Patents Represented by Law Firm Lahive & Cockfiel, LLP
  • Patent number: 5944099
    Abstract: In the use of composite materials for a coiled tubing for downhole use, precise external tubular dimension and durable wear surface become a critical factor because of the potential for damage to the external surface as the tubing passes through the stripper assembly at the wellhead which is provided to control high pressures within the well. An infuser arranged within the stripper provides lubrication for the passage of the composite tubing through the sealing members within the stripper and also infuses fluids into microfissures and cracks naturally occurring on the surface of the composite tubing to fill the voids and thereby enhance the structural integrity of the tubing.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: August 31, 1999
    Assignee: Fiber Spar and Tube Corporation
    Inventor: Alexander Sas-Jaworsky