Deformable ball seat
AssigneeBaker Hughes Incorporated
InventorsJames G. King, David B Ruddock
Life of this patent
Estimating the term…
Abstract
Apparatuses for restricting fluid flow through a well conduit comprise a housing having a longitudinal bore and a collapsible seat disposed within the bore. The seat has a first position defining a first seat inner diameter when the apparatus is in the run-in position and a second position defining a second seat inner diameter when the apparatus is in the set position. The first seat inner diameter is greater than the second seat inner diameter. A plug element is adapted to be disposed into the bore and landed on the seat to move the seat from the first position to the second position. While in the second position, the seat restricts fluid flow through the bore and provides additional support to the plug member landed on the seat.
Claims20
An apparatus for restricting flow through a well conduit, the apparatus comprising:
- a housing having a longitudinal bore and a collapsible seat disposed within the bore, the collapsible seat having a first position defining a first seat inner diameter when the apparatus is in the run-in position and a second position defining a second seat inner diameter when the apparatus is in the set position, the first seat inner diameter being greater than the second seat inner diameter so that the collapsible seat restricts fluid flow through the bore when the seat is in the second position;
- and
- a plug element adapted to be disposed into the bore and landed on the collapsible seat to move the collapsible seat from the first position to the second position.
An apparatus for restricting flow through a well conduit, the apparatus comprising:
- a housing having a longitudinal bore with a seat pivotally connected to an inner wall surface of the bore, the seat comprising a deformable ring and having a first position defining a first seat inner diameter and a second position defining a second seat inner diameter, the first seat inner diameter being greater than the second seat inner diameter;
- and
- a plug element adapted to be disposed into the bore and landed on the seat to move the seat from the first position to the second position causing the seat to restrict fluid flow through the bore.
A method of restricting a bore of a conduit disposed in a wellbore of a well, the method comprising the steps of:
- (a) providing a seat disposed within a housing having a longitudinal bore, the seat the seat comprising a first position defining a first seat inner diameter and a second position defining a second seat inner diameter, the first seat inner diameter being greater than the second seat inner diameter;
- (b) lowering the seat on a string of conduit into a wellbore of a well;
- (c) inserting a plug member into the conduit and landing the plug member on the seat;
- and
- (d) moving the seat from the first position to the second position causing restriction of the bore by the seat due to the seat moving from the first position to the second position.
Dependencies are inferred from the claim text.