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US 11,236,564 B2Granted
Hybrid liner hanger and setting tool
AssigneeAllamon Tool Company, Inc.
InventorsJerry P. Allamon, Javier E. Bolivar
Life of this patent
Estimating the term…
Abstract
A setting mechanism for a liner hanger to be secured within the casing of an oil/gas well includes an expandable hydraulic chamber a portion of which is connected to a setting collar positioned around the liner hanger. Expansion of the chamber will cause the setting collar to radially move one or more slips having a gripping surface into contact with an inner surface of the casing.
Claims2
A liner hanger for an oil/gas well comprising:
- a) a tubular member having at least one slot in a wall portion of the tubular,
- b) an annular setting collar slidably mounted on an exterior surface of the tubular,
- c) at least one slip member having an inclined surface, the at least one slip member adapted to be moved in a radial direction by the annular setting collar,
- d) at least one ramp secured to the tubular, wherein the at least one ramp is configured to physically reposition the at least one slip in a radial direction
- e) an annular groove on an interior surface of the annular setting collar, the groove adapted to receive one or more locking dogs of a setting mechanism.
2 more elements
A method of setting a liner hanger within a casing of an oil/gas well which includes a primary setting mechanism and a fail-safe setting mechanism comprising:
- a) positioning the liner hanger comprising a tubular member having at least one slot in a wall portion of the tubular within the casing with the use of a running tool, wherein an annular groove on an interior surface of the annular setting collar is adapted to receive one or more locking dogs of the primary setting mechanism;
- b) upon failure of the primary setting mechanism, pulling up on the running tool to actuate the failsafe setting mechanism which includes the one or more locking dogs and a setting collar and at least one slip which are part of the primary setting mechanism.
Dependencies are inferred from the claim text.