SUBROUTINE NormalCirculation_StartUp()     ! is called in module FluidFlowMain
    
    USE MudSystemVARIABLES
    use CTanksVariables
    USE CMudPropertiesVariables
    Use GeoElements_FluidModule
    Use KickVariables
    Use CUnityOutputs
    Use CShoeVariables
    USE Pump_VARIABLES
    
    implicit none
    
    ! temporary varibales for solving pressure jerks -- 1399-11-09 
    !Pump1BlownInTimeStep = 0
    !Pump2BlownInTimeStep = 0
    !Pump3BlownInTimeStep = 0
    
    !Pump1BlownStarted = .FALSE.
    !Pump2BlownStarted = .FALSE.
    !Pump3BlownStarted = .FALSE.
    
    Pump1BlownCount = 0
    Pump2BlownCount = 0
    Pump3BlownCount = 0
    
    
DeltaWellCap=0.
WellCapOld =  0. 
AnnCapOld=0.
DeltaAnnCap=0.
    
    
    Total_Stroke_Counter_For_Plot = 0.0

        DeltaT_Mudline=0.1 !second
    
                     Call Set_FlowKellyDisconnect(.false.)
                     Call Set_FlowPipeDisconnect(.false.)
                     
!HZ_ADD= 0.d0
Flow_timeCounter= 0
MudSys_timeCounter= 0
FluidFlowCounter = 0
!========================================================================
!                       MUD CIRCULATION STARTUP
!========================================================================
                     
         FormationLostPressure= LeakOff * ShoeDepth  
         ShoeFractured= .false.
         
        UGBOSuccessionCounter = 0   ! also in starup
        UGBOSuccessionCounterOld = 0   ! also in starup
         
                     
                     
        ChokeLineFlowRate= 0.0
        StringFlowRate= 0.0
        AnnulusFlowRate= 0.0
        
        MudVolume_InjectedFromAnn= 0.D0
        MudVolume_InjectedToBH= 0.D0
                     
        DensityMixTol= 0.1     !(ppg)
        CuttingDensityMixTol= 0.5
        NewPipeFilling= 1
        UtubeFilling= 1
        UtubeEmptyVolume= 0.0
        
        UtubeMode1Activated= .false.
        UtubeMode2Activated= .false.
        UtubePossibility= .false.
        
        
        !KickMigration_2SideBit = .FALSE.
        
        KickDx= (AutoMigrationRate/3600.)*DeltaT_Mudline                !AutoMigrationRate (ft/h)= ft per DeltaT_Mudline
        

        NewInfluxElementCreated= 0
        NewInfluxNumber= 0
        
        !KickVolumeinAnnulus= 0.0
        KickDeltaVinAnnulus= 0.0
        GasKickPumpFlowRate= 0.0
        
        FirstMudSet= 0
        FirstSetUtube1=0
        FirstSetUtube2=0
        SuctionMud=1
        ImudCount= 1
        imud=1
        iLoc= 1 ! for Kick

        Suction_Density_MudSystem= ActiveDensity
        SuctionDensity_Old= ActiveDensity       ! initial(ppg)        
        StringDensity_Old= ActiveDensity       ! initial(ppg)
        AnnulusSuctionDensity_Old= ActiveDensity       ! initial(ppg)
        ChokeLineDensity_Old= ActiveDensity       ! initial(ppg)
        
        TotalAddedVolume= 0.


        xx=0.


    
    END SUBROUTINE NormalCirculation_StartUp
    
    
   
    
    
    
    
    SUBROUTINE MudSystem_StartUp()
    USE CMudPropertiesVariables
    USE MudSystemVARIABLES
    USE CDataDisplayConsoleVariables
    USE CHOKEVARIABLES
    USE Pump_VARIABLES
    USE CBopStackVariables
    USE CPumpsVariables
    use CTanksVariables
    USE KickVariables
    implicit none 
   
    
    
    
    
    CALL MUDLINE_LOSS_INPUTS()

!Total_Pump_Gpm=10. ! Initial Value
    MUD%Q=0. ! Initial Value
    
    Q_flow32=0.
    Q_flow33=0.
    Q_flow34=0.
    Q_flow35=0.
    
