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Snubbing Operation


SnubbingOperation is one of well services job using hydraulic system. Launched by Otis Engineering since 1929 and go international since 1950. Used for :
hydraulic workover unit (long stroke)
  • Pulling and running a single or dual completion
  • Running and pulling submersible pump
  • Fishing
  • Sand Washing
  • Millilng Bridges and packer
  • Squeeze cementing
  • Drill out cement
  • Through tubing gravel pack
  • Acidizing
  • Rig Assist
  • etc
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The technique of running on or out a pipe under pressure is more economical by without first killing the well than to kill it. This typical operation avoid damaging the production zone by penetration of mud / liquid into the formation.
Snubing BOP

SNUBBING UNIT MAIN FEATURES
(HR 150)


BOP STACK
Working Pressure : 5000 psi, Cameron Type
Drift  :  4 1/16"
Operating press. (hydraulic actuating press.) : 1500 psi
Rams block to accommodate : 1.315" ; 1.660" ; 1.900" ;   2 3/8" mac. pipe.
Functions  :  BOP
No. 1   :  Stripping BOP
No. 2   :  Stripping BOP
No. 3   :  Blind rams BOP
No. 4   :  Shear ram BOP
No. 5   :  Safety BOP
No. 6   :  Safety BOP
                ·        Well Head Adaptor Flange  :  4 1/16 x 3 1/16, gasket RX35
                                                                       4 1/16 x 4 1/16, 5000 psi, gasket BX155
                ·        Kill Line    :    -    two 2" x 5000 psi manual valves (1/4 turn).
                                               -    below BOP No. 3
                ·          Equalizing Line for BOP No. 2 :
                                         -    one hydraulic actuated valve 2" x 5000 psi.
                                         -    one manual valves (1/4 turn) 2" x 5000 psi.
                ·          Bleed Off Line   :     -     one hydraulic actuated valve 2" x 5000 psi.
                                                      -     one manual valve (1/4 turn) 2" x 5000 psi.
                                                      -     below BOP No. 1.
             ·          One Spacer Riser    :     4 1/16" x 5000 psi for 1.315 to    3 1/2  pipe length 0.5 m : between BOP No. 1 & No. 2.

 
Snubbing Operation Reviewed by Arief Dermawan on 4:47 PM Rating: 5

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