Grooved expandable recess shoe and pipe for deployment of mechanical positioning devices
AssigneeBaker Hughes Incorporated
InventorsGraham E. Farquhar, Mark K. Adam
Life of this patent
Estimating the term…
Abstract
A first, expandable casing member, in an unexpanded state, is provided with a lower axial end that has a radially expanded upset or recess shoe and a locating profile. The first casing member is run into a wellbore, expanded, and secured in place within the wellbore. A second expandable casing member is then provided in an unexpanded state and disposed into the wellbore through the first casing member using a running tool. The second casing member is located with respect to the first casing member and expanded using an expansion member carried by the running tool.
Claims16
A system for casing a wellbore comprising:
- a first casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition, the casing member further having:
- a recess shoe formed within the flowbore and having an expanded diameter with respect to the flowbore for seating of a second casing member;
- a locating profile formed within the flowbore for seating of complimentary locating members;
- and
- a second casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition.
A method of casing a wellbore with radially expandable casing members, the method comprising the steps of:
- disposing a first casing member into a wellbore, the first casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition, the first casing member further being disposed into the wellbore in the unexpanded condition;
- radially expanding the first casing member;
- disposing a second casing member into the wellbore through the flowbore of the first casing member, the second casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition, the second casing member further being disposed into the wellbore in the unexpanded condition;
- locating the second casing member with respect to the first casing member to align an axial end of the second casing member within a recess shoe of the first casing member by disposing a locating member associated with one of said casing members within a locating profile associated with the other of said casing members;
- and
- radially expanding the second casing member.
A method of casing a wellbore with radially expandable casing members, the method comprising the steps of:
- disposing a first casing member into a wellbore, the first casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition, the first casing member further being disposed into the wellbore in the unexpanded condition;
- radially expanding the first casing member;
- releasably securing a second casing member to a running tool, the second casing member having a generally cylindrical body that defines a central axial flowbore and that is plastically expandable between a radially unexpanded condition and a radially expanded condition, the second casing member further being disposed into the wellbore in the unexpanded condition;
- disposing the running tool and second casing member into the wellbore through the flowbore of the first casing member;
- locating the second casing member with respect to the first casing member to align an axial end of the second casing member within a recess shoe of the first casing member by disposing a locating member associated with one of said casing members within a locating profile associated with the other of said casing members;
- and
- radially expanding the second casing member.
Dependencies are inferred from the claim text.