SNUBCALC
SNUBBING FORMULASCALCULATIONS
LIVESYSTEM STATUSALL SYSTEMS NORMAL
AUTOMATIC PIPE DATA / CONSTANTSGrey cells are calculated values or fixed constants
Tubing Weight9.67 kg/m
Tubing Collar Size3.668 in
Inside Diameter2.441 in
Gravity9.80665 m/s²
Buoyant Pipe Weight3.952 ppf
Buoyancy Factor0.8688 BF
JOB INPUTSEnter job information in the blue cells
WELL INFOPressure calculations
Wellhead PressureD7
218psi
Hydrostatic PressureD9
20,202kPa
Bottom Hole PressureD11
21,702kPa
Hanger Lift ForceH15
1,539daN
Buckling PointH17
35,852daN
Buckling 30% SafetyH19
25,096daN
SNUBBING CALCULATIONSJohnson buckling · Euler stroke
Snub ForceH7
2,294lbf
Meters to SnubH9
177m
Joints to SnubH11
18jt
Push ForceH13
1,415daN
Stripper DragD19
882lb
Max Stroke Before BuckleH21
32.00ft
Max Safe Stroke (30%)H23
22.40ft
LOAD5.6%of 30% buckling limit
STROKE22.3%of 30% stroke limit
WITHIN SAFE OPERATING LIMITS
AUTOMATIC PIPE DATA / CONSTANTSGrey cells are calculated values or fixed constants
Tubing Weight9.67 kg/m
Tubing Collar Size3.668 in
Inside Diameter2.441 in
Gravity9.80665 m/s²
Buoyant Pipe Weight3.952 ppf
Buoyancy Factor0.8688 BF
PIPE STRENGTHJ55 is green · L80 is red
PIPE DATA
J55 100%
J55 80%
L80 100%
L80 80%
Pipe Strength daN
44,32935,46464,47951,583
Pipe Collapse kPa
52,90077,000
Optimum Torque ft-lb
2,1702,973
PIPE VOLUME & WEIGHTCalculated from the selected pipe data
Pipe Displacement1.87m³
Pipe Capacity4.28m³
String Weight14,505daN
Buoyant Pipe Weight3.952ppf
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SEPARATE CAD COMPONENTS · ANNULAR
DOWNLOAD EXTERIOR STEP
PIPE DOWN—

Position the BHA, then press Zero to start the pipe tally. Click a BOP component to open or close it.

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