Horizontal Directional Drilling Design Calculation

Ds
 
ts
 
CA
 

SMYS
 
ρs
 
Es
 
ν --
 
tcoat1
 
ρcoat1
 
tcoat2
 
ρcoat2
 
Pd
 
Ph
 
Td o
 
Tamb o
 
μsoil -
 
μroller -
 
Lroller
 
Ro
 
μmud
 
ρbent
 
FL % SMYS
 
FH % SMYS
 
FO % SMYS
 
FEBR times
 
HDD Crossing

Fig. Typical Horizontal Directional Drilling Crossing


Lh
Depth
θin deg
θout deg
Rin
Rout
hin
hout
Hsoil
 
Hwater
 
ρsoil
 
ρwater
 
D
t
ρ


ρfluid