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SERIES 150 OVERSHOT

SERIES 150 OVERSHOT
SERIES 150 OVERSHOT

Product Code : SERIES 150 OVERSHOT

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Description

TIANHE 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.

 

Construction

Series 150 Overshot consists of three outside parts: Top Sub, Bowl, and Standard Guide. 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 order please specify:

·The model of the overshot

·The hole, casing size or o.d. of overshot

·Top connection

·O.D of the fish

 

Specifications - series 150 overshot

 

Model

O.D.(mm)

Max.catch size(mm)

API
Connection

Model

O.D.(mm)

Max.catch size(mm)

API

Connection

Spiral grapple

Basket grapple

Spiral grapple

Basket grapple

LT-T89

89

60.3

47.6

NC26

LT-T194

194

159

141

NC50

LT-T92

92

73

63.5

NC26

LT-T200

200

159

141

NC50

LT-T95

95

76.2

66.6

NC26

LT-T206

206

178

163

NC50

LT-T102

102

73

60.3

NC26

LT-T206A

206

168

152

NC50

LT-T105

105

85.7

73

NC31

LT-T219

219

178

159

NC50

LT-T114

114

89

75

NC31

LT-T232

232

203

187

NC50

LT-T117

117

89

78

NC31

LT-T244

244

206

184

6 5/8 REG

LT-T127

127

95

80

NC38

LT-T260

260

219

200

6 5/8 REG

LT-T143

143

120.6

102

NC38

LT-T270

270

228.6

209.6

6 5/8 REG

LT-T152

152

128

111

NC38

LT-T273

273

241.3

216

6 5/8 REG

LT-T168

168

127

114

NC50

LT-T286

286

244.5

225.4

6 5/8 REG

LT-T168B

168

139.7

120.6

NC50

LT-T298A

298

257

238.1

6 5/8 REG

LT-T181

181

146

127

NC50

LT-T340

340

286

260

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 ltcoloy 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.

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