    DeltaT_Mudline=0.1 !second
    
    GasKickPumpFlowRate= 0.
    BellNippleVolume= 0.
    BellNippleDensity= 0.
    MudBucketVolume= 0.
    MudBucketDensity= 0.
    BellNippleDumpVolume= 0.
    !BellNippleDumpRate= 0.
    !BellNippleToPitsRate= 0.0
    MudChecked= .true.
    
    condition32Final= .TRUE.
    condition33Final= .TRUE.
    condition34Final= .TRUE.
    
 
PressureGauge75= 0.0
PressureGauge76 = 0.0

    
!!====================================================================== 
!!                           TRIP TANK
!!======================================================================
        
    TripTank_MinVol_Allowded= 50.*42.       !(bbl to gal, initial value)
    TripTank_MaxVol_Allowded= 50. *42.      !(bbl to gal, initial value)
    
    
ActiveTankFloorArea= (ActiveTotalTankCapacityGal) / (7.48051948*100./12.)     ! (ft^2)  -     Tank Height= 100 inch , 12=inch to ft       7.48051948=gal to ft^3
TripTankFloorArea= (50.*42.) / (7.48051948*100./12.)     ! (ft^2)   -     50.*42.=Trip Tank Capacity in BBl*42= Gal ,   Tank Height= 100 inch , 12=inch to ft       7.48051948=gal to ft^3



TripTank_Vol= InitialTripTankMudVolumeGal       !(gal)
TripTank_Dens= 1.
TripTankGauge=0.



ReturnToTrip_Q= 1.
ActiveToTrip_Q= 1.


TripTankPump_Q= .8


ReturnToTrip_Dens=1.0     ! ppg(lbm/gal)
ActiveToTrip_Dens=1.0

!!====================================================================== 
!!                           MUD VOLUME TOTALIZER
!!======================================================================

Mp1Density= 0.0 !(VALVE82)
Mp2Density= 0.0 !(VALVE83)
Mp3Density= 0.0 !(VALVE84)


ReserveTankVolume= ReserveMudVolumeGal   ! initial volume  (gal)
ReserveTankDensity= ReserveDensity   ! initial



CementTankVolumeCalc= CementTankVolume          !movaghat--- initial volume  (gal)
CementTankDensityCalc= CementTankDensity       !movaghat--- initial

PumpsDumpVolume=0.0 
PumpsDumpFlowRate= 0.0
    


ActiveTankVolume= ActiveMudVolumeGal   ! initial volume  (gal)
RefrencePitVolume= ActiveTankVolume/42.    !(bbl)
RefrencePitVolume_DrillWatch= ActiveTankVolume/42.    !(bbl)

MVT_MinVol_Allowded= 0.
MVT_MaxVol_Allowded= 0.

MudTank1_vol= ActiveMudVolumeGal/3.       ! (gal)
MudTank2_vol= ActiveMudVolumeGal/3.       ! (gal)
MudTank3_vol= ActiveMudVolumeGal/3.       ! (gal)
ActiveTankSettled= ActiveSettledContentsGal ! (gal)
MudTank4_vol= InitialTripTankMudVolumeGal       ! (gal)

TripTankVolumeCalc= InitialTripTankMudVolumeGal   ! initial volume  (gal)
ActiveTankDensity= ActiveDensity       ! initial(ppg)
TripTankDensityCalc= TripTankDensity       ! initial(ppg)

ChokeManifoldDumpVolume= 0.0

PitGainLossZero= 0.
PitGainLossZero_Old= PitGainLossZero
MVTCoarseKnob_Old= MVTCoarseKnob
MVTFineKnob_Old= MVTFineKnob
FirstSet_Time= .true.



PedalMeter= PedalFlowMeter    !1600. !(gpm)
ReturnFlowRate=0.



                  TotalStrokes1MFFI =0.
                  TotalStrokes2MFFI =0.

            TotalStrokesPump1=0.
            TotalStrokesPump2=0.
            GraphTotalStrokes=0.
            
