Top drive apparatus

Details Top drive apparatus Top drive apparatus

E - Fixed Constructions

21

B

E21B 3/02 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2718116

A top drive apparatus comprising a main body, a main shaft having a flow bore therethrough for the passage of drilling fluid, and a motor apparatus for rotating the main shaft characterised in that the main body depends from two spaced-apart bails, each bail with two spaced-apart lower ends, and each lower end connected to the main body thereby providing a four-point connection between the bails and the main body for the bails to support the top drive apparatus.

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