Patent ID: 8651174

Claim:
A ball and plug dropping head for use in sequentially dropping one or more balls and plugs into a well tubing, comprising: a) a tool body assembly having an upper end, an inlet at said upper end adapted to be fluidly connected in line with the lower end of a top drive, and an outlet generally aligned with the inlet; b) a flow channel that connects the inlet and the outlet; c) the tool body having a swivel having a cement inlet, a rotating and a non rotation portion; d) the tool body having a plurality of valving members spaced between the inlet and the outlet, each valving member having a flow bore, and being movable between open and closed positions, at least one valving member being positioned below the swivel; e) the flow channel being configured to enable fluid to bypass the valving members when a valving member is in the closed position; f) wherein fluid flow flows around the valving member when the said valving member is in the closed position and through the valving member when said valving member is in the open position; g) wherein in the open position each valve flow bore permits a ball or plug to pass therethrough, and circulating fluid to pass downwardly therethrough when neither a ball nor plug is in the valve flow bore; h) a plurality of said valving members having electrical actuators that enable movement of the valving member between open and closed positions; i) a transmitter having switches that when switched, send a wireless signal to the tool body assembly that enables a selected valve to be opened or closed; j) the tool body having receivers electrically interfaced with the actuators, at least one said receiver being positioned above the rotating portion of the swivel and at least one said receiver being positioned below said rotating portion of said swivel; and k) the tool body having at least one well control safety valve that is movable between open flow and closed flow positions and wherein said well control safety valve is not one of said valving members having a fluid flow channel that enables fluid to bypass the said safety valve when the safety valve is in a closed flow position.