SSY Petroleum Pte. Ltd
Attachment-A
Head Loss Calculation
Project Name
Line Identification
=
=
Doc No
:
SSY-DB-FL-23-001
Rev
:
0
1 of 2
Sheet No :
Pembangunan 8 Sumur Produksi Dan 3 Sumur Water Disposal Lapangan Puyuh
Flowline Puyuh 6
Calculation of Head Loss, hL, and Frictional Pressure Drop, DPf,
for given flow rate by Production of Well (BFPD), Q, pipe diam., D, pipe length, L,
pipe roughness, e, and fluid properties, r & m.
1. Determine Friction Factor, f, assuming completely turbulent flow {f = [1.14 + 2 log10(D/e)]-2}
Inputs (enter values in the blue boxes)
Calculations
3
in
Pipe Diameter, D =
0.2500
Pipe Roughness, e =
0.00015
ft
Friction Factor, f =
0.01739
Pipe Length, L =
3412.24
ft
Cross-Sect. Area, A =
0.0491
ft2
Pipe Flow Rate, Q =
0.02061
cfs
0.4
ft/sec
1.94
slugs/ft
Assumed Pipe Diameter, Din =
Fluid Density, r =
Fluid Viscosity, m =
2.1E-05
Ave. Velocity, V =
3
Reynolds number, Re =
lb-sec/ft2
2. Check on whether the given flow is "completely turbulent flow"
(Calculate f with the transition region equation and see if differs from the one calculated above.)
f = {-2*log10[((e/D)/3.7)+(2.51/(Re*(f1/2))]}-2
Transition Region Friction Factor, f:
f=
0.0350
Repeat calc of f using new value of f:
f=
0.0316
f=
0.0321
Repeat again if necessary:
Page 1 of 2
9,694
ft
SSY Petroleum Pte. Ltd
Attachment-A
Head Loss Calculation
Project Name
Line Identification
=
=
:
SSY-DB-FL-23-001
Rev
:
0
Sheet No :
Pembangunan 8 Sumur Produksi Dan 3 Sumur Water Disposal Lapangan Puyuh
Flowline Puyuh 6
3. Calculate hL and DPf, using the final value for f calculated in step 2
Equations: hL = f(L/D)(V2/2g)
Frictional Head Loss, hL =
Doc No
and DPf = rghL
1.20
ft
Frictional Pressure
Drop, DPf =
75
psf
Frictional Pressure
Drop, DPf =
0.52
psi
Page 2 of 2
1 of 2