Fugro Chance Inc. recently performed non-typical acoustic metrologies on four proposed jumpers in the Gulf of Mexico. By industry standards the measurements were completed in a substantially short time frame, the company said. A typical metrology takes approximately 12 hours for one measurement, resulting in an anticipated operational time of around 48 hours in total. However, these non-typical acoustic metrologies were completed with accurate results in just 33 hours. Two standard Sonardyne Compatt 6 transponders and two Sonardyne Lodestar GyroCompatts (LGCs) were used to acquire tilt magnitude and direction from manifold pressure caps to wellhead casings. Four Compatts were used to ensure repeatable results.