STANDARD HANDBOOK OF PETROLEUM & NATURAL GAS ...

Hoisting System 597
Vee Side of Derrick
i Dead Line Anchor (HI Dead Line Anchor (I)
(for left hand reeving) (for right hand reeving)
I
I
I
I
I
I
I
I
I
Drill Pipe
rinqers
n
I
I
I
I
I
I
I
! n
--
Y
0
L
L
a3
Q
rc
0
aJ
U
.-
v,
L
aJ
U 0
J
Figure 4-75. Typical reeving diagram for 14-line string-up with eight-sheave
crown block and seven-sheave traveling block: left-hand reeving [ 111.
locate the deadline anchor to the left of the derrick vee. In selecting the best
of the various possible methods for reeving casing or drilling lines, the following
basic factors should be considered:
1. Minimum fleet angle from the drawworks drum to the first sheave of the
crown block, and from the crown block sheaves to the traveling block
sheaves.
2. Proper balancing of crown and traveling blocks.
3. Convenience in changing from smaller to larger number of lines, or from
larger to smaller number of lines.
4. Location of deadline on monkey board side for convenience and safety of
derrickman.