PL19-3II oilfield, with water depth at about 27.6 meters, is located in the middle of Bohai Sea. POE analyzed WHPD module, which consists of a 2200-odd-ton, 4-leg wellhead module, a 2100-odd-ton, 4-leg equipment module, a 1300-odd-ton electric module and a 1500-odd-ton living quarter. POE put forward totally 17 reports, including lifting analysis, transport analysis, fastening analysis, transport stability analysis, barge response analysis and barge load analysis.