Worksheet (2)PIPELINE FROM NAVEENA INDUSTRIES TO TBS-SECTOR 51-B KORANGI

PbBase pressure, psia14.65PbBase pressure, psia14.65TbBase temperature, R520TbBase temperature, R520TfFlow temperature, R540TfFlow temperature, R540P1Inlet pressure, psia(Assumed to be 120 psig)134.65P1Inlet pressure, psia(Assumed to be 120 psig)134.65P2Outlet pressure, psia(Assumed to be 110 psig)124.65P2Outlet pressure, psia(Assumed to be 110 psig)124.65GGas specific gravity0.612GGas specific gravity0.612ZCompressibility factor at average conditions (assumed)0.99ZCompressibility factor at average conditions (assumed)0.99LLength of pipe, miles (assumed)1.6772.69997kmLLength of pipe, miles (assumed)1.667DInternal diameter of pipe, in15.56DInternal diameter of pipe, in15.56QbFlow at base conditions, (ft3/day)QbFlow at base conditions, (ft3/day)Decrease in flowQbWeymouth50,522,978QbWeymouth50,674,290(151,312)QbPanhandle A60,160,475QbPanhandle A60,354,799(194,324)QbPanhandle B63,704,294QbPanhandle B63,898,904(194,610)

PavgAverage Pressure (psia)129.7PavgAverage Pressure (psia)129.7TavgAverage Temperature, R530.0TavgAverage Temperature, R530.0uVelocity of gas at Pavg and Tavg (ft/sec)uVelocity of gas at Pavg and Tavg (ft/sec)Using Weymouth flow50Using Weymouth flow51Using Panhandle A flow60Using Panhandle A flow60Using Panhandle B flow64Using Panhandle B flow64umaxMaximum or Erosional Velocity156umaxMaximum or Erosional Velocity156

In order to keep the flow constant the pipe diameter has to be increasedPbBase pressure, psia14.65TbBase temperature, R520SONIC FLOW VELOCITY20.4096126269TfFlow temperature, R540P1Inlet pressure, psia(Assumed to be 15 psig)29.65P2Outlet pressure, psia(Assumed to be 5 psig)19.65GGas specific gravity0.612ZCompressibility factor at average conditions (assumed)0.99LLength of pipe, miles (assumed)5QbFlow at base conditions, (ft3/day)QbWeymouth3,126,880,835QbPanhandle A5,348,368,279QbPanhandle B4,323,860,037DInternal Diameter of pipe, inDUsing Weymouth122.00DUsing Panhandle A124.00DUsing Panhandle B126.00124Averagei.e Pipe with an OD of 30" Can segmental looping be applied here??PavgAverage Pressure (psia)25.0TavgAverage Temperature, R540.0uVelocity of gas at Pavg and Tavg (ft/sec)Using Weymouth flow2Using Panhandle A flow3Using Panhandle B flow2

Formulae usedThe velocity of gas in the pipeline Erosional Velocity

0.0021220659

umaxMaximum or Erosional Velocity (ft/sec)The flow may be calculated from any one of the following equations described below:ZCompressibility factorWeymouth EquationRGas Constant, 10.73 ft3 psia/lb-moleRTGas Temperature RGgas gravityPGas Pressure, psiaPanhandle - A EquationPanhandle - B Equation