Sealing element wear indicator system
AssigneeManaged Pressure Operations Pte. Ltd.
InventorsChristian Leuchtenberg, Austin Johnson, Patrick David Savage
Life of this patent
Estimating the term…
Abstract
A seal assembly for use in a pressure containment device for containing a fluid pressure in an annular space around a drill string whilst allowing the drill string to rotate in the pressure containment device. The seal assembly includes a seal with an inner surface and a tubular body, and a wear sensor embedded in the tubular body of the seal. The wear sensor emits an alert signal when the inner surface of the seal has been worn away by a first preset amount. The alert signal includes a pressure signal and/or a chemical signal.
Claims22
A seal assembly for use in a pressure containment device for containing a fluid pressure in an annular space around a drill string whilst allowing the drill string to rotate in the pressure containment device, the seal assembly comprising:
- a seal comprising an inner surface and a tubular body;
- and
- a wear sensor embedded in the tubular body of the seal, the wear sensor being configured to emit an alert signal when the inner surface of the seal has been worn away by a first preset amount,
- wherein,
- the alert signal comprises at least one of a pressure signal and a chemical signal.
A seal assembly for use in a pressure containment device for containing a fluid pressure in an annular space around a drill string whilst allowing the drill string to rotate in the pressure containment device, the seal assembly comprising:
- a seal comprising an inner surface and a tubular body;
- a wear sensor embedded in the tubular body of the seal, the wear sensor being configured to emit an alert signal when the inner surface of the seal has been worn away by a first preset amount;
- and
- a control display,
- wherein,
- the alert signal is configured to change based on a degree of wear of the seal, and
- the control display is configured,
- to provide a first visual indication that the alert signal has been emitted, and
- to provide a second visual indication when the alert signal has changed to indicate that the seal has been worn away by a second preset amount.
Dependencies are inferred from the claim text.