Patents by Inventor Christopher R. Chia

Christopher R. Chia has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Wellbore surveying system and method
    Patent number: 7798216
    Abstract: A method for surveying a wellbore may include deploying a deployable wellbore survey tool into the wellbore, collecting survey data as the deployable survey tool traverses the wellbore, and determining wellbore position information based on the survey data. In one example the method may include landing the deployable wellbore survey tool on a component of a bottom hole assembly.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: September 21, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Wayne J. Phillips, Christopher R. Chia, Richard V. C. Wong
  • WELLBORE STEERING SYSTEM AND METHOD
    Publication number: 20080156485
    Abstract: A method for surveying a wellbore may include deploying a deployable wellbore survey tool into the wellbore, collecting survey data as the deployable survey tool traverses the wellbore, and determining wellbore position information based on the survey data. In one example the method may include landing the deployable wellbore survey tool on a component of a bottom hole assembly.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 3, 2008
    Inventors: WAYNE J. PHILLIPS, CHRISTOPHER R. CHIA, RICHARD V.C. WONG
  • Method for estimating a position of a wellbore
    Patent number: 6736221
    Abstract: A method is disclosed which utilizes multiple overlapping surveys to estimate a position in a wellbore and related position uncertainty. Multiple surveys are often taken over the same portion of a wellbore either concurrently or sequentially and/or using various instruments. Each survey generates an estimated survey position and related uncertainty for a given location in the wellbore. By combining the estimated survey positions and uncertainties for these overlapping surveys, a resultant position and related ellipsoid of uncertainty is estimated. This resultant position estimates a position in the wellbore by incorporating the estimated survey positions and uncertainties of multiple overlapping surveys.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 18, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher R. Chia, Wayne J. Phillips, Darren Lee Aklestad
  • Method for estimating a position in a wellbore
    Publication number: 20030121657
    Abstract: A method is disclosed which utilizes multiple overlapping surveys to estimate a position in a wellbore and related position uncertainty. Multiple surveys are often taken over the same portion of a wellbore either concurrently or sequentially and/or using various instruments. Each survey generates an estimated survey position and related uncertainty for a given location in the wellbore. By combining the estimated survey positions and uncertainties for these overlapping surveys, a resultant position and related ellipsoid of uncertainty is estimated. This resultant position estimates a position in the wellbore by incorporating the estimated survey positions and uncertainties of multiple overlapping surveys.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 3, 2003
    Inventors: Christopher R. Chia, Wayne J. Phillips, Darren Lee Aklestad