Vallourec's Drilling Products Division has adapted an innovative forging process to produce seamless forged landing strings.
Traditionally, thick-walled drill pipe was used as landing string in order to perform casing and intervention operations in shallow waters. In deeper waters however, these conventional landing strings cannot withstand higher loads: the pipe may be damaged, and even crushed, by the slips holding it to the rotary table, which reduces the performance of the landing string.
To meet this challenge, Vallourec has adapted an innovative forging process existing at Aulnoye-Aymeries, France, which now allows the Drilling Products Division to produce seamless forged landing strings. This new friction-weld free construction has no heat affected zone likely to complicate the positioning of the slips and therefore reduces the risks for drillers and operators.