Patents Represented by Attorney, Agent or Law Firm Briggitte L. Jeffery
  • Method and apparatus for correcting the depth index for well-log data
    Patent number: 6704655
    Abstract: A wireline well-logging data acquisition system and method with corrected depth index. The system having a winch for reeling-in a wireline cable connected to a well-logging tool. A depth index device and a cable tension meter are connected to the wireline cable. A computer system adjusts the depth index as a function of wireline tension measured by the cable tension meter. The computer system executes a method that includes a control loop for adjusting the depth index as function of the wireline tension.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: March 9, 2004
    Assignee: Schlumberger Technology Corporation
    Inventor: Ronald C. Kelly