Page 601 - Air and Gas Drilling Manual

d
6
D
12
D 6 6 0 292 ft Chapter 11: Specialized Drilling Equipment 11-39
.
The total length of the lumped drill pipe body geometry increment, H 3, in the
openhole section is
,
H 3 2 375 ft
The inside diameter of the drill pipe body lumped geometry in this openhole section
is
.
d 7 3 826 inches
d 7
D 7
12
D 7 0 319 ft
.
The total length of the lumped drill pipe tool joints geometry increment, H 2, in
the cased section is

H 350 ft
2
The inside diameter of the drill pipe tool joints lumped geometry in this cased
section is
D 6 0 292 ft
.
The total length of the lumped drill pipe body geometry increment, H 1, in the
cased section is
,
H 1 6 650 ft
The inside diameter of the drill pipe body lumped geometry in this cased section is
D 0 319 ft
.
7
Inside the Drill String (10,000 ft to 7,000 ft)
The fifth drill string section increment is denoted by the length H 5. The
temperature at the bottom of the drill collars (bottomhole temperature) in the
openhole section is