Patents Assigned to WEATHERFORD FRANCE SAS
  • METHOD AND TOOL FOR UNBLOCKING A CONTROL LINE
    Publication number: 20090205831
    Abstract: A method to release a control line for a safety valve removably disposed in a nipple (9) of a wellbore production tubing, comprises the steps of: —removing the safety valve from the nipple; —setting into the nipple a sealing tool (41) which sealingly connects the control line (10) and a mini tubing (42) running down into the production tubing; —increasing the pressure of a fluid into the mini tubing to cause fluid to flow into the control line through the sealing tool.
    Type: Application
    Filed: April 13, 2007
    Publication date: August 20, 2009
    Applicant: WEATHERFORD FRANCE SAS
    Inventor: Jean-Luc Jacob