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 mandrel 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 mandrel hanger has an outer surface configured to engage a load ring and an engagement ring. The load ring also abuts the engagement ring and engages the landing ring shoulder.
Claims20
A casing system, comprising:
- 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;
- a mandrel hanger;
- a load ring comprising:
- an outer surface configured to engage with the landing ring shoulder;
- and
- an inner surface configured to engage with an outer surface of the mandrel hanger;
- an engagement ring abutting the lock ring and comprising an inner surface configured to engage with the outer surface of the mandrel hanger.
A method for installing a casing system, the method comprising:
- coupling a landing ring to a conductor pipe;
- coupling a load ring to an outer surface of a mandrel hanger;
- introducing the mandrel hanger and load ring through an opening of the landing ring;
- supporting the mandrel hanger via the landing ring by engaging an outer surface of the load ring with a landing ring shoulder extending radially inward from an inner surface of an opening of the landing ring;
- coupling an engagement ring to the outer surface of the mandrel hanger;
- and
- introducing a wellhead assembly onto the mandrel hanger and engagement ring.
Dependencies are inferred from the claim text.