Pressure Drop Calc. v.1

8/7/2019 Pressure Drop Calc. v.1

http://slidepdf.com/reader/full/pressure-drop-calc-v1 1/40

4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

T = 30.000 489.670

P = 30.000 psig = 44.700 psia

0.485 mmscfd

0.246

0.049

0.076

S = 0.648

Z = 0.650

Act. Gas flow = 67.780 acfm

W = 1.000 1000lb/hr

From fig 17.8, GPSA Vol 11

0.001


1.590

0.006 psi/100ft

∆P at Gas Flow Horizontal Plant Piping based on Simplified of Darcy formula in GPSA Vol.1

ODpipe

=

IDpipe

=

oF = oR

Qg

=

ρVapor

= lb/ft3

ρvat stdard = lb/ft3

ρAir

= lb/ft3

C1

=

C2

=

∆P100

=



1, Section 17



8.63 in = 0.219 m

Wall thk = 0.500 in = 0.013 m

7.625 in

Length = 100.00 ft = 0.019 mile


0.00015 ft

0.00023

T = -38.320 421.350

P = 267.00 psig = 281.700 psia

32.2

3.000 mmscfd

1.820

0.062

0.076

S = 0.811

0.009 cP = 0.000006 lb/ft.sec

Z = 0.805

3.727 fps ~ 3.727 fps

693,697 Turbulance


W = 7.743 1000lb/hr

Laminar Flow

0.00009

0.00002

Poiseuille's law for laminar flow

0.00004 psi

Turbulance Flow


0.01534

0.00384

Darcy-Weisbach equation

0.00658 psi

∆P at Gas Flow Horizontal Piping based on Re, GPSA Vol.11, Section 17

ODpipe

=

IDpipe

=

ε =

ε/D =

oF = oR

gc

= (ft.lbm)/(lbf.s2)

Qg

=

ρVapor

= lb/ft3


ρAir

= lb/ft3

µVapor

=

Vg

=

Re

=

f m

=

f f =

∆Pf =

f m

=

f f =

∆Pf =



8.63 in = 0.219 m

Wall thk = 0.500 in = 0.013 m

7.625 in

Length = 100.00 ft = 0.019 mile

T = -38.320 421.350P = 267.00 psig = 281.700 psia

32.2

3.000 mmscfd

1.820

0.062

0.076

S = 0.811

0.009 cP = 0.000006 lb/ft.sec

Z = 0.8053.727 fps ~ 3.727 fps

693,697 Turbulance


W = 7.743 1000lb/hr

From fig 2.3, API RP 14E

0.01534

0.00384

281.6934 psia

0.00659 psi

0.00659 psi

∆P at Gas Flow Horizontal Piping based on Re, API RP 14E

ODpipe

=

IDpipe

=

oF = oR

gc

= (ft.lbm)/(lbf.s2)

Qg

=

ρVapor

= lb/ft3


ρAir

= lb/ft3

µVapor

=

Vg

=

Re

=

f m

=

f f =

General ∆P eq.

P2

=

∆P=Approximate ∆P eq.

∆P=



4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

Length = 213.00 ft = 0.040 mileFrom fig 17.3, GPSA Vol 11

0.00015 ft

0.00051

T = 30.000 489.670

P = 30.000 psig = 44.700 psia

32.2

275.000 bpd

42.659

62.400

S.G. = 0.6840.437 cP = 0.000294 lb/ft.sec

0.269 fps ~ 0.267 fps

11401.261 Turbulance

W = 2.742 1000lb/hr

HORIZONTAL PIPING

Laminar Flow

0.00561

0.00140

Poiseuille's law for laminar flow

0.00137 psiTurbulance Flow


0.01667

0.00417

Darcy-Weisbach equation

0.00406 psi

VERTICAL PIPING

Elevation = 20.0000 ft

5.921 psi

∆P at Liquid Flow Piping based on Re, GPSA Vol.11, Section 17

ODpipe

=

IDpipe

=

ε =

ε/D =

oF = oR

gc

= (ft.lbm)/(lbf.s2)

Ql=

ρLiquid

= lb/ft3

ρWater

= lb/ft3

µLiquid

=

Vl=

Re

=

f m

=

f f =

∆Pf =

f m

=

f f =

∆Pf =

∆Pe

=



4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

0.00015 ft0.00051

T = 30.000 489.670

P = 30.000 psig = 44.700 psia

32.2

275.000 bpd = 8.021 usgpm

42.659

62.400

S.G. = 0.684

0.437 cP = 0.000294 lb/ft.sec

0.269 fps ~ 0.267 fps


W = 2.742 1000lb/hr

Laminar Flow

0.00561

0.00140

Turbulance Flow


0.01667

0.00417

0.00417

0.0019 psi/100ft

∆P at Liquid Flow Piping based on Re, GPSA Vol.11, Section 17

ODpipe

=

IDpipe

=

ε =ε/D =

oF = oR

gc

= (ft.lbm)/(lbf.s2)

Ql=

ρLiquid

= lb/ft3

ρWater

= lb/ft3

µLiquid

=

Vl=

Re

=

f m

=

f f =

f m

=

f f =

f f =

∆P100

=



4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

T = 30.000 489.670P = 30.000 psig = 44.700 psia

32.2

275.000 bpd = 8.021 usgpm

42.659

62.400

S.G. = 0.684

0.437 cP = 0.000294 lb/ft.sec

0.269 fps ~ 0.267 fps


W = 2.742 1000lb/hr

From fig 2.3, API RP 14E

0.02800

0.00700

0.0032 psi/100ft

∆P at Liquid Flow Piping based on Re, API RP 14E

ODpipe

=

IDpipe

=

o

F =o

R

gc

= (ft.lbm)/(lbf.s2)

