Y221 packer is used for layered water injection, layered oil production, leak detection, water plugging, acidification, fracturing and oil testing. Wide application range.

The hydraulic anchor body is made of stainless steel and the rubber cylinder is made of hydrogenated butadiene rubber vulcanized. It has the characteristics of high temperature resistance, aging resistance and high pressure difference resistance. After long-term setting, compression and unsealing, it has good recovery performance. The anchor claw and slip are embedded with cemented carbide, which increases the ability to bite the casing, and can bite the casing of different steel grades. The slip seat and slip adopt wedge-shaped coordination, which solves the problem of slip opening and retraction, that is, setting and unsealing are flexible, and it is not easy to jam the well. Sand control pipe is set in the central pipe, which has good service performance.