| Customization: | Available |
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| After-sales Service: | Lifetime Support |
| Warranty: | 12months |
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The Drilling Roller Reamers are employed in boring operations for the oil & gas industry. The main function of roller reamers cut earth formations to enlarge the borehole to the desirable size during well drilling operation, which may be the original size of the drill bit in the case where the drill bit wears to be under-gauged. However, even for new drill bits, roller reamers are employed to cut formations because the bit does not always drill a true bore hole and because of slight lateral shifting which is inherent in the drilling operation, which shifting leaves ledges and other distortions. Additionally, the second function of a roller reamer is to keep the drill stem in the center of the hole at the specific position of placement of the roller-reamer. In providing such a function, a reamer is often referred to as a stabilizer. Maintaining the drill stem centered has many beneficial effects, its primary one being minimizing unintentional hole-angle directional drilling.
Popular hole sizes for well bores range from 5" to 26" in diameter. Size of circulation passage through the center of the body of the reamer typically range from 1 1/2" to 3 1/4" in diameter. The body size on the necks beyond the area where the rollers are mounted typically range from 4 1/8" to 11" in diameter. This latter size will normally be the same size as the drill collar. Body links normally range from 4' to 8'.
KY type hydraulic Hole Reamer is a new type of hydraulic variable diameter hole opener for drilling or workover operations. It is operated by controlling the mud pump switch at the wellhead to adjust the hydraulic pressure drop in the drill string and realize the opening and withdrawal of the blade. In other words, when the pump is opened, the pump pressure is used to push the piston to overcome the spring thrust upward and drive the blade to slide upward and open in the chute of the housing. When the pump is stopped or the drill tool is lifted up, under the action of spring thrust and wall friction, the blade of the tool moves down in the chute of the housing and withdraw to achieve the purpose of diameter change and reaming, so as to prevent the resistance or stuck when pulling out or tripping in. It has the advantages of reasonable structure, good wear resistance, adjustable reaming size, and can be used for hole enlargement, especially while drilling, realizing the process of "drilling and hole opening in one trip".
| Model | Product Code | O.D (mm) |
I.D. (mm) |
Connection | Hole Size (in) |
| WG155 | W1104100 | 155 | 25.4 | NC38 | 6 1/8 |
| WG200 | W1110100 | 200 | 38 | NC46 | 7 7/8 |
| WG212 | W1111200 | 212 | 44 | NC50 | 8 3/8 |
| WG215 | W1113100 | 215 | 44 | NC50 | 8 1/2 |
| WG244 | W1114100 | 244 | 57 | NC50 | 9 5/8 |
| WG311 | W1121100 | 311 | 71 | 6 5/8 REG | 12 1/4 |
| WG444 | W1128100 | 444 | 76 | 7 5/8 REG | 17 1/2 |
| WG558 | W1131100 | 558 | 76 | 7 5/8 REG | 22 |
| WG660 | W1133100 | 660 | 76 | 7 5/8 REG | 26 |
| WG711 | W1134100 | 711 | 76 | 7 5/8 REG | 28 |
| WG914 | W1137100 | 914 | 76 | 7 5/8 REG | 36 |
API standard roller reamers are high-performance downhole tools designed for hole enlargement and stabilization in all formation types. Manufactured in strict compliance with API specifications, all components are made of special alloy steel with heat treatment for enhanced hardness and wear resistance.
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