The main measures for damage prevention of this type of formations in deeply seated sandstone reservoir can use stubilizer, temporary screen blocking, iron chelating agent and acids for fracturing.

• 深埋藏砂岩储集层潜在伤害类型主要是固相颗粒堵塞、无机结垢等引起的渗透率下降，其保护措施主要是添加稳定剂及铁螯合剂、复合酸酸压和屏蔽暂堵等。