TECH REPORT
POWHATAN POINT, OHIO
USA
Well type
Oil producer
Hole size
8½-in casing
Lithology
Shale and claystone
Test interval, ft MD
10,500–14,200
Total depth, ft MD
15,321
Mud type
Oil-base mud
Average ROP, ft/h
131
DURAFLO Screens for KING COBRA VENOM Shaker
Last Twice as Long As Conventional Screens
Side-by-side testing demonstrates DURAFLO screens’ efficiency
based on screen replacements, gasket condition, and mesh wear
Flow rate, galUS/min 570
An operator sought to compare the performance of
conventional screens versus DURAFLO* composite
replacement screens in a side-by-side test.
M-I SWACO conducted a full vibratory systems
analysis test on three BRANDT KING COBRA
VENOM shakers. Screen replacement, gasket
condition, and mesh wear were evaluated at an
equivalent flow rate of 570 galUS/min and deck
angles for unbiased results.
Conventional Screens
23.5
2,280
1,470
60
Testing proved that the DURAFLO
screens (left) handled the full flow rate
at the drilling ROP of 131 ft/h and lasted
on average 55 hours compared with
the conventional screens’ (right) life of
23.5 hours. Additionally, the DURAFLO
screens discarded 55% more solids
versus the conventional screens over
the same time frame, indicating that the
screens performed more work before
requiring replacement.
2,500
Solids discard rate, lbm/h
Background
Average time before
replacement, h
Average solids discard
rate, lbm/h
Average time before discard, h
Shaker type
BRANDT™ KING COBRA™
VENOM™ shakers
DURAFLO Screens
55
50
40
30
20
10
0
2,000
1,500
1,000
500
0
DURAFLO
screens
Conventional
screens
DURAFLO
screens
Conventional
screens
Technology
DURAFLO composite replacement screen
miswaco.com
*Mark of M-I L.L.C., a Schlumberger company. Other company, product, and service names are
the properties of their respective owners. Copyright © 2016 M-I L.L.C. All rights reserved. 16-MI-120864