Moonpool drilling rig

A moon pool is an equipment deployment and retrieval feature used by , , , , and or , and. . The Hughes was a 50,500 long tons (51,300 t), 619-foot-long (189 m) ship constructed by the United States in the early 1970s for the from the Pacific seabed. The desig. . Very deep moon pools are used in —submerged chambers used by divers engaged in underwater research, , , and . In this case, shown in part D of. . Moon pools are becoming increasingly used on to allow for hauling of the gear in worse weather conditions. They also reduce the exposure of fish to air, improving quality. Along with bird scarin. [pdf]