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REVERSE CIRCULATION JUNK BASKET

TECHNICAL SUMMARY

Reverse Circulation Junk Basket, which is also known as RCJB, is designed to remove all types of small junk objects from the hole. The tool’s main feature eliminates pulling a wet string. Even when the tool is fitted with a magnet insert, reverse circulation is maintained.
Reverse circulation junk basket is made up to the bottom of the fishing string and lowered to a point within several feet from the bottom of the hole. Begin circulation to wash the hole. Stop circulation and drop the steel ball. (When the steel ball is dropped into the valve seat, circulation fluid travels outward and downward through the inner passage of the barrel and out through the vents in the lower end. The fluid is then deflected to the center of the tool and up through the return holes in the upper end of the barrel. This reverse fluid circulation carries the junk into the barrel above the junk catcher.) Begin circulation again, slowly rotating while lowering the tool until a 10-inch core has been cut. Stop rotation and circulation and pull the tool from the hole.

SPECIFICATION

Model

Barrel O.D.

(mm)

Mill Shoe O.D.

(mm)

Fish Max. O.D.

(mm)

Ball Dia.

(mm)

Thread Conn.

Hole Size

(mm)

LL-381

381

386

282

55

7 5/8 REG

406-444

LL-318

318

324

248

55

6 5/8 REG

349-406

LL-F286

286

298

217

55

6 5/8 REG

320-346

LL-F279

279

286

211

55

6 5/8 REG

300-341

LL-F254

254

260

195

55

6 5/8 REG

275-295

LL-F245

245

252

192

50

NC50

275-295

LL-F232

232

239

179

50

NC50

255-270

LL-F206

206

210

159

45

NC50

223-241

LL-F195

195

202

149

42

NC50

215-241

LL-F178

178

184

130

42

NC50

198-209

LL-F168

168

174

123

42

NC50

190-209

LL-F130

130

136

94

40

NC31

155-165

LL-F121

121

126

90

35

NC31

142-152

LL-F114

114

121

82

35

NC31

130-140

LL-F97

97

103

62

30

NC26

117-127

LL-F89

89

94

55

30

NC26

108-114

TYPE B MILL SHOE

TYPE C MILL SHOE

MAGNET INERT

FINGER SHOE

REVERSE CIRCULATION JUNK BASKET

PRODUCTS

Drilling Motors
Stabilizers
Drill Collars
Drill Pipes
Drilling Jars
Fishing Tools
Drill Bits
Subs & Valves
Mud Pump Spare Parts
Bearings
Drilling Equipment
Hydraulic Agitator