Dave:
There was a post on another site, by a Dave Sutton, re: the deaths of commercial divers Gottula and Akana. Was that you?
I was a diver at Santa Fe, and worked with both Roger and Paul, circa 1980, out of the Houma La, office. Just remembered the accident that took their lives, today, and found your comments on tmishop.com. I believe that I left the company shortly before the accident that took their lives, and heard about it from a fellow diver, Dan Rohe, who also worked at Santa Fe. It was my understanding that both divers were fed pure helium, instead of mixed gas, at some point during the dive, while Paul was locked out and working on the well head. I don't know what helmets they were wearing, but Santa Fe did use the Swindell semi closed circuit rigs, for surface jumps, but do not know if used them for bell diving.
Did we work together at Santa Fe? I don't remember your name, but then I don't remember most of the names of the other divers I worked with there. I do remember Billy Fissette, whom I also worked with at Oceaneering International. Paul was a tender when I first worked at Santa Fe. On many dives, he was in the bell, when I came up from a mixed gas dive. I transferred from the open bottom bell, to the diving bell he was in, to aid in my transfer to the decompression chamber on deck, to complete my decompression on O2.