The internal pressure strength of tubing and casing often cannot satisfy the design requirements in high pressure. high temperature and high H2S gas wells. Also. the practical safety coefficient of some wells is lower than the design standard according to the current API 5C3 standard. https://www.roneverhart.com/Castello-di-Amorosa-Il-Barone-Napa-Valley-Cabernet-Sauvignon-2007/