Abstract
Through the 4 years technical examination which consist of construction or utilization of facilities to correspond with Japanese regulation, logistics, rig modification, crew training, technical consideration of both mud cooling and well control, JAPEX were able to introduce first SBM in Japan in 2006 for Akebono SK-4D well.
In the course of utilization of SBM in Akebono well, JAPEX demonstrated a total qualified engineering and operational capabilities.
Due to lost return problem in Akebono well, hence actual operational days had to be lengthened in spite of being given a good hole condition compared with the past WBM experience.
Since then, SBM were to be utilized for next two wells, Numanohata SK-7D and 8D, and JAPEX found several outcomes and have been still trying to solve some of concerns such as cutting handling and SBM storage in order to be further proficient in utilizing SBM and establish or prove its profits for future operation.
