This patent describes a coil tubing injector unit for injecting tubing into a well bore having a vertical well axis, the coil tubing injector unit. It comprises: a main injector frame positionable adjacent the well bore, the main injector frame having a top, a bottom and opposing vertical sides, a selected one of the opposing vertical sides having a longitudinal opening formed therein which defines a vertical run for the injector unit; a plurality of gripper block assemblies carried on the main injector frame, each of the gripper block assemblies including a pair of plier-like halves which are pivotable between an open position and a closed, gripping position as the assemblies enter the vertical run. Drive means located on the main injector frame for driving the gripper block assemblies within the main injector frame.
- Assignee:
- NOV; NOV-92-048040; EDB-93-000327
- Patent Number(s):
- US 5133405; A
- Application Number:
- PPN: US 7-704321
- OSTI ID:
- 6994283
- Country of Publication:
- United States
- Language:
- English
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