The outer casing packer can be used in the troublesome Wells in which the high pressure gas channeling and the loss of circulation occur, to improve the cementing quality.
套管外封隔器可用于有高压气窜、恶性开漏等复杂情况井的固井，使固井质量有所提高。
The probability of packer sticking is increased because of the casing deformation and crustation in casing failure well.
在套损井中，由于套管变形、结垢等因素，进一步加大了封隔器卡钻的可能性。
A type of packer that USES an inflatable bladder to expand the packer element against the casing or wellbore.
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。
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