Shoe for wellbore lining tubing

Details Shoe for wellbore lining tubing Shoe for wellbore lining tubing

2011-01-11

2011-01-11

Neuder, William P (Department: 3672)

Wells

Processes

Cementing, plugging or consolidating

C166S177400, C166S242800

Reexamination Certificate

active

07866391

ABSTRACT:
This invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In one embodiment, a shoe (30) is disclosed which includes a tubular outer body (32) that is coupled to a wellbore lining tubing (28), and a tubular inner body (36) located within the outer body and coupled to fluid supply tubing (38). A generally annular flow area (44) is defined between the bodies which is in selective fluid communication with the well-bore (10), for the return flow of fluid from the wellbore through a flow port (62) in the outer body, along the shoe and into an annulus (46) defined between the wellbore lining tubing and the fluid supply tubing. A valve assembly (40) of the shoe has an actuating member (92) located within the inner body, and a flow controller (96) for selectively closing the flow port. A ball (98) is used to prevent further fluid flow through the inner body into the wellbore. Exposure of the actuating member to fluid at a first fluid pressure then causes the actuating member to move to an actuating position where the flow controller closes the flow port. Exposure to fluid at a second fluid pressure higher than said first pressure reopens fluid flow from the inner body into the wellbore.

REFERENCES:
patent: 4469174 (1984-09-01), Freeman
patent: 6223823 (2001-05-01), Head
patent: 6401824 (2002-06-01), Musselwhite et al.
patent: 2006/0011354 (2006-01-01), Logiudice et al.
patent: 0169037 (2001-09-01), None

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