Open Hole Multi Stage Stimulation
40-404 Delta Ported Sleeve

Product Overview


The DELTA is a high performance purpose pressure activated ported sleeve designed as an annular communication device and is part of the "ZONE SEEKER" multi-stage stimulation system. Differential pressure activates and opens the sleeve providing access to the lowest section of formation for treatment. Field adjustable control screws allow selective activation pressure of the sleeve. Once Activated the Delta is locked into the open position.. At 23" in length and 5.50" OD the extremely compact Delta 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 DELTA is rated at full 10,000 psi differential pressure. A wide variety of materials and configurations are available.


  • Industries shortest and slimest multi-stage communication sleeve 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.
  • Reliable field proven differential pressure activation.
  • Fully selective open/close version available.
  • Purpose designed for open hole multi-stage stimulation applications.
  • Fewest o-rings and leak paths of any competing product.
  • Full mono-bore I.D. through the sleeve without the need to drill out.
  • Communication port flow area equal to liner ID area.
  • Optional test clamp allows full surface pressure test prior to running.
  • Field adjustable opening pressure.
  • 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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