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Releasing Back-off Overshot
Source:SIQUAN|[ 2014-03-12 ] Hits:1182
摘要:
Releasing Back-off overshot is a tool designed to recover and back off the pipe-shaped fish like drill pipe,tube,etc. When necessary, it can release the fish and circulate drilling fluid.
Type O.D. mm(in) Joint thread  Fishing range
Mm
Type O.D. mm(in) Joint thread  Fishing range
(mm)
DLT-T48 95(3 3/4) 2 7/8″REG 47.0~49.3 DLT-T102 145(5 13 /16) NC38 101.0~104.0
DLT-T60 105(4 1/8) NC26 59.7~61.3 DLT-T114 160(6 5/16) 4 1/2″REG 113.0~115.0
DLT-T73 114(4 1/2) NC31 72.0~74.5 DLT-T127 185(7 1/4) NC50 126.0~129.0
DLT-T89 134(5 1/4) NC38 88.0~91.0 DLT-T140 200(7 7/8) NC50 139.0~142.0


 
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