Oilfield API 7-1 LL-F Type Reverse Circulation Junk Basket
Product Overview
Reverse Circulation Junk Basket (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.
Operation
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” core has been cut. Stop rotation and circulation and pull the tool from the hole.
Technical Parameters of Our Reverse Circulating Junk Basket
| type | Barrel O.D. (mm) | Fish Max.O.D. (mm) | Ball Dia. (mm) | Thread Conn | Hole Size (mm) |
| LL-381 | 381 | 282 | 55 | 7 5/8REG | 406-444 |
| LL-318 | 318 | 248 | 55 | 6 5/8REG | 349-406 |
| LL-F286 | 286 | 217 | 55 | 6 5/8REG | 320-346 |
| LL-F279 | 279 | 211 | 55 | 6 5/8REG | 300-341 |
| LL-F254 | 254 | 195 | 55 | 6 5/8REG | 275-295 |
| LL-F245 | 245 | 192 | 50 | NC50 | 275-295 |
| LL-F232 | 232 | 179 | 50 | NC50 | 255-270 |
| LL-F200 | 200 | 154 | 45 | NC50 | 223-241 |
| LL-F195 | 195 | 149 | 42 | NC50 | 215-241 |
| LL-F178 | 178 | 130 | 42 | NC50 | 198-209 |
| LL-F168 | 168 | 123 | 42 | NC50 | 190-209 |
| LL-F130 | 130 | 94 | 40 | NC31 | 155-165 |
| LL-F121 | 121 | 90 | 35 | NC31 | 142-152 |
| LL-F114 | 114 | 82 | 35 | NC31 | 130-140 |
| LL-F97 | 97 | 62 | 30 | NC26 | 117-127 |
| LL-F89 | 89 | 55 | 30 | NC26 | 108-114 |
Xi'An TianRui Petroleum Machinery Equipment Company Limite is a professional manufacturer of cementing tools and other petroleum equipment in China. We are the first-class supplier of resources market of SINOPEC and CNPC. Our main products include solid control equipment, rig accessories, well control system, drill string, handling tools, downhole tools, OCTG, drilling tools and cementing tools. They are exported to Russia, America, Middle East, South America, Southeast Asia, Central Asia, African, Australia, Europe etc. Our company is willing to cooperate and make common progress with friends at home and abroad with first-class products, first-class service and reasonable prices.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time.
3. Flexible payment terms.
4. Timely after-sale service.
5. Most of our equipment can be replaceable with international brands.
6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.
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Reverse Circulation Junk Basket API Drill Spare Parts Images
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