Reverse Circulation Junk Basket

Reverse Circulation Junk Basket
Reverse Circulation Junk Basket
Reverse Circulation Junk Basket
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The reverse circulation junk basket is intended to be used to retrieve small junk objects, such as cones, cutters, hand tools and other debris from the wellhole. During drilling operation, it produces a local reverse circulation of drilling fluid at the well core to push debris into the junk basket. When PDC is used, cleaning the bottom of the well is necessary to protect the rig's drill tools.

Specifications
Type Barrel O.D (mm) Mill shoe (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 286 292 217 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

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