 |
Mud pump liners are
generally available in
chrome, alumina ceramic
and zirconia ceramic.
While chrome liners and
alumina ceramic liners
are less expensive to
purchase, their cost of
ownership far exceeds
the cost of zirconia
ceramic liners.
Following is a Cost of
Ownership Analysis which
shows a reasonable cost
comparison for a rig in
continuous service for
three years. Numbers
shown are cost per
cylinder. Multiply the
savings by the number of
pump cylinders on your
rig(s) to realize the
cost savings available
to you by using zirconia.
|
|
|
Component
|
Change Frequency
|
US $ Cost/Change
|
No. Changes/36
Mos.
|
Extended $ Cost
|
|
Mud
Pump Liners |
|
|
|
| Chrome |
Monthly
|
$500
|
36
|
$18,000
|
| Alumina |
Yearly
|
$1,500
|
3
|
$4,500
|
| Zirconia |
1X Every 3 Years
|
$2,500
|
1
|
$2,500
|
|
(breakage for alumina is not
considered in this data) |
 |
|
|
|
|
|
Pistons (based on type of liner) |
|
|
| Chrome |
2X Per Month
|
$125
|
72
|
$9,000
|
| Alumina |
1X Per Month
|
$125
|
36
|
$4,500
|
| Zirconia |
4X Per Year
|
$125
|
12
|
$1,500
|
|
|
|
|
|
|
|
Self-Aligning Rods (cost difference
between standard and self-aligning
rods) |
| Chrome |
Not Required
|
0
|
0
|
0
|
| Alumina |
1X
|
$1,000
|
1
|
$1,000
|
| Zirconia |
Not Required
|
0
|
0
|
0
|
|
|
|
|
|
|
|
Total
Cost Per Cylinder |
|
|
| Chrome |
-
- - - - - - - - - - - - - - - -
-
|
-
- - - - - - - - - - - - - - - -
-
|
6.75 x Zirconia
|
$27,000
|
| Alumina |
-
- - - - - - - - - - - - - - - -
-
|
-
- - - - - - - - - - - - - - - -
-
|
2.75 x Zirconia
|
$10,000
|
| Zirconia |
-
- - - - - - - - - - - - - - - -
-
|
-
- - - - - - - - - - - - - - - -
-
|
-
- Best Value - -
|
$4,000
|
|
(no labor, rig downtime or lost time
due to accidents are considered in
this data) |
|
|
|
|
|
|
|
Zirconia liners save you $23,000
over chrome and $6,000 over alumina.
How much will you save on your rig(s)? |
|
