Post on 29-Mar-2015
TUBULAR GOODS STANDARDS SUB-COMMITTEECASING WEAR WORK GROUP
Summer Meeting
Westminster, Colorado
June 24, 2009
API 9 5/8” 53.5 ppf T-95 Casing Specimen
Proposed Tool Joint Spec
4.00” Long 4137M Steel Tool Joint
4.00” Long 4137M Steel Tool Joint with 3.75” Long 3/32” Thick Hardband
Historical Prospective
• Blasting Sand– Sieve Analysis
• Unknown
– Off Market• Silicosis Liability
– 1985
• Water Filtration Media– Sieve Analysis
• Unknown
– Off Market• Silicosis Liability
– 1998
#5 Unimin Granusil - Cleburne, TX
0.00
10.00
20.00
30.00
40.00
50.00
30 40 50 70 100 140 200 270 Pan
USA Sieve Analysis
Per
cen
t
T-Tex -- No Longer Available
Current Sand Abrasive
#1 Dry Unground Silica - Mill Creek, OK
0.00
10.00
20.00
30.00
40.00
50.00
30 40 50 70 100 140 200 270 Pan
USA Sieve Analysis
Per
cen
t
Hematite
• Needs more study– Sieve analysis– Hardness– Equivalent wear
• 7% sand = ??% Hematite
Specimen Surface Finish
Two Specimen Test Protocol“Field Ready – As Supplied”
Possible API Funding
• Study of wear of 9 5/8” T-95 by 4137M tool joint steel– Consistency– Reproducibility