Reeves Wireline Technologies Limited

Edward Sheriff

Simon Christopher Ash

Logging tool communication apparatus (), for carrying out a downhole communication method, comprises rotatable and/or longitudinally reciprocable drill pipe () including fixed or capable of being fixed in a co-rotative and/or co-reciprocable relationship at an in-use downhole end an in-use downhole logging tool (). The logging tool () includes a movement sensor (); and the apparatus () includes a motor, at a location remote from the logging tool (), for causing rotation and/or reciprocation of the drill pipe () in a borehole or wellbore (). The apparatus () includes one or more control elements for selectively controlling operation of the motor so as to cause selective rotation and/or reciprocation of the drill pipe () which causes movement of the logging tool (), when fixed to the drill pipe (), in a manner that is detectable by the movement sensor ().

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Leicestershire, United Kingdom

Edward Sheriff