subroutine TD_WellReadData

   Use CPathGenerationVariables
   Use TD_WellGeometry

   implicit none

   Integer ::  i
   
   
   
   TD_WellIntervalsCount = PathGeneration%ItemCount  + 1   ! +1 is belong to ROP hole
   
   if (Allocated(TD_WellGeo)) deAllocate (TD_WellGeo)
   Allocate (TD_WellGeo(TD_WellIntervalsCount))
   
   
   
   
!====================================================
!                Set Well Geometry Data
!====================================================
   
   TD_WellGeo(1)%HoleType      = PathGeneration%Items(1)%HoleType
   TD_WellGeo(1)%StartAngle    = 0.d0                                         ![rad]
   TD_WellGeo(1)%EndAngle      = PathGeneration%Items(1)%FinalAngle*(pi/180.d0)    ![rad]
   TD_WellGeo(1)%IntervalLength= PathGeneration%Items(1)%TotalLength               ![ft]
   !TD_WellGeo(1)%VerticalDepth = PathGenerations(1)%TotalVerticalDepth 
   TD_WellGeo(1)%TopDepth      = 0.d0
   TD_WellGeo(1)%DownDepth     = PathGeneration%Items(1)%MeasuredDepth
   
   
   
   Do i=2,TD_WellIntervalsCount-1
       
       TD_WellGeo(i)%HoleType      = PathGeneration%Items(i)%HoleType
       TD_WellGeo(i)%StartAngle    = PathGeneration%Items(i-1)%FinalAngle*(pi/180.d0)
       TD_WellGeo(i)%EndAngle      = PathGeneration%Items(i)%FinalAngle*(pi/180.d0)
       TD_WellGeo(i)%IntervalLength= PathGeneration%Items(i)%TotalLength
       !TD_WellGeo(i)%VerticalDepth = PathGenerations(i)%TotalVerticalDepth
       TD_WellGeo(i)%TopDepth      = PathGeneration%Items(i-1)%MeasuredDepth
       TD_WellGeo(i)%DownDepth     = PathGeneration%Items(i)%MeasuredDepth
       
       !=====> Radius Of Curvature Calculation
       if (TD_WellGeo(i)%HoleType/=0) then
           TD_WellGeo(i)%RCurvature = ((TD_WellGeo(i)%IntervalLength)/abs(TD_WellGeo(i)%EndAngle-TD_WellGeo(i)%StartAngle))
       end if
       
   End Do
   
   
   
   
   
!=====> Set ROP Hole Data
   TD_WellGeo(TD_WellIntervalsCount)%HoleType      = 0  !Straight
   TD_WellGeo(TD_WellIntervalsCount)%StartAngle    = TD_WellGeo(TD_WellIntervalsCount-1)%EndAngle
   TD_WellGeo(TD_WellIntervalsCount)%EndAngle      = TD_WellGeo(TD_WellIntervalsCount)%StartAngle
   TD_WellGeo(TD_WellIntervalsCount)%IntervalLength= 0.d0
   !TD_WellGeo(TD_WellIntervalsCount)%VerticalDepth = TD_WellGeo(TD_WellIntervalsCount-1)%VerticalDepth
   TD_WellGeo(TD_WellIntervalsCount)%TopDepth      = TD_WellGeo(TD_WellIntervalsCount-1)%DownDepth
   TD_WellGeo(TD_WellIntervalsCount)%DownDepth     = TD_WellGeo(TD_WellIntervalsCount)%TopDepth+TD_WellGeo(TD_WellIntervalsCount)%IntervalLength
   
   
   
   
   
