Casing filling and circulating apparatus

A casing fill and circulation apparatus, comprising:

• a body having a lower end and a flowpath therethrough which terminates at an outlet;
• a movable valve member in said body comprising a shifting sleeve having a lower end;
• a seal on the body to interact with the inside of the casing;
• whereupon the casing can be filled by moving said valve member in the body to a point where it is substantially out of the flowpath near the outlet of said body, with said seal out of contact with the casing, and the casing can be circulated by engaging said seal to the casing and pumping fluid through said flowpath in said body;
• said body comprises a seat between its lower end and said outlet for engagement with said sleeve to close off said flowpath which extends through said sleeve;
• and
• said sleeve movable to an open position wherein its lower end, which contacts said seat when said flowpath is closed off. Is moved past said outlet in said body when actuated to permit flow through said flowpath.

A casing fill and circulation apparatus, comprising:

• a body having at least one port and a flowpath therethrough, insertable into the casing;
• a cup seal on the outer periphery of said body which is engageable with the casing when said body is inserted in the casing;
• and
• a circulation valve mounted to said body, said circulation valve operable by fluid pressure developed against it to selectively access said port.