Clean up magnet recovers debris from perforating operation
Four 3,5” Modular X Wing® Magnets were installed below the perforating guns, to recover steel debris from perforating the well
Location: Offshore, Norway

The field


The field is located northwest of Stavanger and has been producing for several years. The platform has several production wells and water injectors. The geology is very complicated and the oil has high viscosity, hence the most advanced well design and production technology are used. All wells on this platform are horizontal wells.
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Re-completion of old production wells


The toe section of the horizontal well was plugged back, and the old screens pulled due to poor production performance. The 6 5/8” liner was then logged and gauged using wireline. The well was re-perforated higher up in the horizontal section using wireline-perforating guns run on a tractor. Straddle packers were thereafter installed using a tractor. Finally, the operator installed modular screen sections over several runs, each section latched together to the previous section. The operator experienced problems to get a good latch of the screens and found the latch mechanism packed with steel debris when pulled to the surface for inspection.
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Perforating operation with magnets


Based on previous experience from perforating in Canada, the operator asked for magnets to be installed below the perforating guns for the next re-completion job. Innovar Solutions provided four 3,5” modular X Wing® magnets that were made up to the assembly. These magnets were originally made for dedicated stand-alone clean up runs on slickline or wireline, so this was a new innovative application. The magnets came out of the hole full of steel debris after the perforating operation.


Benefits


Cleaning the well for steel debris will increase the probability for successful latch of the completion screen sections. As the consequence of pulling the screens and re-run for a second attempt is quite large (24 hrs + rig time), the total risk is reduced.
Case study:

Challenges

 
  • Steel particle debris from perforating guns & casing caused problems when attempting to latch modular screen sections together
 

Solution

 
  • The challenge was identified correctly by the operator
  • Innovar supplied a 3,5” Modular X Wing® magnet to be installed below the perforating guns
 

Results

 
  • Large amounts of steel debris was recovered on the magnets
  • Facilitated trouble free latch of modular screen sections
  • Reduced probability of mis-runs and lost rig time

CERTIFICATES

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Innovar shall evaluate inefficient working tools and methods and seek to create, produce and sell solutions that will enhance the value for the customer. Based on reputation, Innovar will grow to be the preferred supplier.
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