封隔元件肩部保护结构和定位大锁块的采用，提高了封隔器的密封、坐封和解封性能。
Packing element shoulder protection and large locking structure improves the properties of the packer.
利用可膨胀胶囊使封隔器密封元件紧靠套管或井筒的一种封隔器。
A type of packer that USES an inflatable bladder to expand the packer element against the casing or wellbore.
随后施加拉张力或压缩力(取决于封隔器的设计)使封隔器密封元件坐封。
Subsequent application of tension or compression, depending on packer design, will set the packer elements.
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