Open Hole Multi Stage Stimulation
40-401 OH Isolation Packer

Product Overview


The OH is a high performance purpose built hydraulic set packer designed for open hole applications. The OH is part of the "ZONE SEEKER" multi-stage stimulation system and provides secure, reliable, high pressure annular isolation during formation treatments. The unique modular design of the OH allows one or more packers to be stacked within a given zone at the operator's discretion to achieve multi-redundant independent annular isolation seals. The extremely compact design provides ease of handling and rig floor make up, liner string flexibility and trouble free deployment into even the most difficult well profiles. The OH is set by applying pressure to the tubing string and a high performance fully retained packing element reliably holds extreme differential pressures from above and below through multi pressure and direction cycles. The 5.625" extreme slim body design of the OH is rated for use in 6" to 6 ½" hole at full 10,000 psi differential pressure. A wide variety of materials and configurations are available for severe environments and higher differential pressure ratings. A full line of accessory equipment is available providing a complete open hole multi-stage stimulation system.



  • Modular design allows multiple independent seal elements to be stacked in any given zone.
  • Industries shortest and slimest open hole packer combined with the industries widest extrusion capability ensures liner felxibility and trouble free deployment in all well profiles.
  • Compact design provides ease of handling, eliminates the need for handling joints, reduces leak paths and significantly increases rig floor safety.
  • 5.625" body OD covers 6" to 6 ½" hole size.
  • Full mono-bore I.D. through the packer.
  • Simple hydraulic set by pressuring up on tubing string.
  • Purpose designed for open hole multi-stage stimulation applications.
  • Fewest o-rings and leak paths of any competing product.
  • Optional test clamp allows full surface pressure test prior to running.
  • Reliable high pressure fully secured packing element.
  • Available in corrosion resistant alloys for hostile environments.
  • Standard and premium thread connections available.
  • 10,000 psi differential pressure rating as standard.

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