Schlumberger Technology Corporation

Lee B Metrick

John Thomas Morris

Judson F Parker

A well-log display ( ) having a principle axis ( ) matched to a deviation of a section of a well-bore ( ) is disclosed. By presenting a well-log ( ) at about the same angle as the section of the well-bore under consideration, a person viewing the well-log ( ) will have the advantage of easily visualizing the inclination of the well-bore ( ) to aid in geo-steering, proper interpretation of well-bore measurements, etc. Such a well-log ( ) may be presented as a hardcopy or as an interactive display on a computer screen ( ). A presentation ( ) of a well-log ( ) may include more than just the log itself, for example, a reference diagram ( ) of the entire well highlighting ( ) or otherwise indicating the part of the well currently being displayed in the well-log.

Well-log presentation, software and method thereof

A method, system and apparatus for calibrating the longitudinal accuracy of marking devices by using a comparison of a pattern printed on the transverse scale to a pattern printed on the longitudinal scale to calibrate the longitudinal scale is disclosed. The marking device could be a strip chart recorder, a printer, a well log printer or any other marking device for which one scale is less subject to variations or error than another. The information used for the calibration may be retained for re-use.

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Austin, TX, United States of America

Lee B Metrick