Open Hole Multi Stage Stimulation
40-414 CHSL Hydraulic Set Anchor Packer

Product Overview


The CHSL is a high performance purpose built hydraulic set packer designed as the cased hole anchor for multi-stage stimulation installations.  The CHSL is part of the “ZONE SEEKER” multi-stage stimulation system and provides secure, reliable, high pressure annular isolation and liner anchoring during formation treatments.  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.  An integral polished bore receptacle and latch profile provides a solid and reliable interface with the systems deployment tool. The CHSL 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 CHSL is rated for use in 7” casing 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.


  • Compact design provides ease of handling, reduces leak paths and significantly increases rig floor safety.
  • Dual circumfrential anchoring slips.
  • Integral polished bore receptacle and latch profile.
  • For 7" casing 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.
  • Elastomer options available.
  • Available in corrosion resistant alloys for hostile environments.
  • Standard and premium thread connections available.
  • 10,000 psi differential pressure rating as standard.
  • Higher differential pressure ratings available.

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