Unionlever (Group) Petroleum Equipment Co.,Ltd.

Releasing and Circulation Overshots

Releasing and Circulating Overshoes

 

The Releasing and Circulating Overshot is simple and rugged and is strongest tool available to externally engage, pack off and pull a fish.

The internal catch mechanisms are of two basic types: a basket grapple and a spiral grapple. According to different uses, it may be equipped with some accessories, such as extension sub, wall hook, enlarged guide, etc.

When ordering or requesting quotation, please specify:

   1. Type of overshot;

   2. OD. Of fish to be caught;

   3. Size and type of top connection;

   4. If size other than standard, please specify clearly. etc. 


Type

O.D.
(mm/inch)

Max. Catch Size
(mm/inch)

Connection
API

Basket Grapple

Spiral grapple

LT102

102(4)

57.2(2-1/4)

70(2-3/4)

NC26

LT111

111(3-3/4)

60.3(2-3/8)

76.2(3)

NC31

LT133

133(5-1/4)

95.3(3-3/4)

101.6(4)

NC38

LT146

146(5-3/4)

101.6(4)

119.4(4-11/16)

NC38

LT206

206.4(8-1/8)

146(5-3/4)

168(6-5/8)

NC50

LT245

245(9-5/8)

184.2(7-1/4)

203(8)

6-5/8RGE

LT270

269.9(10-5/8)

200(7-7/8)

220(8-21/32)

6-5/8RGE

LT286

285.8(11-1/4)

203(8)

245(9-41/64)

6-5/8RGE

LT340

340(13-3/8)

222(8-3/4)

267(10-1/2)

6-5/8RGE

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