海底仕上げにおけるアニュラープレッシャービルドアップのマネージメント

抄録

Recently, the number of HPHT (high pressure & high temperature) wells has been increasing due to development of deep oil & gas reservoir, and annular pressure build-up (APB) caused by heat transmission from wellbore to tubing or casing annulus and pressure increase during production is concerned to damage production casings. To manage APB especially in subsea well, four kinds of management were picked up and selected rupture disks expected to be most effective to prevent APB. This paper shows the process to select most effective management for APB, and well design to install rupture disks.