Bobby Frank Goad

US Patent:

40983358, Jul 4, 1978

Filed:

Mar 24, 1977

Appl. No.:

5/780603

Inventors:

Bobby F. Goad - Spring TX

Assignee:

Baker International Corp. - Orange CA

International Classification:

E21B 2306
E21B 33122

US Classification:

166120

Abstract:

A hanger for supporting dual tubing strings in a well casing from hanger mandrels which can swivel to facilitate threadedly connecting each mandrel to its associated tubing string. The hanger includes an orienting sleeve for receiving safety shut-off valves, the sleeve being adapted to swivel with respect to the rest of the hanger, making it easier to assemble the hanger onto the running and setting tool used for setting the hanger in the casing. The running and setting tool is releasably secured to the hanger. By imposing fluid pressure on the setting tool, the tubing hanger slips are expanded against the casing. Before the running and setting tool is released from the hanger and retrieved from the well casing, wire line retrievable blanking plugs can be set in the tubing string below the hanger, one plug being inserted in place in one tubing string before the hanger is lowered in the casing, and the other plug lowered through the running tool and hanger to its associated landing nipple in the other tubing string, to maintain the well under control after the running and setting tool is released from the hanger and retrieved at the top of the well bore in which the casing is confined.

US Patent:

40518949, Oct 4, 1977

Filed:

Jul 12, 1976

Appl. No.:

5/704125

Inventors:

Bobby F. Goad - Spring TX

Assignee:

Baker International Corporation - Orange CA

International Classification:

E21B 712

US Classification:

166 73

Abstract:

Apparatus for adjusting the distance between a lower tubing hanger anchored in a well casing to support a depending lower tubing string, and an upper tubing hanger at the well head, in which an adjustable spacer device has its lower end connected to the lower tubing hanger and its upper end to the lower end of a safety valve connected to an upper tubing string extending to the upper tubing anchor, the valve being controlled hydraulically by fluid under pressure imparted through a control line strapped, or otherwise secured, to the upper tubing string and extending from the top of the well to the safety valve. The upper tubing string, safety valve and control line, as well as the upper portion of the spacer, are rotatable as a unit with respect to the lower portion of the spacer to lower the unit relative to the lower tubing hanger until the upper tubing hanger lands on its well head seat, such action occurring without twisting the control tubing relative to the safety valve.