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A kind of drilling guidance control device
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A kind of pair of inclined tool-face driving and stabilising arrangement
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A kind of drilling fluid injection and the switch that flows back
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A kind of ball-type mechanical switch control device
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A kind of drilling fluid inlet and outlet control device
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A kind of straight-opening type hydraulic telescopic machanism
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A kind of static, pushing type hydraulic rotating guide drilling tool
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A kind of mechanical guide driving device
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A kind of mechanical guide control device
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A kind of machine automatization vertical drilling tool
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A kind of hydraulic automatic vertical drilling tool
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A kind of guiding type rotary steering drilling tool
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A kind of guider for controlling tool-face excursion
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Guiding device with 60 degrees of constant tool face control range
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Tool surface stabilizer
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A kind of mechanical guide drilling tool
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A kind of drill string rotating pressurizing tool
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A kind of machinery vertical drilling tool
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Mechanical rotation guide type drilling tool
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