坑井健全性におけるジオメカニクスの検討

抄録

Abstract：Well integrity is one of the most important considerations in wells engineering and requires technical measures to reduce the risk of uncontrolled release and leakage of formation fluids during drilling, well completions, production, and abandonment stages. Many casing damage incidents and well integrity issues caused by subsidence and reservoir compaction have been reported in HPHT oil and gas fields in the North Sea and the Gulf of Mexico. This study presents lessons learned from casing failure events reported overseas and also discusses how to deal with these well integrity issues from geomechanics aspects.