Releasing spears Type T
Application
The STS Releasing Spear is an internal catch fishing tool designed to retrieve tubular items from oil, gas and exploratory well bores.
Construction
The basic Releasing Spear consists of a mandrel, basket grapple, bull nose nut and release ring. The Releasing Spear is supplied by basket grapples with different ODs. The basket grapple set is formed at customer’s request. The catching process carried out by the helix-shaped configuration outside the spear bowl provides a tapered spiral surface onto which the basket grapple will be attached.
Mandrels are made by different versions:
- Smooth;
- With thrust end;
- With thrust end and thread.
When ordering, please specify:
- Assembly name and size;
- Version (LH or RH);
- Nominal sizes and quantity of basket grapples;
- Type of mandrel;
Ordering Spears with smooth mandrel:
- Mandrel connection thread if other than stated in the table;
- Top sub connection thread;
- Quantity and length (800; 1000; 1500 mm) of extensions.
Ordering Spears with thrust end:
- Mandrel connection thread if other than stated in the table.
Ordering Spears with centering direction:
- Mandrel connection thread if other than stated in the table;
- Centering direction hole size.
Assembly name and size | Value of basket grapple nominal size (min...max) | Operating range of grapple corresponding to nominal size, ± | Load capacity | Flush body OD | ID | Connecting thread | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
мм | inch | мм | inch | кН | lbf | мм | inch | мм | inch | |||
T-48 | 37,3...50 | 1 15/32...1 31/32 | 0,9 | 0,035 | 200 | 45000 | 36,4 | 1 7/16 | - | - | З-30 | NC 10 |
T-60 | 49...62,5 | 1 15/16...2 15/32 | 1,4 | 0,055 | 340 | 76000 | 47,6 | 1 7/8 | 9 | 3/8 | З-38 | NC 13 |
T-73 | 60,9...77 | 2 13/32...3 1/32 | 1,4 | 0,055 | 650 | 146000 | 59,5 | 2 11/32 | 12 | 15/32 | З-44 | NC 16 |
T-89 | 73...100,3 | 2 7/8...3 61/64 | 1,9 | 0,750 | 1000 | 225000 | 71,1 | 2 13/16 | 12 | 15/32 | З-44 | NC 16 |
T-102 | 86,4...101,2 | 3 13/32...3 63/64 | 2,5 | 0,098 | 1300 | 292000 | 84 | 3 5/16 | 18 | 23/32 | З-73 | NC 26 |
T-114 | 98,1...112 | 3 55/64...4 13/32 | 3,2 | 0,126 | 1600 | 360000 | 94,9 | 3 23/32 | 20 | 25/32 | З-76 | 2 7/8 Reg |
T-127 | 106,1...154,6 | 4 11/64...6 3/32 | 3,2 | 0,126 | 2000 | 450000 | 103,6 | 4 1/16 | 22 | 7/8 | З-76 | 2 7/8 Reg |
T-146 | 124...150,5 | 4 7/8...5 15/16 | 3,4 | 0,134 | 2500 | 562000 | 120 | 4 23/32 | 22 | 7/8 | З-88 | 3 1/2 Reg |
T-168 | 133...156,2 | 5 15/64...6 5/32 | 3,4 | 0,134 | 2900 | 652000 | 129,5 | 5 3/32 | 25 | 1 | З-88 | 3 1/2 Reg |
T-178 | 154,8...202 | 6 3/32...7 61/64 | 3,8 | 0,150 | 2900 | 652000 | 147,8 | 5 13/16 | 36 | 1 13/32 | З-117 | 4 1/2 Reg |
T-219 | 195,3...279,6 | 7 11/16...11 | 3,8 | 0,150 | 4500 | 1012000 | 178 | 7 | 70 | 2 3/4 | З-147 | 5 1/2 FH |
T-245 | 218,4...288,8 | 8 19/32...11 3/8 | 5,1 | 0,200 | 6500 | 1461000 | 200 | 7 7/8 | 70 | 2 3/4 | З-147 | 5 1/2 FH |
T-324 | 288,8...322,9 | 11 3/8...12 23/32 | 5,1 | 0,200 | 6500 | 1461000 | 280 | 11 1/32 | 101 | 4 | З-147 | 5 1/2 FH |
It is possible to produce any sizes not listed in the table