Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Tubing friction reducer










Image Number 4 for United States Patent #5692563.

A tubing friction reducer is mounted on a length of tubing within a bore hole. The friction reducer includes a cylindrical body having a first section and a second section hingedly secured around an exterior surface of the coiled tubing, the cylindrical body having an outside diameter larger than an outside diameter of the coiled tubing and less than an inside diameter of an adjacent bore surface. A plurality of roller bearings positioned on and extending outwardly from the cylindrical body extending in a generally axial direction along the cylindrical body for the purpose of reducing friction between the coiled tubing and the bore surface generated upon contact between the coiled tubing and the bore surface. Retaining mechanisms such as collapsible springs are included for securing the roller bearings to the cylindrical body. The tubing friction reducers are placed along the tubing at intervals to either minimize injector force, prevent buckling, and tubing failure, due to buckling or wear.








 
 
  Recently Added Patents
Antenna for an automobile
Method, system and computer program product for verifying floating point divide operation results
Automatic stop and restart device for an engine
Systems and methods for image stream processing
Voltage generating system and memory device using the same
Permanent magnet axial field zeeman slower
Stacked structure and stacked method for three-dimensional chip
  Randomly Featured Patents
Aliphatic polyurea elastomers
Apparatus and techniques for processing of data such as color images
System and method for active control of etch process
Electromagnetic valve
Swing
Developing device and image forming device equipped with same
Liquid crystal display device
Chain scission polyester polymers for photoresists
Liquid dispenser for eye drops
High speed bare chip test socket