Schlumberger Oilfield Services has announced that three surface-controlled subsurface safety valves (SCSSV) have been successfully set below 10,000ft in Mississippi Canyon Block 522 in the Gulf of Mexico. The Schlumberger TRC-DH valves have been set at record depths in three wells in the Fourier Field, one of five Na Kika development fields. The recent valve setting depths represent another Schlumberger record, this time occurring three times in succession. In the Shell/BP Na Kika Project, Fourier Field wells F-2, F-3 and F-4 have TRC-DH safety valves set at 10,057.42ft, 10,046.95ft and 10,060.40ft, respectively. Schlumberger also set the previous depth records at 9882ft at Camden Hills and 8394ft at Shell’s Mensa subsea development. The Fourier wells are in water depths of approximately 7000ft. Fourier Field well F-3 was the first in the world to have a SCSSV installed deeper than 10,000ft, followed closely by two more installations exceeding this depth. The Na Kika development, owned by Shell and BP, is located 140 miles SW of New Orleans.