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GB0710281D0
|
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Orientation sensor for downhole tool
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WO2007138314A1
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Rotary steerable tool
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GB0618880D0
|
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Direction adjustment tool for downhole drilling apparatus
|
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GB0610814D0
|
|
Rotary steerable drilling tool
|
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GB0329402D0
|
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A telescopic data coupler for hostile and fluid-immersed environments
|
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GB0223840D0
|
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Bidirectionally data transmission between mechanically engaged metallic members
|
|
GB0218345D0
|
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Inductive data coupler for use with downhole tool
|
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GB0207882D0
|
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Electrically insulating joint assembly for use in drill string
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CA2435785A1
|
|
Drilling signalling system
|
|
EP1354125A1
|
|
Pressure pulse generator for mwd
|
|
GB0105313D0
|
|
Drilling signalling system
|
|
GB0105312D0
|
|
Drilling signalling system
|
|
GB0101919D0
|
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Induction logging antenna
|
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GB0101802D0
|
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Drilling signalling system
|
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GB0101803D0
|
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Drilling signalling system
|
|
GB0101806D0
|
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A pressure pulse generator
|
|
WO0106278A1
|
|
Logging-while-drilling using a directional sonde
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EP0770220A1
|
|
Gamma ray detection and measurement device
|
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GB9117647D0
|
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Tubular connection
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