JAPEX drilled a multi-lateral, multi-layer completion well in the Katakai gas field in 2022-2023. The well was designed as a multilateral well to access two targets located several hundred meters from a single new wellhead in the well pad, and to enable production from another reservoir above the multilateral section to enhance the value of a single wellbore.
At the beginning of well design study stage, a number of issues to realize the well design described above were identified that needed to be resolved, and measures were developed to address them, including the procurement of materials and equipment for contingency cases, which were then incorporated into an action plan.
As a result, the drilling operations could be completed without having to switch to the contingency case.
This paper presents the main issues identified during the well study phase and the drilling operation results.
