DH-221M Retrievable Mechanical Packer  Application:  Apply for zonal injection,Website:http://www.dhpetrotools.com, extraction, leak finding, squeeze, acid treatment and well testing.  Feature:  · Hydraulic anchor use stainless steel materials, which effectively prevent the phenomenon hydraulic anchor claw rust and not back happened because of long time, poor water quality in the sealing process.  · The elements are made of import modified hydrogenated butadiene acrylonitrile  rubber vulcanization, which has the characteristics: high temperature resistance, anti-aging, resistance to high pressure difference. Once uncured after a long time in seal compression, the recovery is good.  · Anchor claw and slip are set with hard alloy, which increased the bite of casing ability; it is suitable for different styles.  · Slip and slip bowl are combined with wedge, which makes set or unsealing easy..  · Center tube is designed with internal the sand controls scream so that it is easy to be recovery.  The design of packer is scientific; Production processing technology is controlled strictly,  good performance characteristics.  Parameters:Casing (in)OD. (in)ID. (in)Length (in)Temp. (℉)Pressure (MPa)Thread (in)54.331.7355.35250-3005000-100002-7/8 EU54.491.8953.54250-3005000-100002-7/8 EU5-1/24.722.1755.31250-3005000-100002-7/8 EU65.312.2855.91250-3005000-100002-7/8 EU6-5/85.512.4456.50250-3005000-100002-7/8 EU6-5/85.672.9957.48250-3005000-100003-1/2 EU75.832.9957.87250-3005000-100003-1/2 EU75.983.2358.39250-3005000-100004 EU7-5/86.503.2358.74250-3005000-100004 EU8-5/87.283.6258.98250-3005000-100004 EU9-5/88.273.6259.41250-3005000-100004 EU9-5/88.463.9459.88250-3005000-100004-1/2 EU