A hydraulic setting anchor of type GY241, and a double packing ZY331 back washing packer features in self pack and rubber sleeve pack are developed.

研制了液压坐封gy241型锚定器和“自封与压缩胶筒”双重密封的ZY331型反洗封隔器。

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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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The packer string with free movement is an important type of packer completion. The change of pressure and temperature can make the packer string get force, which results in deformation.

允许自由移动的封隔器管柱是油气井封隔器完井的一种重要类型，油气井内压力和温度变化会导致封隔器管柱受力，从而发生变形。

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It perhaps would give Packer a backdoor to owning a piece of the Chicago company if Scoopon required some type of equity in return for the precious webname or buy Scoopon outright.

FORBES: Groupon Facing Battle With Aussie Billionaire Packer