而膨胀式封隔器的膨胀则是通过泵送流体进入囊状物，与气球大约同样的方式，但是比气球具有更坚固的结构。
The expansion of the latter is accomplished by pumping a fluid into a bladder, in much the same fashion as a balloon, but having more robust construction.
封隔器两种最常见的形式是生产封隔器或者测试封隔器和膨胀式封隔器。
The two most common forms are the production or test packer and the inflatable packer.
生产封隔器的膨胀可能通过挤压位于两个盘子之间的弹性部件(有些象汽车轮胎形状)来完成，迫使侧边向外膨胀。
The expansion of the former may be accomplished by squeezing the elastomeric elements (somewhat doughnut shaped) between two plates, forcing the sides to bulge outward.
生产封隔器或者测试封隔器可能下入下套管的井段，而膨胀式封隔器可以在裸眼井段使用，也可以在下套管井段使用。
Production or test packers may be set in cased holes and inflatable packers are used in open or cased holes.
如果工具管柱外径有可能增加（如在射孔或使用膨胀式封隔器时），则在下入工具管柱和起出工具管柱这两种情况都应考虑井筒最小直径。
The minimum restriction should be considered in both running and retrieving modes if any increase in tool string outside diameter is likely, such as when perforating or when using inflatable packers.
它将封隔器与伸缩管设计成一体，采用V形膨胀石墨密封圈组成密封系统，确保伸缩管热力伸长时封隔器的密封性。
The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.
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.
为此研制开发小直径、小卡距、承压高、易操作的膨胀式封隔器系列，设计出适合套变井选层酸化、压裂以及薄层措施改造的多种工艺管柱。
Therefore, a series of special expanded packers with various kinds of advantages such as minor diameter, small spacing, and high bearing pressure, and simplify operation etc.
与此同时即可进行生产，开始膨胀进程，或者将当前流体引入封隔器以引起膨胀，也可直接循环专用膨胀液。
At that point either produce the well to begin the swelling process or allow the current well fluid to swell the packer systems prior to operations or circulate down the designed swelling fluid.
文中介绍了膨胀式长胶筒封隔器的结构、工作原理及用于钻井、完井的应用情况。
This paper describes its structure, working mechanism, and field using in drilling and completion.
此外还公开了由上述吸油膨胀材料和吸油吸水膨胀材料制成的密封件和封隔器。
Both sealer and packer are made of said oil-absorbing expansion material as well as oil and water-absorbing expansion material.
此外还公开了由上述吸油膨胀材料和吸油吸水膨胀材料制成的密封件和封隔器。
Both sealer and packer are made of said oil-absorbing expansion material as well as oil and water-absorbing expansion material.
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