Resources Contact Us Home
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
Semiconductor device, method of manufacturing the same, and signal transmitting/receiving method using the semiconductor device
Method and apparatus for generating and playing audio signals, and system for processing audio signals
Image processing system, image processing server, image forming apparatus, image processing method, and recording medium
Model for system-wide application extension
Density-based filtering of gesture events associated with a user interface of a computing device
Apparatus for transmitting and receiving downlink HARQ feedback and its method
Asbestos-treating agent and method for treating asbestos
  Randomly Featured Patents
Monoclonal antibody L53 which recognizes a human tumor-associated antigen
Display apparatus and display drive mechanism for vehicle
Liquid crystal display device capable of low temperature use and having rod-shaped gold particles of nanometer order dispersed in the liquid crystal layer
PET pouch/package with foldable base
Process for the reductive removal of halogen atoms from anthraquinones
Power tool with vibration reducing means
Method and apparatus for wireless transfer of chemical-mechanical planarization measurements
Supporting and raising device for supporting and raising plastic bottles
Orthotic knee wrap
Mold for development blade and method of producing development blade