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Series 150 Releasing and Circulating Overshot
Application:
Series 150 Releasing and Circulating Overshot is an external fishing tool for engage, pack off and retrieve tubular fish, especially for fishing drill collar and drill pipe. The grapple of the overshot can be designed for different sizes of fish, so one overshot can be dressed with different size of grapple components for fishing different sizes of fish.
Consist of:
three outside parts: Top Sub, Bowl, and Standard Guide.
Operation:
The Basic Overshot may be dressed with either of two sets of internal parts, if the fish diameter is near the maximum catch of the Overshot, a Spiral Grapple, Spiral Grapple Control, and Type “A” Packer are used. If the fish diameter is considerably below maximum catch size (½” or more) a Basket Grapple and a Mill Control Packer are used.
When ordering please specify:
●The model of the overshot
●The hole, casing size or O.D. of overshot
●Top connection
●O.D of the fish
FS = Full Strength
SH = Slim Hole
Overshot type:
Series 150 Overshot with Basket Grapple
Series 150 Overshot with Spiral Grapple
Model:
LT-T89 LT-T92 LT-T95 LT-T102 LT-T105 LT-T114 LT-T117 LT-T127 LT-T143 LT-T152 LT-T168 LT-T168B LT-T181 LT-T194 LT-T200 LT-T206 LT-T206A LT-T219 LT-T232 LT-T244 LT-T260 LT-T270 LT-T273 LT-T286 LT-T298A LT-T340
Specifications - Series 150 Overshot
1 150 Overshot with Spiral Grapple LT-T89 89 60.3 NC26
2 150 Overshot with Spiral Grapple LT-T92 92 73 NC26
3 150 Overshot with Spiral Grapple LT-T95 95 76.2 NC26
4 150 Overshot with Spiral Grapple LT-T102 102 73 NC26
5 150 Overshot with Spiral Grapple LT-T105 105 85.7 NC31
6 150 Overshot with Spiral Grapple LT-T114 114 89 NC31
7 150 Overshot with Spiral Grapple LT-T117 117 89 NC31
8 150 Overshot with Spiral Grapple LT-T127 127 95 NC38
9 150 Overshot with Spiral Grapple LT-T143 143 120.6 NC38
10 150 Overshot with Spiral Grapple LT-T152 152 128 NC38
11 150 Overshot with Spiral Grapple LT-T168 168 127 NC50
12 150 Overshot with Spiral Grapple LT-T168B 168 139.7 NC50
13 150 Overshot with Spiral Grapple LT-T181 181 146 NC50
14 150 Overshot with Spiral Grapple LT-T194 194 159 NC50
15 150 Overshot with Spiral Grapple LT-T200 200 159 NC50
16 150 Overshot with Spiral Grapple LT-T206 206 178 NC50
17 150 Overshot with Spiral Grapple LT-T206A 206 168 NC50
18 150 Overshot with Spiral Grapple LT-T219 219 178 NC50
19 150 Overshot with Spiral Grapple LT-T232 232 203 NC50
20 150 Overshot with Spiral Grapple LT-T244 244 203 6 5/8 REG
21 150 Overshot with Spiral Grapple LT-T260 260 219 6 5/8 REG
22 150 Overshot with Spiral Grapple LT-T270 270 228.6 6 5/8 REG
23 150 Overshot with Spiral Grapple LT-T273 273 241.3 6 5/8 REG
24 150 Overshot with Spiral Grapple LT-T286 286 244.5 6 5/8 REG
25 150 Overshot with Spiral Grapple LT-T298A 298 257 6 5/8 REG
26 150 Overshot with Spiral Grapple LT-T340 340 286 6 5/8 REG
27 150 Overshot with Basket Grapple LT-T89 89 47.6 NC26
28 150 Overshot with Basket Grapple LT-T92 92 63.5 NC26
29 150 Overshot with Basket Grapple LT-T95 95 66.6 NC26
30 150 Overshot with Basket Grapple LT-T102 102 60.3 NC26
31 150 Overshot with Basket Grapple LT-T105 105 73 NC31
32 150 Overshot with Basket Grapple LT-T114 114 75 NC31
33 150 Overshot with Basket Grapple LT-T117 117 78 NC31
34 150 Overshot with Basket Grapple LT-T127 127 80 NC38
35 150 Overshot with Basket Grapple LT-T143 143 108 NC38
36 150 Overshot with Basket Grapple LT-T152 152 114 NC38
37 150 Overshot with Basket Grapple LT-T168 168 114 NC50
38 150 Overshot with Basket Grapple LT-T168B 168 120.6 NC50
39 150 Overshot with Basket Grapple LT-T181 181 127 NC50
40 150 Overshot with Basket Grapple LT-T194 194 141 NC50
41 150 Overshot with Basket Grapple LT-T200 200 141 NC50
42 150 Overshot with Basket Grapple LT-T206 206 163 NC50
43 150 Overshot with Basket Grapple LT-T206A 206 152 NC50
44 150 Overshot with Basket Grapple LT-T219 219 159 NC50
45 150 Overshot with Basket Grapple LT-T232 232 187 NC50
46 150 Overshot with Basket Grapple LT-T244 244 184 6 5/8 REG
47 150 Overshot with Basket Grapple LT-T260 260 200 6 5/8 REG
48 150 Overshot with Basket Grapple LT-T270 270 209.6 6 5/8 REG
49 150 Overshot with Basket Grapple LT-T273 273 216 6 5/8 REG
50 150 Overshot with Basket Grapple LT-T286 286 225.4 6 5/8 REG
51 150 Overshot with Basket Grapple LT-T298A 298 238.1 6 5/8 REG
52 150 Overshot with Basket Grapple LT-T340 340 263 6 5/8 REG
Series 150 overshot accessories
Series 150 Releasing and Circulating Overshot can be equipped with a wide range of accessories to meet a variety of complex fishing environmental.
Extension Sub
An extension sub is assembled between the top sub and the bowl. It is used when the upper portion of the fish is damaged or cannot be engaged. This accessory will permit the overshot to be lowered far enough over the fish to ensure secure engagement and pack off. They are available in lengths from 24 to 60 inches. When ordering, specify overshot O.D. Unless otherwise specified Extension Subs will be furnished in a standard 36-inch length.
Wall Hook Guide
If the fish is positioned in a washed out section of the hole, it may be difficult to engage the top of the fish using a conventional overshot guide. A wall hook guide can be used to capture the neck of the fish, centralize it, and then properly guide the fish into the bowl.
Oversize Guide
Oversized Guide properly guides the fish into the overshot when the hole size is considerably larger than the diameter of the fish and the overshot may pass alongside the fish without engaging it. Installation of an oversized guide instead of a standard guide will ensure alignment of the fish with the overshot.
Mill Extension
Overshot Mill Extension interiors are faced with lncoloy to a size that will mill away a flared or jagged fish to enable it to pass up into and be engaged by the Grapple in the Bowl. Mill Extensions are installed between the Bowl and the standard, oversize or wall hook guides.
Mill Guide
Overshot Mill Guides are designed to remove badly flared or jagged metal from the top of the fish. Mill Guides are used in place of the Standard or Oversized Guide to trim the fish so it can enter the overshot.
