Hydraulic overshot with removable setting and testing core

摘要: A hydraulic overshot apparatus designed to slide over plain end tubing and set by applying fluid, under pressure, via a setting port, into center chamber which allows pressure direct two different piston areas. The compresses packer elements slips against the outer diameter (O.D.) of tubing. test inner (I.D.) is ported through upper portion o allow move from lower portion. includes body lock ring for elements. Setting moves down ring. As down, it ratchets teeth on both will prevent backward movement (or upward movement) as downward compress force onto O.D. stored in provides reaction needed After has been tested, testing core removed work operations. If or pumping allowed come up apparatus, increase slips.