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TRIDENT Single-Trip Cut and Pull System saves rig time and eliminated handling of 2 BHA's.

TRIDENT

  • Enabled cement plug drilling - 3 meters
  • Weigth tested cement plug with 10 tons
  • Completed casing cut at 740mMD
  • Enabled circulation of annular gas
  • Recovered casing to surface from hanger - 27mMD

The TRIDENT System saved the client 2 trips, and 32% of planned rig time

The Operation
A North Sea operator wanted to perform a slot recovery operation on a platform well in a safe, efficient and cost-effective manner. Planned operations included drilling the top of a cement plug, verifying hard cement, cutting the 9 5/8”casing at 740mMD, and recovering the string of 9 5/8” casing. The operation would require 3 trips in hole with conventional technology.

The Solution
TRIDENT was deployed to perform the required operation in a single trip. TRIDENTTM was fitted with a roller cone drill bit to drill the top of the cement plug and weight test to verify hard cement plug. TRIDENTTM Cutter was activated and a successful cut was conducted in 6 minutes.

TRIDENT Packer was engaged and annular gas was circulated out through the annulus outlet on the wellhead. After relocating the TRIDENTTM Anchor below the casing hanger, the casing was recovered to surface. All operations were conducted in a single trip.

Please click here to download case study.

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