The super-short downhole motor could shorten the total length of downhole motor effectively and the distance from bend point to bit box, at the same time, it ensures the motive power of power section, that is to shorten the distance from instrument to drill bit, which enhance the build up rate at the same working condition and could also be suitable for high accuracy requirements of occasions for well trajectory control. The developed model has 3 3/4” and 6 3/4”etc.
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Model of Super-short Downhole Motor
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Item
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3 3/4” Super-short
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3 3/4” Normal
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6 3/4” Super-short
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6 3/4” Normal
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Total Length (mm)
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3100
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4670
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4200
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8080
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Power Section Length (mm)
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2100
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2820
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3000(ERT)
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5400
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Distance from Bend Point to Bit Box (mm)
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760
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1075
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960
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1460
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Note: 6 3/4”super-short downhole motor is equipped with ERT power section (even wall stator).
