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Performance By The Numbers

AlphaV™ Single-Trip Casing-Exit System and AccuView® Real-Time, Remote Support

Enables Equinor to Exit 13-3/8 in. Casing in Adverse Wellbore Conditions with Enhanced Efficiency and Reliability

Objectives

  • Exit 13-3/8 in. casing in a deviated well in a single trip following previous plug and abandonment operations.
  • Eliminate the need of a dedicated wellbore-preparation run.
  • Increase tripping speed while running in hole.
  • Provide a permanent installation with a secondary abandonment barrier.

Our Approach

  • Weatherford recommended Equinor run the AlphaV system with an integral scraper assembly to ensure a clean setting area prior to setting the whipstock and avoid additional cleanup trips prior to installing the whipstock.
  • To deliver the high-torque and load-bearing capabilities needed to perform the cleanup operation in the same run and increase tripping speeds, the exclusive AlphaV system was selected.
  • The AlphaV system enhances safety in tripping operations when abrupt workstring movement can cause premature shear release of the whipstock assembly.
  • AccuView was used to plan and manage the casing-exit operations. In addition, the AccuView software provided real-time collaboration and support between Weatherford re-entry experts and the wellsite.

Value to Customer

  • The integral full-coverage scraper in the AlphaV system enabled Equinor to clean and scrape the setting area in the same trip prior to setting the whipstock.
  • The retractable pin within the patented Hydraulic Mill Release (HMR) system, combined with its rigid, millable collar, allowed Equinor to increase trip speed without fear of accidental shear-off.
  • Equinor was able to exit the 13-3/8 in. casing in a single trip with minimal gauge loss to the mills. The drilling bottomhole assembly (BHA) passed the window without any restriction, ensuring the quality and reliability of the sidetrack.
  • The AccuView software contributed significantly to the efficiency of the casing-exit operation by allowing remote data-monitoring, enabling subject-matter experts to make critical, real-time decisions.
  • Due to unplanned changes in the mud parameters, the secondary mechanical release of the AlphaV system was utilized to avoid an additional trip.

Learn More

Re-Entry Services
 
Cased-Hole Systems
 
Print Version
Details

Customer

Equinor

Rig

Statfjord A

Location

Norway, North Sea

Well Type

Offshore, deviated

Formation

Rogaland

Hole Size

12 1/4-in. (31.12 cm

Hole Angle

50°angle

Casing Size and Type

13-3/8 in. (33.97 cm) 72# N80

Casing Exit Depth

6,968 ft (2,123 m)

Products/Services

AlphaV Single-Trip Casing-Exit System and AccuView® real-time remote support

Contact Weatherford

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