Ql=

ρLiquid

= lb/ft3

ρWater

= lb/ft3

µLiquid

=

Vl=

Re

=

f m

=

f f =

∆P100

=



4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

Length = 213.00 ft = 0.040 mile

3.500 in Dukler Frictional Pressure Drop42.659 0.040

62.400 0.027 cP =

0.246 0.040

0.076 1.962

0.437 cP = 0.000294 lb/ft.sec 0.362 fps

0.010 cP = 0.000007 lb/ft.sec 8.592 fps

18.725 dyne/cm 8.954 fps

72.400 dyne/cm279036.4

0.024 From fig 17.18, GPSA Vol 11

0.574 0.0500

Flow Regime at Horizontal 1.635

0.362 fps 0.362 fps

8.592 fps 8.592 fps

From fig 17.15, GPSA Vol 11 8.954 fps

Flow Regime at = Stratified Flow 232543.5


0.0600

0.015

y = 3.207

2.525

0.396 psi

ODpipe

=

IDpipe

=

ρLiquid

= lb/ft3 λ =

ρWater

= lb/ft3 µn

=

ρVapor

= lb/ft3 Trial, HLd

=

ρAir

= lb/ft3 ρk

= lb/ft3

µLiquid

= VsL

=

µVapor

= VsG

=

σLiquid

= Vm

=

σWater

= Rey

=

QLiquid

= ft3/sec

QVapor

= ft3/sec HLd

=

ρk

= lb/ft3

VsL

= VsL

=

VsG

= VsG

=

Vm

=

Rey

=

HLd

=

f n

=

f tpr

=

∆Pf =



4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

Elevation = 41.00 ft

alc. at Horizontal 3.500 in42.659

0.000018 lb/ft.sec 62.400

0.246

0.076

0.437 cP = 0.000294 lb/ft.sec Flaniga

0.010 cP = 0.000007 lb/ft.sec

18.725 dyne/cm

72.400 dyne/cm0.024

0.574

Flow Regime at Vertical

1.275

1.882

0.362 fps

8.592 fps

0.462 fps

16.169 fps


Flow Regime at = Fronth Flow

ODpipe

=

IDpipe

=

ρLiquid

= lb/ft3

ρWater

= lb/ft3

ρVapor

= lb/ft3

ρAir

= lb/ft3

µLiquid

=

µVapor

= HLf

=

σLiquid

= ∆Pe

=

σWater

=

QLiquid

= ft3/sec

QVapor

= ft3/sec

YA

=

XA

=

VsL

=

VsG

=

NY

=

NX

=



4.5 in = 0.114

Wall thk = 0.5 in = 0.013

30.000 psia

14.730 psia213.00 ft = 0.040

3.500 in

42.659

0.246

Elevation Pressure Drop Calc. at Vertical 0.024

0.260 0.574

3.162 psi 0.437 cP = 0.000294

18.725 dynes/cmEaton holdup correlation, for better liquid hol

0.362 fps

8.592 fps

0.863

20.457

4.434

0.0030

0.046


0.1300

0.013 0.096

ODpipe

=

Pavg

=

Pb

=

Lm

=

IDpipe

=

ρLiquid

= lb/ft3

ρVapor

= lb/ft3

QLiquid

= ft3/sec

QVapor

= ft3/sec

µLiquid

=

σ =

VsL

=

VsG

=

NLV

=

NGV

=

Nd

=

NL

=

NE

=

HLe

=

IL

= ft3 =



m

m

mile

lb/ft.sec

ldup determination in liquid inventory calc.

USgallon



Equation at Surface Prod. Opr. Vol.1, Ken Arnold and Maurice Sterwart for Hori

4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

Length = 100.00 ft = 0.019 milef = 0.015

T = 30.000 489.670

P = 30.000 psig = 44.700 psia

0.200 mmscfd

0.246

0.049

0.076

S = 0.648

Z = 0.650

275.000 bpd

42.659

62.400

S.G. = 0.684

R = 727.273

W = 3156.829 lb/hr

1.814

0.053 psi

ODpipe

=

IDpipe

=

oF = oR

Qg

=

ρVapor

= lb/ft3


ρAir

= lb/ft3

Ql =

ρLiquid

= lb/ft3

ρWater

= lb/ft3

ft3/bbl

ρm

= lb/ft3

∆P =



ontal Pressure drop Calc.



Equation at API RP 14E for Horizontal Pressure Drop Calc.

4.5 in = 0.114 m

Wall thk = 0.5 in = 0.013 m

3.500 in

f = 0.015

T = 30.000 489.670

P = 30.000 psig = 44.700 psia

0.200 mmscfd

0.246

0.049

0.076

S = 0.648

Z = 0.650

275.000 bpd

42.659

62.400

S.G. = 0.684

R = 727.273

W = 3156.829 lb/hr

1.814

0.056 psi/100ft

ODpipe

=

IDpipe

=

oF = oR

Qg

=

ρVapor

= lb/ft3


ρAir

= lb/ft3

Ql=

ρLiquid = lb/ft3

ρWater

= lb/ft3

ft3/bbl

ρm

= lb/ft3

∆P100

=

Pressure Drop Calc. v.1

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