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FR2760783A1
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Element of a rotary drill rod train
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FR2744379A1
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PROCESS FOR THE MECHANICAL TREATMENT OF AN ELONGATE SHAPE PRODUCT IN AMAGNETIC AUSTENITIC STEEL AND IN PARTICULAR A ROD MASS FOR OIL DRILLING
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FR2678678A1
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DEVICE FOR ADJUSTING THE AZIMUT OF THE TRAJECTORY OF A DRILLING TOOL IN ROTARY MODE.
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FR2672831A1
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HIGH THROUGHPUT FRICTION WELDING MACHINE.
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FR2637316A1
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METHOD AND DEVICE FOR FIXING A TUBING HEAD ON THE UPPER END OF A WELL TUBING
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EP0286500A1
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Apparatus for controlled directional drilling, and process for controlling the apparatus
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EP0277065A2
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Non-magnetic manganese-chromium steel and tubular element of a drilling column made from this steel
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FR2622920A1
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Device for adjusting the direction of advance of a boring tool and corresponding process of adjustment
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FR2617533A1
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Device for remotely adjusting the relative orientation of two sections of a drilling column
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FR2612985A1
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METHOD AND DEVICE FOR ADJUSTING THE TRAJECTORY OF A DRILLING TOOL FIXED AT THE END OF A ROD TRAIN
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FR2612983A2
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DRILLING DEVICE WITH CONTROLLED TRAJECTORY AND CORRESPONDING TRAJECTORY ADJUSTMENT METHOD
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EP0190529A1
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Remotely controlled flow-responsive actuating device, in particular for actuating a stabilizer in a drill string
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FR2579662A1
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DRILLING DEVICE WITH CONTROLLED TRAJECTORY
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FR2575793A1
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DEVICE FOR THE REMOTE OPERATION OF EQUIPMENT ASSOCIATED WITH A CONDUIT IN WHICH AN INCOMPRESSIBLE FLUID FLOWS
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