SUBROUTINE BOP_StartUp()
USE VARIABLES
USE CAccumulatorVariables
USE CBopStackVariables
USE CBopControlPanelVariables
USE CEquipmentsConstants
implicit none   

integer i
    
    
!UpperRamsFailureMalf=0   
!AnnularFailureMalf=0    
!LowerRamsFailureMalf=0
!MiddleRamsFailureMalf=0
!UpperRamsLeakMalf=0
!LowerRamsLeakMalf=0
!MiddleRamsLeakMalf=0
!AnnularLeakMalf=0
!AccPupmsFailMalf=0
!AirSupplyPressureGauge=0
!======================= SETTING VARIABLES

BOP_timeCounter= 0

!============== FOR MANIFOLD VALVES CODE=====================
CALL OpenAnnular
CALL OpenUpperRams
CALL OpenMiddleRams
CALL CloseKillLine
CALL CloseChokeLine
CALL OpenLowerRams

Annular_Situation_forTD= 0       ! open - for TD code
ShearBop_Situation_forTD= 0       ! open - for TD code
PipeRam1_Situation_forTD= 0       ! open - for TD code
PipeRam2_Situation_forTD= 0       ! open - for TD code
!======================================================================

CALL LOSS_INPUTS()
!
!OPEN(50,FILE='AIRPUMP_OUTPUTS.DAT')
!OPEN(60,FILE='RAMS_OUTPUTS.DAT')
!======================================================================
!                            GET INPUTS  
!======================================================================

RAM%SuccessionCounter = 0
RAM%SuccessionCounterOld = 0

RAM%First_CloseTimecheck= 0
RAM%First_OpenTimecheck= 0



Cumulative_AirVolume= 0.0


bottle_capacity=10 !(GALON)
nobottles=NumberOfBottels







!fvr_tot=40      !(GALON)  IN CHARGED POSITION
prams_regset=1500       !RamsReglatorSet       !=1500 DEFAULT regulator set pressure (PSI)
acc_ChargedPressure=3000   !charged(PSI)
acc_MinPressure=AccumulatorMinimumOperatingPressure        !1200      !discharged(PSI)
!acc_precharge=1000


fvr_tot=(-2451*(acc_ChargedPressure**(-0.8202))+8.435)*nobottles    ! IT IS WRRITEN FOR PRECHARGE 1000 PSI FROM ITS CURVE

!write(*,*) 'fvr_tot=',fvr_tot

!ELECTRIC_PUMPON=2800
ELECTRIC_PUMPON=StartPressure
!ELECTRIC_PUMPOFF=acc_ChargedPressure    !=3000 psi
ELECTRIC_PUMPOFF=StopPressure
!QELECTRIC_PUMP=12   !(gpm)
QELECTRIC_PUMP=ElectricPumpOutput



!AIR_PUMPON=2600
AIR_PUMPON=StartPressure2
!AIR_PUMPOFF=2900
AIR_PUMPOFF=StopPressure2



RAM%tol=0.0037  !%=(2700-2600)/2700
RAM%tolzero=RAM%tol

tolAnnular=0.0018   !=(2900-2895)/2900
tolzeroAnnular=tolAnnular
!======================OTHER INPUTS(CONSTANTS)===========================
pa=300      !(PSI)
p_shear=1200  !(PSI)
!p_shear=2423.1  !(PSI)
pb=p_shear-pa
pa_annular=100 !(psi)

  


IDAnnularBase=13.625        !(inch)
IDAnnular=IDAnnularBase
ODDrillpipe_inAnnularBase=5.        ! so 18 gal is for complete closing of annular
ODDrillpipe_inAnnular=5.     ! initial
AnnularMovingPressure=360. !(psi)
IDAnnularFinal= IDAnnular


IDshearBopBase=13.625        !(inch)
IDshearBop=IDshearBopBase
ODDrillpipe_inShearRamBase=5     !initial
ODDrillpipe_inShearRam=5     !initial
IDshearBopFinal= IDshearBop

IDPipeRamBase=13.625        !(inch)
IDPipeRam1=IDPipeRamBase
ODDrillpipe_inPipeRam1Base=5     !initial
ODDrillpipe_inPipeRam1=5     !initial
IDPipeRam1Final= IDPipeRam1


IDPipeRam2=IDPipeRamBase        !(inch)
ODDrillpipe_inPipeRam2Base=5     !initial
ODDrillpipe_inPipeRam2=5     !initial
IDPipeRam2Final= IDPipeRam2

IDChokeLineBase=8.6        !(inch)
IDChokeLine=IDChokeLineBase
ODDrillpipe_inChokeLineBase=5
ODDrillpipe_inChokeLine=5

IDKillLineBase=8.6        !(inch)
IDKillLine=IDKillLineBase
ODDrillpipe_inKillLineBase=5
ODDrillpipe_inKillLine=5


!va=4   !(liter)
!vb=8  !(liter)

!cv=2;  !flow coefficinet of regulator

RAM_COURSE=320.2   !milimeter
H_REGRAM=0 !(m)<<<<<<<<<<<<<<<<<<<<<<<<
H_ShearRamBop=(GroundLevel-BlindRamHeight)*0.3048   ! foot to meter
H_PipeRam1Bop=(GroundLevel-UpperRamHeight)*0.3048   ! foot to meter
H_PipeRam2Bop=(GroundLevel-LowerRamHeight)*0.3048   ! foot to meter
H_AnnularBop=(GroundLevel-AnnularPreventerHeight)*0.3048   ! foot to meter
H_ChokeLineBop=(GroundLevel-KillHeight)*0.3048   ! foot to meter
H_KillLineBop=(GroundLevel-KillHeight)*0.3048   ! foot to meter


p_acc=acc_ChargedPressure
RAM%vdis_bottles=0   !initial discharged volume
fvr=fvr_tot
RAMS%minloss=0.