            
                  TotalStrokes1 =0.
                  TotalStrokes2 =0.
            
            
            



    end
    
    
    
    
    
    
    
    
    
    
    
SUBROUTINE MUDLINE_LOSS_INPUTS()
USE MudSystemVARIABLES
USE CBopStackVariables
USE CPumpsVariables
implicit none
INTEGER I    
    
           
            
!===========================================================================
!                   	MUDLINE MINOR LOSSES INPUT
!===========================================================================        
            
NO_MudMinors=4       

ALLOCATE (MudMinors(NO_MudMinors,4))

!                       ID(INCH)     LF	      CV	    NOTE(BAR)       DESCRIPTION
MudMinors(1,1)= MudPump1Output
MudMinors(1,2:4)=    (/1.5*8.,     0.,	    0./)      !elbow   (MLnumber=1,,PumpsToString)
MudMinors(2,1)= MudPump1Output
MudMinors(2,2:4)=    (/1.5*6.,     0.,	    0./)      !elbow   (MLnumber=2,,STGaugeToString)  
MudMinors(3,1:4)=    (/0.,        0.,     0.,	    0./)      !elbow   (MLnumber=3,,WellToPits)
MudMinors(4,1)= ChokeLineId
MudMinors(4,2:4)=    (/1.5*7.,     0.,	    0./)      !elbow   (MLnumber=4,,WellToChokeManifold) 


            
ALLOCATE (MINORDIAMETER_MUDLINE(NO_MudMinors),AREAMINOR_MUDLINE(NO_MudMinors),LF_MUDLINE(NO_MudMinors),CV_MUDLINE(NO_MudMinors)  &
            ,NOTE_MUDLINE(NO_MudMinors))



DO I=1,NO_MudMinors 
    MINORDIAMETER_MUDLINE(I)=MudMinors(I,1)
    LF_MUDLINE(I)=MudMinors(I,2)
    CV_MUDLINE(I)=MudMinors(I,3)
    NOTE_MUDLINE(I)=MudMinors(I,4)
    
    
    AREAMINOR_MUDLINE(I)=PII*(MINORDIAMETER_MUDLINE(I)*0.0254)**2/4.   !D(in), AREA(m^2)
ENDDO            
            
!===========================================================================
!                   	MUDLINE PIPNING LOSSES INPUT
!===========================================================================
NO_PIPINGSMUDLINE=4

ALLOCATE (PIPINGS_MUDLINE(NO_PIPINGSMUDLINE,3))

            !               ID(INCH)	L(FEET)	ROUGHNESS(MM)=e     DESCRIPTION	
PIPINGS_MUDLINE(1,1)= MudPump1Output
PIPINGS_MUDLINE(1,2:3)=		 (/265.,		0.03/)          !(MLnumber=1,,PumpsToString)
PIPINGS_MUDLINE(2,1)= MudPump1Output
PIPINGS_MUDLINE(2,2:3)=		 (/100.,       0.03/)          !(MLnumber=2,,STGaugeToString)
PIPINGS_MUDLINE(3,1:3)=		 (/0.,		0.,          0./)          !(MLnumber=3,,WellToPits)
PIPINGS_MUDLINE(4,1)= ChokeLineId
PIPINGS_MUDLINE(4,2)= ChokeLineLength
PIPINGS_MUDLINE(4,3)= 0.03          !(MLnumber=4,,WellToChokeManifold)

Area_ChokeLineFt= PII*((ChokeLineId/12.)**2)/4.   !D(in), AREA(ft^2)
ChokeLine_VolumeCapacity= Area_ChokeLineFt* ChokeLineLength* 7.48051948      ! (gal)

 ALLOCATE (DIAM_MUDLINE_INCH(NO_PIPINGSMUDLINE),  &
            AREA_MUDLINE(NO_PIPINGSMUDLINE),LENGT_MUDLINE(NO_PIPINGSMUDLINE),ROUGHNESS_MUDLINE(NO_PIPINGSMUDLINE),RELROUGH_MUDLINE(NO_PIPINGSMUDLINE))


