Wellhead attachment system
AssigneeVault Pressure Control LLC
InventorsKnox Wright, Jason Meyer Armistead, Khang Van Nguyen, Andrew Browne Helvenston
Life of this patent
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Abstract
A casing system, includes a landing ring and a slip hanger. The landing ring defines an opening extending between a first end portion and a second end portion. The first end portion is configured to couple to a conductor pipe. The landing ring includes a landing ring shoulder extending radially inward from an inner surface of the opening. The slip hanger is configured to engage with casing The slip hanger includes at least one slip segment configured to engage with an outer diameter of the casing and an outer slip ring. The outer slip ring is disposed around and coupled to the at least one slip segment. The outer slip ring is configured to engage with the landing ring shoulder.
Claims17
A casing system, comprising:
- a wellhead assembly comprising one or more valves;
- a landing ring defining an opening extending between a first end portion and a second end portion, wherein the first end portion is configured to couple to a conductor pipe, the landing ring comprising a landing ring shoulder extending radially inward from an inner surface of the opening;
- and
- a slip hanger disposed between the wellhead assembly and the landing ring and configured to engage with casing, the slip hanger comprising:
- at least one slip element configured to engage with an outer diameter of the casing;
- and
- an outer slip ring disposed around and directly coupled to the at least one slip element,
- wherein the outer slip ring is configured to directly engage with the landing ring shoulder.
A method for installing a casing system, the method comprising:
- coupling a landing ring to a conductor pipe;
- introducing through an opening of the landing ring a slip hanger comprising at least one slip element configured to engage with an outer diameter of a casing string and an outer slip ring disposed around and directly coupled to the at least one slip element;
- supporting the slip hanger via the landing ring by directly engaging an outer surface of the outer slip ring with a landing ring shoulder extending radially inward from an inner surface of the opening of the landing ring;
- engaging an outer surface of the casing string via the slip hanger by permitting a force of the casing string to energize the at least one slip element, thereby permitting the landing ring to support the casing string;
- and
- introducing a wellhead assembly comprising one or more valves onto the slip hanger.
Dependencies are inferred from the claim text.