US2013118728A1
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Component for drilling and operating hydrocarbon wells
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WO2013056790A1
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Tubular drill stem component and method for tensioning a communication tube mounted in said component
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BR112013032800A2
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element for a drill string, tubular device with wellhead radio frequency communication and method for communication
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BR112013022059A2
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annular coupler for drilling tool component
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EP2678515A1
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Electromagnetic coupler
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FR2981394A1
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TUBULAR DRILL LINING COMPONENT WITH THREAD-FIXED TRANSMISSION SLEEVE AND METHOD OF MOUNTING SUCH COMPONENT
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BR112013007911A2
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tubing and set of tubes provided with layers of electrically conductive material for the transport of substances
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FR2972215A1
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DRILLING COMPONENT COMPRISING A MOBILE COUPLER AND A PRESSURE CHAMBER
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WO2011064467A1
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Drill string components, and string of components
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CN102482921A
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Drill pipe and corresponding drill fitting
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EP2373868A1
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Tubular drill string component and corresponding drill string
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MX2011011475A
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A holding device insertable into the central bore of a tubular drill string component, and corresponding tubular drill string component.
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CA2712670A1
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Drill packer member, drill pipe, and corresponding drill pipe string
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