DO I=1,NO_PIPINGSMUDLINE
    DIAM_MUDLINE_INCH(I)=PIPINGS_MUDLINE(I,1)
    LENGT_MUDLINE(I)=PIPINGS_MUDLINE(I,2)
    ROUGHNESS_MUDLINE(I)=PIPINGS_MUDLINE(I,3)
    
    
    
    AREA_MUDLINE(I)=PII*(DIAM_MUDLINE_INCH(I)*0.0254)**2/4   !D(in), AREA(m^2)
    RELROUGH_MUDLINE(I)=ROUGHNESS_MUDLINE(I)/(DIAM_MUDLINE_INCH(I)*25.4)    !e/D
    !DIAM_MUDLINE_MM(I)=DIAM_MUDLINE_MM(I)*.001  !  (m)
    LENGT_MUDLINE(I)=LENGT_MUDLINE(I)*.3048      !  (m) 
ENDDO 


!===========================================================================
!                   	MUDLINE STATIC LOSSES INPUT
!===========================================================================  

! Height are in (meter)
Pumps_Height= 0.
STpipeGauge_Height= 2. !(m)
Pits_Height= 1. !(m)
ChokeManifold_Height= 1.*0.3048  !(ft  to meter)
WellChokeExit_Height= GroundLevel-KillHeight












        
    END  
    
    

    
    SUBROUTINE MUDLINE_LOSSES(MLnumber) 
    
    USE MudSystemVARIABLES 
   implicit none 
    integer  I
    INTEGER MLnumber    
    
    
!===============================PIPE LOSS===================================  
 MUD(MLnumber)%Re_MUDline=MUD(MLnumber)%Q*6.30902e-5*DIAM_MUDLINE_INCH(MLnumber)*0.0254/(AREA_MUDLINE(MLnumber)*MUD(MLnumber)%nu)    !<<<<<< nu: DOROST SHAVAD.ALAN DAR STARTUP SET SHODE
!write(*,*) 'MUD(MLnumber)%Re_MUDline=' , MUD(MLnumber)%Re_MUDline
!   Q*6.30902e-5   for (gpm) to (m^3/sec)
     if ( MUD(MLnumber)%Re_MUDline<Re_cr) then
          MUD(MLnumber)%fric=64/ MUD(MLnumber)%Re_MUDline
     else

         MUD(MLnumber)%fric=1/(-1.8*log10((RELROUGH_MUDLINE(MLnumber)/3.7)**1.11+6.9/ MUD(MLnumber)%Re_MUDline))**2
     endif

 MUD(MLnumber)%fricloss=((MUD(MLnumber)%fric*(wdens*MUD(MLnumber)%Mud_SG*LENGT_MUDLINE(MLnumber)*(MUD(MLnumber)%Q*6.30902e-5/AREA_MUDLINE(MLnumber))**2))/(2*DIAM_MUDLINE_INCH(MLnumber)*0.0254))/6895


!==============================MINOR LOSS===================================  

    if (LF_MUDLINE(MLnumber)/=0) then
         MUD(MLnumber)%minlosspa_MUDLINE=LF_MUDLINE(MLnumber)*wdens*MUD(MLnumber)%Mud_SG*(MUD(MLnumber)%Q*6.30902e-5/AREAMINOR_MUDLINE(MLnumber))**2/2  !(Pa)
         MUD(MLnumber)%minloss_MUDLINE= MUD(MLnumber)%minlosspa_MUDLINE/6895 !(psi)
    elseif (CV_MUDLINE(MLnumber)/=0) then
         MUD(MLnumber)%minlosspa_MUDLINE=1000*MUD(MLnumber)%Mud_SG*((11.7*MUD(MLnumber)%Q*6.30902e-5*3600)/(CV_MUDLINE(MLnumber)))**2 !(pa)
         MUD(MLnumber)%minloss_MUDLINE= MUD(MLnumber)%minlosspa_MUDLINE/6895 !(psi)
    else
         MUD(MLnumber)%minlosspa_MUDLINE=NOTE_MUDLINE(MLnumber)*1e5 !(pa)
         MUD(MLnumber)%minloss_MUDLINE= MUD(MLnumber)%minlosspa_MUDLINE/6895 !(psi)
    endif

