FIELD: deep-hole drilling and well repair, particularly for rotary drilling and repairing oil and gas wells.
SUBSTANCE: facility includes transportation base with drilling derrick, draw works and draw works and rotor drive transmission. Facility also has rotor with built-in wedge grip arranged on separate mobile base and including rotary table and main gear wheel fixedly secured to rotary table. The main gear is cylindrical and arranged between two radial-thrust bearings inside body of rotary table provided with replaceable and detachable driving attachment arranged in separate body and fixedly connected with rotary table body. The attachment includes cylindrical satellite and drive gear put on drive shaft.
EFFECT: reduced size and extended range of suitable drives.
4 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2380512C2 |
