Whipstock driven by downhole motor
The utility model relates to a whipstock driven by downhole motor which is constituted by a rotor and a tubular stator. The rotor is suited inside the tubular stator and supported by a bearing arranged on the tubular stator. The utility model is characterized in that the rotor is composed by downhol...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a whipstock driven by downhole motor which is constituted by a rotor and a tubular stator. The rotor is suited inside the tubular stator and supported by a bearing arranged on the tubular stator. The utility model is characterized in that the rotor is composed by downhole motor transmission shaft and a whipstock transmission shaft. The lower end of the downhole motor transmission shaft and the upper end of the whipstock transmission shaft are connected together through a matched spline connecting structure. A downhole motor power shaft connecting structure is arranged on the upper end of the downhole motor transmission shaft. a drill bit connecting structure is arranged on the lower end of the whipstock drive shaft. The tubular stator is composed by a shell of the downhole motor transmission shaft, an upper tube section, a lower tube section and a wedge slide block. A downhole motor shell connecting structure is provided on the upper end of the shell of the downhole motor transmission shaft. A straight line type upper end oblique slide guiding structure is arranged between the lower end of the upper tube section and the upper end of the wedge slide block. A straight line type lower end oblique slide guiding structure is arranged between the upper end of the lower tube section and the lower end of the wedge slide block. |
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