Releasing Rod Overshots Type OSH
Application:
The STS Releasing Rod Overshots are external catch fishing tools designed to retrieve tubular items, rod boxes mainly, from the oil, gas and exploratory well bores.
Construction:
The rod overshot consists of bowl, top sub and a set of replacement elements including spiral and basket grapples, grapple controls and type «S» and «C» control guides. The top subs are supplied in two versions: with rod connection (Standard version) or with tubing connection box.
When the fish diameter approaches the maximum catch of the overshot, a spiral grapple is required. In other cases a basket grapple is used. The catching process carried out by the helix-shaped configuration inside the overshot bowl provides a tapered spiral surface onto which spiral or basket grapple will attach.
When ordering, please specify:
- Assembly name and size;
- Version (LH or RH);
- Top connection, if other than stated in the table;
- Nominal sizes and quantity of spiral and basket grapples taking into account that operating range both spiral and basket grapples are +0.2…-1.3 mm of nominal size;
Recommended spares for each size of rod overshots:
- 3 (three) spiral grapples for each nominal size;
- 3 (three) basket grapples for each nominal size;
- 1 (one) basket grapple control for each 6 (six) basket grapples of all sizes;
- 2 (two) spiral grapple controls type “C” for each 6 (six) spiral grapples.
Assembly name & size | OD | Max size of the spiral grapple | Max size of the basket grapple | Connecting thread | Limit load | |||||
---|---|---|---|---|---|---|---|---|---|---|
mm | inch | mm | inch | mm | inch | кН | lbf | |||
OSH-36 | 36,8 | 17/16 | 31,8 | 11/4 | 27,0 | 11/16 | МШ-16 | Rod 5/8 box | 30,0 | 7000,0 |
OSH-40 | 40,2 | 119/32 | 30,2 | 13/16 | 27,0 | 11/16 | МШ-19 | Rod 3/4 box | 102,0 | 23000,0 |
OSH-42 | 42,2 | 121/32 | 34,2 | 111/32 | 27,0 | 11/16 | МШ-19 | Rod 3/4 box | 80,0 | 18000,0 |
OSH-45 | 45,8 | 113/16 | 36,5 | 17/16 | 28,5 | 11/8 | МШ-22 | Rod 7/8 box | 100,0 | 22000,0 |
OSH-47 | 46,8 | 127/32 | 38,1 | 1 1/2 | 31,8 | 1 1/4 | МШ-22 | Rod 7/8 box | 103,0 | 23000,0 |
OSH-48 | 48,6 | 129/32 | 40,4 | 119/32 | 33,4 | 1 5/16 | МШ-22 | Rod 7/8 box | 107,0 | 24000,0 |
OSH-53 | 53,9 | 2 1/8 | 46,0 | 113/16 | 38,1 | 1 1/2 | МШ-22 | Rod 7/8 box | 100,0 | 22000,0 |
OSH-54 | 54,6 | 2 5/32 | 44,4 | 1 3/4 | 38,1 | 1 1/2 | МШ-22 | Rod 7/8 box | 103,0 | 23000,0 |
OSH-57 | 57,2 | 2 1/4 | 46,8 | 127/32 | 41,3 | 1 5/8 | МШ-22 | Rod 7/8 box | 190,0 | 43000,0 |
OSH-58 | 58,7 | 2 5/16 | 49,2 | 115/16 | 42,9 | 111/16 | МШ-22 | Rod 7/8 box | 180,0 | 40000,0 |
OSH-60 | 60,3 | 2 3/8 | 49,2 | 115/16 | 42,9 | 111/16 | МШ-22 | Rod 7/8 box | 207,0 | 47000,0 |
OSH-71 | 71,4 | 213/16 | 57,2 | 2 1/4 | 49,2 | 115/16 | З-44 | NC 16 | 226,0 | 51000,0 |
OSH-72 | 72,2 | 227/32 | 60,3 | 2 3/8 | 54,0 | 2 1/8 | З-44 | NC 16 | 210,0 | 47000,0 |
OSH-73 | 73 | 2 7/8 | 60,3 | 2 3/8 | 53,2 | 2 3/32 | З-44 | NC 16 | 282,0 | 63000,0 |
OSH-82 | 82 | 3 7/32 | 69,0 | 223/32 | 60,3 | 2 3/8 | З-66 | 23/8 Reg | 280,0 | 63000,0 |
It is possible to produce any sizes not listed in the table