Expro Excellence
Frank’s Tubular Running Services (TRS) Cementing Technologies
New North Sea record set as a 9-5/8” x 11-3/4” mixed casing string was floated to planned TD
Customer challenges
  • A major operator identified multiple challenges whilst planning to run a casing string in the 12-1/4” open hole of an ERD Well with a step-out ratio of 2.23 (6,378 ft step-out over just 2,858 ft TVD)
  • Computer modelling predicted that excessive drag in the horizontal section would prevent the casing being run conventionally beyond 5,000 ft measured
  • In order to run the casing to the intended measured depth of 8,400ft, the casing would have to be floated in hole using the ‘mud over air’ casing floatation method
  • Objectives
  • Hands-free casing running o Mitigate risks of ‘Slip-Slap’
  • Vent air whilst filling the casing after the floatation collar is burst
  • Rig-Up the cement hose with no personnel in the Red Zone and no working at height 
  • Launch two darts with no personnel in the Red Zone and no working at height 
  • Catch and contain the darts downhole during the cement job, recover to surface post job
  • Remove personnel from the Red Zone throughout the entire job
Expro Excellence
  • Expro provided specialist equipment and services that enabled all objectives to be achieved
  • Seven technologies with proven track record were used to maximize safety and efficiency:
  •  FA-1® Top Drive Casing Running Tool (CRT)
  • Single Joint Horseshoe Elevator (SJHSE) 
  • 14 3/8 Power Tong
  • Radio Remote Control Tong Control System 
  • Tong Pusher Arm (TPA) 
  • Blackhawk® Top Drive Cement Head
  • Skyhook® Wireless Cement Line Make-Up Device 
  • MULTICATCH™ Dart Catcher System
  • One new assembly was designed and manufactured to vent & fill the Casing
  • 11 3/4 Vent Sub Assembly
  • One conventional tool was modified to mitigate risk of equipment damage during ‘Slip-Slap’
  • Rotary Adaptor Ring
  • A subtle change to the Power Tong rig-up would ensure safe operations during ‘Slip-Slap’
Value to client
  • All operations were completed with no incidents and zero NPT
  • Meticulous planning, preparation and execution helped lower risks ALARP
  • Risks specific to casing floatation were identified, well managed and successfully mitigated
  • The string was run to the planned TD (8,227ft), enabling production potential to be maximized
  • The floatation collar was ruptured per plan with no unexpected outcomes
  • Venting the trapped air whilst simultaneously filling with mud minimized rig time
  • The string was cemented with no losses, and successfully pressure tested to 4,100psi
  • Expro technologies reduced and eliminated risks to personal, equipment and operations
  • Expro’s high quality of service helped the client complete a safe and very successful job
Contact
Expro Excellence
expro.com
Frank’s Tubular Running Services (TRS) Cementing Technologies
Expro Excellence

New North Sea record set as a 9-5/8” x 11-3/4” mixed casing string was floated to planned TD

In Brief
Wireless controlled technologies eliminate 'Working at Height' and 'Red-Zone Exposure' whilst running, floating & cementing casing on a Semi-Submersible in the North Sea
Product Line
  • Frank’s Tubular Running Services (TRS)
  • Cementing Technologies
Region
Europe and Sub Saharan Africa
Customer challenges
  • A major operator identified multiple challenges whilst planning to run a casing string in the 12-1/4” open hole of an ERD Well with a step-out ratio of 2.23 (6,378 ft step-out over just 2,858 ft TVD)
  • Computer modelling predicted that excessive drag in the horizontal section would prevent the casing being run conventionally beyond 5,000 ft measured
  • In order to run the casing to the intended measured depth of 8,400ft, the casing would have to be floated in hole using the ‘mud over air’ casing floatation method
  • Objectives
  • Hands-free casing running o Mitigate risks of ‘Slip-Slap’
  • Vent air whilst filling the casing after the floatation collar is burst
  • Rig-Up the cement hose with no personnel in the Red Zone and no working at height 
  • Launch two darts with no personnel in the Red Zone and no working at height 
  • Catch and contain the darts downhole during the cement job, recover to surface post job
  • Remove personnel from the Red Zone throughout the entire job
Expro Excellence
  • Expro provided specialist equipment and services that enabled all objectives to be achieved
  • Seven technologies with proven track record were used to maximize safety and efficiency:
  •  FA-1® Top Drive Casing Running Tool (CRT)
  • Single Joint Horseshoe Elevator (SJHSE) 
  • 14 3/8 Power Tong
  • Radio Remote Control Tong Control System 
  • Tong Pusher Arm (TPA) 
  • Blackhawk® Top Drive Cement Head
  • Skyhook® Wireless Cement Line Make-Up Device 
  • MULTICATCH™ Dart Catcher System
  • One new assembly was designed and manufactured to vent & fill the Casing
  • 11 3/4 Vent Sub Assembly
  • One conventional tool was modified to mitigate risk of equipment damage during ‘Slip-Slap’
  • Rotary Adaptor Ring
  • A subtle change to the Power Tong rig-up would ensure safe operations during ‘Slip-Slap’
Value to client
  • All operations were completed with no incidents and zero NPT
  • Meticulous planning, preparation and execution helped lower risks ALARP
  • Risks specific to casing floatation were identified, well managed and successfully mitigated
  • The string was run to the planned TD (8,227ft), enabling production potential to be maximized
  • The floatation collar was ruptured per plan with no unexpected outcomes
  • Venting the trapped air whilst simultaneously filling with mud minimized rig time
  • The string was cemented with no losses, and successfully pressure tested to 4,100psi
  • Expro technologies reduced and eliminated risks to personal, equipment and operations
  • Expro’s high quality of service helped the client complete a safe and very successful job
Contact

For further information, please contact:

wellconstruction@expro.com
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