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Sales Gas Pipeline Part II. Ref.1: Ikoku, Natural Gas Production Engineering, John Wiley & Sons, 1984, Chapter 7. Ref.2: Menon, Gas Pipeline Hydraulic, Taylor & Francis , 2005, Chapter 3. Single Phase Gas Flow Series Pipeline with Elevation Change. P 4. P 2. d 4 , L 4. D Z 4.

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Sales gas pipeline part ii

Sales Gas PipelinePart II

Ref.1: Ikoku, Natural Gas Production Engineering, John Wiley & Sons, 1984, Chapter 7.

Ref.2: Menon, Gas Pipeline Hydraulic, Taylor & Francis, 2005, Chapter 3.


Single phase gas flow series pipeline with elevation change
Single Phase Gas FlowSeries Pipeline with Elevation Change

P4

P2

d4 , L4

DZ4

d1 , L1

d3 , L3

d2 , L2

P5

DZ1

DZ3

DZ2

P1

P3


Single phase gas flow series pipeline with elevation change1
Single Phase Gas FlowSeries Pipeline with Elevation Change


Single phase gas flow series pipeline with elevation change2
Single Phase Gas FlowSeries Pipeline with Elevation Change


Single phase gas flow series pipeline with elevation change3
Single Phase Gas FlowSeries Pipeline with Elevation Change


Single phase gas flow series pipeline with elevation change4
Single Phase Gas FlowSeries Pipeline with Elevation Change


Single phase gas flow parallel pipeline with elevation change
Single Phase Gas FlowParallel Pipeline with Elevation Change

LeA , dA , qA

LeB , dB , qB

P1

P2

LeC , dC , qC


Single phase gas flow parallel pipeline with elevation change1
Single Phase Gas FlowParallel Pipeline with Elevation Change


Single phase gas flow looped pipeline with elevation change
Single Phase Gas FlowLooped Pipeline with Elevation Change

LeB , dB , qB

LeA , dA , qA

Px

LeC , dC , qC

P1

P2


Single phase gas flow looped pipeline for increasing capacity
Single Phase Gas FlowLooped Pipeline For Increasing Capacity

LeB , dB , qB

LeA , dA , qA

Px

LeC , dC , qC

P1

P2


Single phase gas flow looped pipeline for increasing capacity1
Single Phase Gas FlowLooped Pipeline For Increasing Capacity

LeB , dB , qB

LeA , dA , qA

Px

LeC , dC , qC

P1

P2


Single phase gas flow optimum diameter of looped pipeline
Single Phase Gas FlowOptimum Diameter of Looped Pipeline

LeB , dB , qB

LeA , dA , qA

Px

LeC , dC , qC

P1

P2

Assume that the cost of a pipe with one inch diameter and one foot length is Cbase


Single phase gas flow example 1 description
Single Phase Gas FlowExample 1: Description

P4

P2

d4 , L4

DZ4

d1 , L1

d3 , L3

d2 , L2

P5

DZ1

DZ3

DZ2

P1

P3

  • For the above pipeline, calculate the exit pressure of each segments (P2, P3, P4, P5) based on Weymouth equation and Hysys software.

  • Feed specifications:

    • T1=50 oF, P1=1000 psia, qsc=200 MMscfd, C1=90%, C2=10% (mole)

  • Pipeline specifications:

    • L1=20 km, ΔZ1=2000 m, L2=30 km, ΔZ2=-500, L3=15 km, ΔZ3=600, L4=50 km, ΔZ4=-800, d1= d2= d3= d4= 20 in, T5=35 oF, E=0.95(in Weymouth)


Single phase gas flow example 1 solution
Single Phase Gas FlowExample 1: Solution

Hysys


Single phase gas flow example 1 solution1
Single Phase Gas FlowExample 1: Solution

Hysys

Hysys

Hysys


Single phase gas flow example 2 description
Single Phase Gas FlowExample 2: Description

LB , dB

LA , dA

Px

LC , dC

P1

P2

  • An old pipeline has the following specification:

  • Feed specifications:

    • T1=50 oC, P1=1000 psia, qold =1500 MMscfd, C1=90%, C2=10% (mole)

  • Pipeline specifications:

    • LA+LC =100 km, ΔZ=0, dA= dC= 42 in, T2=42 oC, E=0.95(in Weymouth)

  • Calculate the outlet pressure (P2)

  • The pipeline capacity is increased by 25% (qnew=1875 MMscfd). Calculate the optimum length and diameter of the looped pipeline.


Single phase gas flow example 2 solution
Single Phase Gas FlowExample 2: Solution


Single phase gas flow example 2 solution1
Single Phase Gas FlowExample 2: Solution


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