大通径顶部封隔器是一种用于注水井的顶部悬挂封隔器，其胶筒可以承 受5000psi的压差，其大通径的设计可以满足各类注水管柱的下入，提高注水 管柱的注入量和注入效率。在后期的打捞作业过程中，其大通径的设计，便于 注水管柱的打捞。其可以与液压坐封工具配合实现坐封，可以选择液压脱手或 机械脱手。当需要回取时，可以下入专用释放工具进行回取。

主要特性 

大通径，通径达到4.75"，更好地满足后期注水、采油和打捞要求。下入过程中可以打压丢手或正转管柱丢手，下入专用工具回取工具遇阻或下入困难 时可旋转管柱。

7" LARGE DIAMETER TOP PACKER

The large diameter top packer is a top suspension packer used for water injection wells. Its rubber barrel can withstand a high pressure difference of 5000PSI. Its large diameter design can meet  the running in of various water injection strings and improve the injection volume and injection  efficiency of water injection strings. In the later fishing operation, its large diameter design is  convenient for the fishing of water injection strings. It can be combined with hydraulic setting  tools. The setting can be realized by cooperation, and hydraulic release or mechanical release can  be selected. When it needs to be retrieved, special release tools can be lowered for retrieval.

FEATURES

Large diameter, with a drift diameter of 4.75 ", to better meet the requirements of water injection,  oil production and fishing in the later stage. During running in, you can press and release or release the forward rotating string. When the special tool is blocked or difficult to run in, you can  rotate the string.

Note: Other specification products are available.