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  • HOME
  • ABOUT
  • PRODUCTS
    • DRILLING TOOLS
      • DRILLING MOTORS
      • STABILIZERS
      • DRILL COLLARS
      • DRILLING JARS
      • HYDRAULIC AGITATOR
      • ANTI STICK-SLIP TOOL
      • MULTIPLE ACTIVATION BYPASS VALVE
      • DRILL PIPES
      • NON-ROTATING PROTECTOR
      • X-OVER & SUBS
      • DRILL BITS
      • MICRO REAMER
    • FISHING TOOLS
      • RELEASING SPEAR
      • RELEASING AND CIRCULATING OVERSHOT
      • REVERSE CIRCULATION JUNK BASKET
      • JUNK SUB
      • FISHING MAGNET
      • SAFETY JOINT
      • TAPER TAP
      • DIE COLLAR
      • IMPRESSION BLOCK
      • DITCH MAGNET
      • MILLING SHOES
      • WASHOVER PIPE
    • IBOPs
      • KELLY VALVE
      • FLOAT VALVE
      • FULL OPENING SAFETY VALVE
      • TOP DRIVE IBOP
      • INSIDE BOP
      • DROP-IN CHECK VALVE
    • WELLBORE CLEANING TOOLS
      • CASING SCRAPER
      • NON-ROTARY CASING SCRAPER
      • CASING BRUSH
      • CUTTING BED IMPELLER
      • STRING MAGNET
      • ROTARY CASING GUIDER
      • CASING CUTTER
      • SECTION MILL
    • WELLHEAD TOOLS
      • ELEVATORS
      • ELEVATOR LINKS
      • POWER TONGS
      • MANUAL TONGS
      • SLIPS
      • SPIDERS
      • SPINNING WRENCH
      • BUSHINGS
    • DRILLING EQUIPMENTS
      • MUD PUMP
      • VALVE SEAT AND BODY
      • PISTON
      • CYLINDER LINER
      • HYDRAULIC BUCKING UNIT
      • JAR TESTER
      • FRAC PUMP VALVE RUBBER
      • FRAC PUMP VALVE BODY
      • FRAC PUMP VALVE SEAT
      • FRAC PUMP PLUNGER PACKING
  • PRESS
  • CONTACT

OVERSHOT WITH BASKET GRAPPLE

OVERSHOT WITH SPIRAL GRAPPLE

RELEASING AND CIRCULATING OVERSHOT

TECHNICAL SUMMARY

LT overshot is one of the fishing tools which is fishing the pipes externally. It can catch drill collar, drill pipe, tubing, subs and other pipes. Because of the seals, the fluid can circulate with the high pump pressure after catching the fish. The top of the fish will be milled by under mill shoe.
The releasing and circulating overshot can also work with jars to catch the stuck fishes. If the catched fish can’t be release from stucking, we could release the overshot and lifting the drill string.
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. 

SPECIFICATION

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
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