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Successful OpenHole Multistage Fracturing

 Successful OpenHole Multistage Fracturing Operations with Saltel FracPackers

Context

  • A Gas producer horizontal well with openhole multi-stage completion (ball-drop sleeves) 4-1/2in 13.5 lb. /ft. P110 run in 6-1/8in openhole.
  • The client selected a combination of 2 different Isolation Packers: 15 Hydromechanical Isolation packers (competition) with 5 Saltel Expandable Steel FracPackers located at the toe.

Solution

FracPacker is a patented metal expandable packer specially designed for OH multistage frac operations. Saltel Industries provided five 10k 4-1/2in ISO 14310 V3 qualified to 10,000psi (68.9Mpa) differential pressure. The FracPackers came set on 10ft Pup Joint (4-1/2in 13.5ppf P110), with pin-box LT&C connections.

The short length of the packer (3.3ft) combined with its reduced intial diameter (5-1/2in) facilitated the Running In Hole. The Saltel FracPackers were first run to depth from 12,675ft (3,850m) to 13,800ft (4,200m) in the horizontal section, then successfully expanded a couple of months later with the frac fleet.

Saltel FracPackers ready to be run in hole

Results

  • The FracPackers installation was a success.
  • The FracPackers enabled successful Shale Fracturing Operations.
  • Frac pressure of the zones varied between 5,945psi and 7,395psi (41MPa to 51MPa)
  • 335m3 to 454m3 of frac sand have been pumped in the intervals

Conclusion

Checking both pressures and rates of each frac treatment in the intervals isolated by the Saltel FracPackers showed a solid annular isolation. Following this success, the Operator decided to run 36 FracPackers in a full Openhole multi-stage frac completion end of 2015.

 

 

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