Drill challenging section in a single run
An operator had undertaken an aggressive drilling campaign in a deep gas field in central Oman. One of the first challenges was finding optimal technologies to drill the 12 ¼-in hole section, which historically required multiple runs. The section consists of a wide range of formations, from soft limestone and shales to hard and abrasive limestone and sandstones. The interbedded hard formations had proved to be a difficult obstacle to effective drilling. The operator's ultimate goal was to drill the entire section, which spanned 2,500 m [8,200 ft] on average, with the highest ROP possible.
Use unique AxeBlade bit to overcome wear challenges
In collaboration with the operator's drilling team, engineers from Smith bits, a Schlumberger company, customized an AxeBlade bit toward the goal of meeting the objectives for the section. Extensive analysis by the two teams was completed during the technology development phase, which evaluated offset wells to pinpoint areas for improvement.