Patents Assigned to SCHLUMBERGER SEACO INC.
  • SYSTEM AND METHOD FOR CORRECTING ERRORS IN DEPTH FOR MEASURMENTS MADE WHILE DRILLING
    Publication number: 20090038392
    Abstract: A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drill-string during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit.
    Type: Application
    Filed: September 28, 2004
    Publication date: February 12, 2009
    Applicants: SCHLUMBERGER TECHNOLOGY B.V., PRAD RESEARCH AND DEVELPMENT N.V, SCHLUMBERGER CANADA LIMITED, SCHLUMBERGER SEACO INC., SCHLUMBERGER HOLDINGS LIMITED, SCHLUMBERGER OVERSEAS S.A., SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER SURENCO S.A.
    Inventors: Walter Alfred, Maurice Ringer