    
!==========================STATIC & KINETIC LOSS=============================  

String_Height= 50.*0.3048          !<<<<<<<<<<<<<<< (foot) to (meter). az khanom tarmigh       
MUD(1)%static_loss=(String_Height- Pumps_Height)*0.0    !(MLnumber=1,,PumpsToString)
MUD(2)%static_loss=(String_Height- STpipeGauge_Height)*MUD(2)%Mud_SG*wdens*gravity/6895    ! (psi)        (MLnumber=2,,STGaugeToString)
MUD(3)%static_loss=0.    !(MLnumber=1,,WellToPits)
MUD(4)%static_loss=(ChokeManifold_Height- WellChokeExit_Height)*MUD(4)%Mud_SG*wdens*gravity/6895    !(MLnumber=4,,WellToChokeManifold)



! RAM(RNUMBER)%kinetic_loss1=MUD(MLnumber)%Mud_SG*MUD(MLnumber)%Mud_Density*(RAM(RNUMBER)%Q*6.30902e-5/((1/4.)*pi*(.72*0.254e-1)**2))**2/(2*6895) !(psi)

 
 
!============================TOTAL LOSS=======================================  
 MUD(MLnumber)%total_loss= MUD(MLnumber)%fricloss+ MUD(MLnumber)%minloss_MUDLINE+ MUD(MLnumber)%static_loss!+ RAM(RNUMBER)%kinetic_loss1 !(psi)

    
    END
    
    
    
    
    
    
   SUBROUTINE DEALLOCATE_ARRAYS_MudSystem()
USE MudSystemVARIABLES
implicit none
!===========================================================================
!                   	RAMLINE MINOR LOSSES INPUT
!===========================================================================
 if (allocated(MudMinors)) DEALLOCATE (MudMinors)
!===========================================================================
!                   	RAMLINE PIPNING LOSSES INPUT
!===========================================================================
 if (allocated(MINORDIAMETER_MUDLINE)) DEALLOCATE (MINORDIAMETER_MUDLINE)
 if (allocated(AREAMINOR_MUDLINE)) DEALLOCATE (AREAMINOR_MUDLINE)
 if (allocated(LF_MUDLINE)) DEALLOCATE (LF_MUDLINE)
 if (allocated(CV_MUDLINE)) DEALLOCATE (CV_MUDLINE)
 if (allocated(NOTE_MUDLINE)) DEALLOCATE (NOTE_MUDLINE)
 
!===========================================================================
!                   	ANNULAR MINOR LOSSES INPUT
!===========================================================================
 if (allocated(PIPINGS_MUDLINE)) DEALLOCATE (PIPINGS_MUDLINE)
!===========================================================================
!                   	ANNULAR PIPNING LOSSES INPUT
!===========================================================================  
 if (allocated(DIAM_MUDLINE_INCH)) DEALLOCATE (DIAM_MUDLINE_INCH)
 if (allocated(AREA_MUDLINE)) DEALLOCATE (AREA_MUDLINE)
 if (allocated(LENGT_MUDLINE)) DEALLOCATE (LENGT_MUDLINE)
 if (allocated(ROUGHNESS_MUDLINE)) DEALLOCATE (ROUGHNESS_MUDLINE)
 if (allocated(RELROUGH_MUDLINE)) DEALLOCATE (RELROUGH_MUDLINE)
 
    END  
    
    
    
    
    
    
    subroutine AddDynamicArray(array, value)
        implicit none
        REAL, allocatable, intent(inout) :: array(:)
        REAL, intent(in) :: value
        REAL, allocatable :: tempArr(:)
        integer :: i, isize
        
        !if(allocated(array)) then
        !    isize = size(array)
        !    allocate(tempArr(isize+1))
        !    do i=1,isize          
        !    tempArr(i) = array(i)
        !    end do
        !    tempArr(isize+1) = value
        !    deallocate(array)
        !    call move_alloc(tempArr, array)
        !else
        !    allocate(array(1))
        !    array(1) = value
        !end if
            
    end subroutine