!======================AIRPUMP INPUTS(CONSTANTS)===========================

RAM%FVR_AIR=0
P_AIRP=0

ba1=1003; ba2=.03375; ba3=4.014; ba4=.2458
bba1 =31.8; bba2 =-725.7 ; bba3 =4154

Qiter=7  !(gpm)

! Q=0.0003585; true


DeltaT_BOP=0.1 !second
tol_air=.08

alpha_Qair=0
alpha_timeair=0
alpha_paccair=p_acc
alpha_pairp=p_acc
alpha_diffpair=0
alpha_lossesair=0
alpha_fvrair=0

counter_airp=1

!======================BOP INPUTS(CONSTANTS)===========================

    if (PrechargePressure == 1400.) then
        b1=1396; b2=0.17; b3=3.873; b4=1.101
    elseif (PrechargePressure == 2000.) then
        b1=1980; b2=0.1237; b3=15.69; b4=1.029
    elseif (PrechargePressure == 600.) then
        b1=591.9; b2=0.1968; b3=2.887; b4=0.9757
    else !(PrechargePressure == 1000.) then  ! this is for precharge=1000 psi
        b1=993.7; b2=0.164; b3=5.492; b4=0.9796 
    endif
    
ByPassOld= 1.0

RAM%p_bop=pa
p_annular=pa_annular
!Q=0.0055;  !initial flow rate (m^3/s)
RAM%flow=60  !(gpm) initial value
RAM%Qzero=70    !for DP code, increasing Q after shear
RAM%vdis_tot=0
airp_switch=0 !off position
elecp_switch=0  !off position
ShearBop_closed=1
PipeRam1_closed=1
PipeRam2_closed=1
ChokeLine_closed=1
KillLine_closed=1
Annular_closed=1
finished_Shear=0
finished_pipe1=0
finished_pipe2=0
finished_ChokeLine=0
finished_KillLine=0
finished_Annular=0
deltav_elecp=0
RAM%vdis_elecp=0
!==================================================================
RAM%timecounter_ram=0
RAM%Q=0
pram_reg=prams_regset   !psi       !RamsReglatorSet
Pannular_reg=min(AnnularRegulatorSetControl,1700.)




MiddleRamsStatus= IDshearBop
UpperRamsStatus= IDPipeRam1
LowerRamsStatus= IDPipeRam2
AnnularStatus = IDAnnular


AccumulatorPressureGauge = p_acc


RAM%time=0

!         WRITE(60,10) '  Overal Time','Q Ram Line','Vdis Ram Line','P Accumulator','Preg Ram Line','Preg Annular','   P BOP','ID Shear Ram', &
!             'ID Pipe Ram1','ID Pipe Ram2','ID Annular'
!10       FORMAT(11(A18))
!
!
!
!         WRITE(60,60) RAM(2)%time,RAM(2)%Q,RAM(2)%vdis_tot,p_acc, &
!         pram_reg,Pannular_reg,RAM(2)%p_bop,IDshearBop, &
!         IDPipeRam1,IDPipeRam2,IDAnnular
!60       FORMAT(11(f18.5))


      MiddleRamsOpenLED = LedOn
      MiddleRamsOpenLEDMine = LedOn
      MiddleRamsCloseLED = LedOff
      MiddleRamsCloseLEDMine = LedOff
         ShearRamIsOpening = .false.
         ShearRamIsClosing = .false.

      UpperRamsOpenLED = LedOn
      UpperRamsOpenLEDMine = LedOn
      UpperRamsCloseLED = LedOff
      UpperRamsCloseLEDMine = LedOff
         PipeRam1IsOpening = .false.
         PipeRam1IsClosing = .false.         
         
      LowerRamsOpenLED = LedOn
      LowerRamsOpenLEDMine = LedOn
      LowerRamsCloseLED = LedOff
      LowerRamsCloseLEDMine = LedOff
         PipeRam2IsOpening = .false.
         PipeRam2IsClosing = .false.  
         
      ChokeLineOpenLED = LedOff
      ChokeLineOpenLEDMine = LedOff
      ChokeLineCloseLED = LedOn
      ChokeLineCloseLEDMine = LedOn
         ChokeLineIsOpening = .false.
         ChokeLineIsClosing = .false. 
         
         
      KillLineOpenLed = LedOff
      KillLineOpenLedMine = LedOff
      KillLineCloseLed = LedOn
      KillLineCloseLedMine = LedOn
         KillLineIsOpening = .false.
         KillLineIsClosing = .false.         
         
         
      AnnularOpenLed = LedOn
      AnnularOpenLedMine = LedOn
      
      AnnularCloseLed = LedOff
      AnnularCloseLedMine = LedOff
      
         AnnularIsOpening = .false.
         AnnularIsClosing = .false.  
           
         
         FirstSet=1
         RamsFirstSet=1
         ManifoldPressureGauge=prams_regset        !RamsReglatorSet         
         AnnularPressureGauge= (1 - AnnularPressureGaugeMalf) * min(AnnularRegulatorSetControl,1700.)
         
         
PannularTimeStepDelay = int(1./DeltaT_BOP)       ! 1/0.1 : for 1 sec delay in AnnRegulator shot time

    DO i = 1 , PannularTimeStepDelay
        CALL Pannular_regDelay%AddToFirst(AnnularPressureGauge)
    END DO         
         
         
         
    end