... base line traverse residual error Reservoir Characterization information inclinometer drill hole adaptability Upstream Oil & Gas orientation sensitivity gauge length instrument deformation measurement Deflectometer portable borehole deflectometer transducer field deformation...

... of a special instrument. By this method horizontal displacements as small as 1 in. per 100 ft of depth could be detected. In the following sections the details of the field measurements are given. These are followed by a discussion of the results of the observations. Gulf Coast Region base line...