   
!=====> Vertical Depth Calculation
   if ( TD_WellGeo(1)%HoleType==0 ) then
       TD_WellGeo(1)%VerticalDepth = TD_WellGeo(1)%IntervalLength*cos(TD_WellGeo(1)%StartAngle)
   else if ( TD_WellGeo(1)%HoleType==1 ) then
       TD_WellGeo(1)%VerticalDepth = (TD_WellGeo(1)%RCurvature*sin(abs(TD_WellGeo(1)%EndAngle)-abs(TD_WellGeo(1)%StartAngle))*cos(abs(TD_WellGeo(1)%StartAngle)))-(TD_WellGeo(1)%RCurvature*(1.-cos(abs(TD_WellGeo(1)%EndAngle)-abs(TD_WellGeo(1)%StartAngle)))*sin(abs(TD_WellGeo(1)%StartAngle)))
   else if ( TD_WellGeo(1)%HoleType==2 ) then
       TD_WellGeo(1)%VerticalDepth = (TD_WellGeo(1)%RCurvature*sin(abs(abs(TD_WellGeo(1)%EndAngle)-abs(TD_WellGeo(1)%StartAngle)))*cos(abs(TD_WellGeo(1)%StartAngle)))+(TD_WellGeo(1)%RCurvature*(1.-cos(abs(abs(TD_WellGeo(1)%EndAngle)-abs(TD_WellGeo(1)%StartAngle))))*sin(abs(TD_WellGeo(1)%StartAngle)))
   End if
   Do i= 2,TD_WellIntervalsCount
       if ( TD_WellGeo(i)%HoleType==0 ) then
           TD_WellGeo(i)%VerticalDepth = TD_WellGeo(i-1)%VerticalDepth+TD_WellGeo(i)%IntervalLength*cos(TD_WellGeo(i)%StartAngle)
       else if ( TD_WellGeo(i)%HoleType==1 ) then
           TD_WellGeo(i)%VerticalDepth = TD_WellGeo(i-1)%VerticalDepth+(TD_WellGeo(i)%RCurvature*sin(abs(TD_WellGeo(i)%EndAngle)-abs(TD_WellGeo(i)%StartAngle))*cos(abs(TD_WellGeo(i)%StartAngle)))-(TD_WellGeo(i)%RCurvature*(1.-cos(abs(TD_WellGeo(i)%EndAngle)-abs(TD_WellGeo(i)%StartAngle)))*sin(abs(TD_WellGeo(i)%StartAngle)))
       else if ( TD_WellGeo(i)%HoleType==2 ) then
           TD_WellGeo(i)%VerticalDepth = TD_WellGeo(i-1)%VerticalDepth+(TD_WellGeo(i)%RCurvature*sin(abs(abs(TD_WellGeo(i)%EndAngle)-abs(TD_WellGeo(i)%StartAngle)))*cos(abs(TD_WellGeo(i)%StartAngle)))+(TD_WellGeo(i)%RCurvature*(1.-cos(abs(abs(TD_WellGeo(i)%EndAngle)-abs(TD_WellGeo(i)%StartAngle))))*sin(abs(TD_WellGeo(i)%StartAngle)))
       End if
   End Do
   !Do i=1,TD_WellIntervalsCount
   !    print*, 'TD_WellGeo(i)%TopDepth='      , i ,   TD_WellGeo(i)%TopDepth
   !    print*, 'TD_WellGeo(i)%DownDepth='     , i ,   TD_WellGeo(i)%DownDepth
   !    print*, 'TD_WellGeo(i)%HoleType='      , i ,   TD_WellGeo(i)%HoleType
   !    print*, 'TD_WellGeo(i)%RCurvature='    , i ,   TD_WellGeo(i)%RCurvature
   !    print*, 'TD_WellGeo(i)%EndAngle='      , i ,   TD_WellGeo(i)%EndAngle
   !    print*, 'TD_WellGeo(i)%StartAngle='    , i ,   TD_WellGeo(i)%StartAngle
   !    print*, 'TD_WellGeo(i)%VerticalDepth=' , i ,   TD_WellGeo(i)%VerticalDepth
   !end do
   
   
   
   
   
   
   
!=====> Well Total Length Calculation 
   TD_WellTotalLength         = TD_WellGeo(TD_WellIntervalsCount)%DownDepth
   TD_WellTotalVerticalLength = TD_WellGeo(TD_WellIntervalsCount)%VerticalDepth


   
   
   
   
end subroutine