Hydraulic stage collar

  • The tool can be opened hydraulically without a free-fall opening cone, which enables operations in highly deviated wells
  • Shear pins can be adjusted at the rig site, which enables the operator to adjust opening pressures to specific well requirements
  • The absence of an opening cone along with PDC-drillable materials accelerates drill-out and saves costly rig time


Mainly specification
Size(in) 5-1/2" 7”
Length,mm 930 956
MAX.O.D,mm 168 210
Opening pressure,MPa 17-18 17-18
Closing pressure,MPa 8-10 8-10
Open sleeve I.D,mm 87.31 114.3
Drill-out I.D,mm 123.03 157.48
Length of closing plug,mm 267 273
MAX. O.D of closing plug,mm 135 169.86
Length of opening plug,mm 312.74 381
Length of first stage plug,mm 391.32 422.26
MAX.O.D of first stage plug,mm 139.7 173.83
Shut-off baffle I.D,mm 71.12 77.44
Shut-off baffle O.D,mm 153.67 200.03
  • Phone
  • WhatsApp
  • Message
× Send

Now Contact Us

Partner with Shangshan Petro for Your Cementing tools and casing accessories Needs

This website uses cookies to ensure you get the best experience on our website. Learn more