The using packers in oilfields have complex construction. Packer setting and releasing need for certain well conditions. Some problems exist in field application.
油田上目前常用的几种封隔器结构比较复杂，尘封和解封需要一定条件，对井况有特定要求，在实际应用中存在着一些问题。
According to the casing strings of different sizes, converting zone technology including chemical plugging and packer setting is matched during the process of selective zone production.
针对不同尺寸的套管完井，在侧钻井分层开采的过程中的配套了封堵和卡封等配套的改层工艺。
This kind of packer overcomes many disadvantages of the previous ones, such as difficulty in operation, and high possibility of not setting and not releasing.
它的研制与成功应用，克服了原来多种热采封隔器的缺点，如操作困难，不座封和不解封的几率较高等。
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。
The indoor test and field application show: Comparing with regular packer, it has such advantages as simple setting, reliable sealing, convenient fishing, smooth unfreezing.
室内试验及现场应用表明，与常规液压封隔器相比，它具有坐封容易、密封可靠、打捞方便、解卡顺利等优点。
This paper introduces a kind of new type self-sealing packer, whose hydraulic self-sealing mechanism replaces setting and releasing mechanism.
本文介绍了一种新型自封式封隔器，该片隔器采用液压自封原理，取消了封隔器的坐、解封机构和相应的操作。
The liner was cemented by cementing retainer after its annular was assured expedite by setting packer in liner and making circulation.
在尾管内下封隔器，循环确信尾管环空畅通后下入水泥承留器固井。
One-trip setting is accomplished by pressuring up against a plugging device below the packer after it has been run to depth.
一次下钻坐封时，首先将封隔器下入到预定位置时，通过在位于封隔器下方的短接下入堵头而后加压实现坐封。
Y341-114 self-sealing examination packer adopts integral design of setting and self-sealing examination mechanism, which achieves the simultaneous completion of setting and self-sealing examination.
Y341 114型自验封封隔器采用了坐封机构和验封机构一体化设计，实现了封隔器坐封与验封同步完成；
Y341-114 self-sealing examination packer adopts integral design of setting and self-sealing examination mechanism, which achieves the simultaneous completion of setting and self-sealing examination.
Y341 114型自验封封隔器采用了坐封机构和验封机构一体化设计，实现了封隔器坐封与验封同步完成；
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